<p>Today's <strong>Image of the Day</strong> from <a href="https://earthobservatory.nasa.gov/" target="_blank" rel="noreferrer noopener">NASA Earth Observatory</a> features the picturesque wetlands of Spain's Doñana National Park, This vital ecosystem, located in the Andalusia region, has received some long-awaited rainfall after enduring years of severe <a href="https://www.earth.com/news/climate-change-has-made-droughts-20-times-more-likely/" target="_blank" rel="noreferrer noopener">drought</a> conditions. </p>



<p>A significant increase in rainfall in March 2024 brought temporary relief to this UNESCO World Heritage Site and Biosphere Reserve, known for its rich biodiversity and critical role as a Ramsar Wetland of International Importance.</p>



<h2 class="wp-block-heading" id="h-a-decade-of-drought-in-donana-national-park">A decade of drought in Doñana National Park</h2>



<p>For over a decade, Doñana National Park has faced below-average rainfall levels, with the situation worsening significantly in the past three years. These years have recorded some of the lowest annual precipitation totals, compounded by unusually high temperatures across the country.&nbsp;</p>



<p>The effects of <a href="https://www.earth.com/news/drought-to-downpour-climate-change-triggers-extreme-weather-shifts/" target="_blank" rel="noreferrer noopener">climate change</a> were starkly visible in January 2024, which was noted as Spain's warmest January since records began, with temperatures averaging 2.4 degrees Celsius higher than normal.</p>



<p>The first quarter of 2024 continued this trend, potentially marking it as the warmest first quarter since 1961. The prolonged <a href="https://www.earth.com/news/global-drought-crisis-un-warns-of-unprecedented-emergency/" target="_blank" rel="noreferrer noopener">drought</a> has had a devastating impact on the park’s ecosystem, drying up <a href="https://www.earth.com/news/nearly-all-of-the-worlds-salt-marshes-may-be-underwater-by-2100/" target="_blank" rel="noreferrer noopener">marshes</a> and affecting both flora and fauna.</p>



<h2 class="wp-block-heading" id="h-welcome-change-in-the-weather">Welcome change in the weather</h2>



<p>The heavy rains that arrived in late March 2024 have momentarily brought some relief to the region. Satellite images acquired by the OLI on Landsat 8 and the OLI-2 on Landsat 9 showed significant changes in the landscape by April 9, 2024.&nbsp;</p>



<p>The featured image shows that marshes have been replenished and ponds have been temporarily filled, contrasting sharply with the desolate conditions observed just a year earlier.</p>



<p>A weather station in the park recorded 145 millimeters of rainfall in March 2024, making it the second-wettest March on record. Since the start of the water year in September 2023, the area has received over 400 millimeters of rainfall, surpassing the totals of each of the last three full water years. Despite this increase, the precipitation still falls short of the historical yearly average of more than 500 millimeters.</p>



<h2 class="wp-block-heading" id="h-ecological-responses-and-challenges">Ecological responses and challenges</h2>



<p>The western part of the park is home to thousands of small, shallow pools known as Mediterranean temporary ponds, which naturally experience cycles of flooding and drying. Following the recent rains, several of the largest ponds flooded, as did marsh areas farther inland, though some regions remained dry.</p>



<p>The Doñana Biological Station reported that this influx of water led to a resurgence of vegetation beneficial to breeding waterfowl such as coots, grebes, and herons.&nbsp;</p>



<p>However, despite these positive signs, the challenges remain significant. Development pressures from agricultural fields and an adjacent resort town continue to strain the local aquifer, exacerbating the water scarcity and impacting the wetland's ecological balance.</p>



<h2 class="wp-block-heading" id="h-long-term-concerns-for-donana-national-park">Long-term concerns for Doñana National Park</h2>



<p>Javier Bustamante, a researcher at the Doñana Biological Station, emphasized that while the rainfall has eased some of the immediate drought-related issues, it does not address the deeper problem of groundwater overexploitation.&nbsp;</p>



<p>"The rains have partially alleviated the most immediate drought problems, but they do not solve the invisible problem of groundwater overexploitation," Bustamante stated, highlighting the complex nature of the challenges facing Doñana.</p>



<p>The overall effect of the rainfall will become clearer in the coming months, but experts caution that the changes observed might not signify long-term relief. Conservation efforts continue to focus on managing external pressures and restoring the ecological balance to preserve Doñana National Park for future generations.</p>



<h2 class="wp-block-heading" id="h-more-about-donana-national-park">More about Doñana National Park</h2>



<p>Doñana National Park is one of Europe's most important and diverse natural reserves. This vast park stretches across parts of the provinces of Huelva, Seville, and Cádiz. It was established as a national park in 1969 and covers an area of approximately 543 square kilometers.</p>



<p>The park is celebrated for its extraordinary biodiversity. It serves as a critical stopover, breeding, and wintering site for thousands of European and African migratory birds.&nbsp;</p>



<p>Doñana's complex ecosystem includes <a href="https://www.earth.com/news/coastal-wetlands-are-inching-closer-to-extinction-as-the-world-heats-up/" target="_blank" rel="noreferrer noopener">marshlands</a>, shallow streams, and sand dunes, providing habitat for a wide variety of plant and animal species. Among its notable inhabitants are the Iberian lynx and the Spanish imperial eagle, both of which are endangered species.</p>



<p>Doñana also has a rich cultural heritage; it has been influenced by various civilizations throughout history, including the Romans and Moors. This history is reflected in the archaeological sites found within its boundaries, including the remains of the town of La Algaida.</p>



<p>Image Credit: NASA Earth Observatory&nbsp;</p>



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Doñana National Park gets temporary relief from drought

Today's Image of the Day from NASA Earth Observatory features...

<p>Today's <strong>Image of the Day</strong> from <a href="https://earthobservatory.nasa.gov/" target="_blank" rel="noreferrer noopener">NASA Earth Observatory</a> features Ruang, a small volcanic island in North Sulawesi, Indonesia. The tranquil environment of Ruang was shattered by a powerful volcanic eruption on the night of April 16, 2024.</p>



<p>This event has left the island's 800 residents grappling with its devastating aftermath, while scientists are assessing its potential global effects.</p>



<h2 class="wp-block-heading" id="h-a-violent-awakening-on-ruang">A violent awakening on Ruang</h2>



<p>Ruang, located in the Sangihe Islands arc, is known for its long history of <a href="https://www.earth.com/news/volcanic-eruptions-play-an-overlooked-role-in-earths-climate/" target="_blank" rel="noreferrer noopener">volcanic activity</a>, but the intensity of the latest eruption has been particularly alarming. The <a href="https://www.earth.com/news/explosive-volcanic-eruption-triggered-an-hours-long-thunderstorm/" target="_blank" rel="noreferrer noopener">eruption</a> produced explosive discharges, sending vast plumes of ash and gas soaring into the stratosphere. The force of nature transformed lush greenery into a gray wasteland.</p>



<p>“Late on April 16, 2024, the mountain roared to life, unleashing a series of explosive eruptions that, at times, sent plumes of ash and gas billowing high into the stratosphere. The eruption also bombarded the island with tephra, small pebbles of lapilli, and fine shards of pulverized rock called ash,” said NASA.</p>



<h2 class="wp-block-heading" id="h-extensive-damage-and-humanitarian-efforts">Extensive damage and humanitarian efforts</h2>



<p>The eruption's immediate impact was severe, with settlements on the north side of Ruang and Laingpatehi village experiencing extensive damage due to volcanic debris.&nbsp;</p>



<p>More than 500 houses were destroyed or severely damaged, according to Indonesia’s disaster management agency, Badan Nasional Penanggulangan Bencana (BNPB). The heavy ashfall also impacted local agriculture, damaging crops and farms.&nbsp;</p>



<p>In response to the crisis, the Sam Ratulangi International Airport in nearby Manado was temporarily closed, disrupting travel and causing widespread flight cancellations. It was not until April 22 that the airport could reopen, following significant cleanup efforts and a decrease in the volcanic threat level.</p>



<h2 class="wp-block-heading" id="h-scientific-analysis-and-global-concerns">Scientific analysis and global concerns</h2>



<p>The eruption has attracted significant scientific interest due to the vast quantities of ash and sulfur dioxide it emitted. Atmospheric scientist Ghassan Taha from NASA’s Goddard Space Flight Center noted, "We expect to see aerosol particles circulating in the stratosphere for weeks, if not months." This observation is critical as particles reaching this altitude can have extensive, albeit temporary, effects on global climate patterns.</p>



<p>Volcanologist Simon Carn from Michigan Technological University reported that the eruption released between 0.3 to 0.5 teragrams of sulfur dioxide on April 17 and 18. These levels, while substantial, fall below the threshold generally required to affect global temperatures significantly.&nbsp;</p>



<p>For context, the 1991 Mount Pinatubo eruption, which had a pronounced cooling effect on the Earth's climate, released approximately 20 teragrams of sulfur dioxide.</p>



<h2 class="wp-block-heading" id="h-preparedness-and-future-risks">Preparedness and future risks</h2>



<p>In light of Ruang's active volcanic history and the potential for further eruptions, local authorities remain vigilant. The risk of lahars and tsunamis prompted immediate evacuations and multiple tsunami warnings, though, fortunately, no substantial tsunamis have occurred thus far. Over 16,000 residents have been evacuated from the most vulnerable areas, a move that has likely prevented any fatalities or serious injuries.</p>



<p>The 2024 <a href="https://www.earth.com/news/underwater-volcanic-eruptions-are-more-harmful-than-previously-believed/" target="_blank" rel="noreferrer noopener">eruption</a> of Ruang is a stark reminder of the powerful and often unpredictable nature of volcanic islands. While the local and immediate impacts are devastating, the eruption also offers valuable data for scientists studying the broader implications of such natural events on atmospheric conditions and climate. </p>



<h2 class="wp-block-heading" id="h-more-about-ruang">More about Ruang</h2>



<p>The population on Ruang is small, with residents primarily engaged in subsistence fishing and agriculture, which is typical of remote Indonesian islands. The island's terrain and soil fertility, influenced by volcanic ash, may support the cultivation of certain crops that are adapted to such conditions.</p>



<p>The Ruang volcano rises to about 725 meters above sea level, making it a prominent feature in the region. This area is part of the volcanic arc that includes numerous volcanoes produced by the subduction of the oceanic plate under the continental margin.</p>



<p>The active stratovolcano has had several recorded eruptions in history, with significant activity occurring in 1871, 1873, and 2002.&nbsp;</p>



<p>The image was captured by the Operational Land Imager (OLI) on April 20, 2024.</p>



<p>Image Credit: NASA Earth Observatory&nbsp;</p>



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Ruang volcano eruption has devastated the tranquil island

<p>Today's <strong>Image of the Day</strong> from <a href="https://earthobservatory.nasa.gov/" target="_blank" rel="noreferrer noopener">NASA Earth Observatory</a> features the Bermejo River and the Río Grande de Tarija, which flow through Argentina and Bolivia in South America. The photograph was captured by an astronaut onboard the International Space Station.</p>



<h2 class="wp-block-heading" id="h-meandering-rivers">Meandering rivers</h2>



<p>“The meandering rivers in this image are sourced in the Andes Mountains and generally flow southeast through valleys in the foothills - the region between the high mountains and plains. The Iruya River deposits particles of silt and clay as it flows into the valley centered in this image,” said NASA.</p>



<p>“Visible indications of the rivers’ shifting channels include river islands, point bars (on the inside curve of streams), and several meander scars. Such scars form when a river gets cut off from the main flow and fills in with sediment, soil, and vegetation.”</p>



<p>“Sediment from the adjacent highlands filled valleys that were formed by tectonic forces driving uplift of the Andes. These deposits are subsequently carried by rivers, such as the Iruya, along with new sediment to form the light-toned braided channels and the adjacent darker-toned floodplains. Nutrient-rich floodplain soils provide fertile ground for agricultural fields.”</p>



<h2 class="wp-block-heading" id="h-bermejo-river">Bermejo River</h2>



<p>The Bermejo River originates in the Bolivian <a href="https://www.earth.com/news/biodiversity-hotspots-are-shrinking-in-the-andes-mountains/" target="_blank" rel="noreferrer noopener">Andes</a> and flows into Argentina. It plays a crucial role in the geographical and ecological landscape of the region. The river's course is characterized by its meandering path through the Gran Chaco plain, making it a significant river in the region's hydrological system.</p>



<h3 class="wp-block-heading" id="h-economic-importance">Economic importance</h3>



<p>The Bermejo River is vital for agriculture, providing essential water resources for irrigation. It also has potential for hydroelectric power generation.</p>



<h3 class="wp-block-heading" id="h-biodiversity-nbsp">Biodiversity&nbsp;</h3>



<p>The diverse habitats created by the Bermejo River, including its riverbanks, floodplains, and adjacent forests, support rich biodiversity. However, the wildlife in this region faces threats from habitat destruction, pollution, and climate change, making conservation efforts critical for their survival.</p>



<p><a href="https://www.earth.com/news/jaguars-in-the-amazon-are-threatened-by-climate-extremes/" target="_blank" rel="noreferrer noopener">Jaguars</a> are the apex predators of this region, and are occasionally spotted along the riverbanks, where they hunt. Large, herbivorous mammals called tapirs are found in the forests around the Bermejo River. They often visit the river to drink and cool off.</p>



<p>Capibaras, the world’s largest rodents, are commonly found in the wetlands and along the river edges.</p>



<p>The tallest flying bird found in South and Central America, jabirus can often be seen in wetlands along the Bermejo River. Toco toucans, known for their colorful bills, can be found in the forested areas near the river.</p>



<h2 class="wp-block-heading" id="h-rio-grande-de-tarija">Río Grande de Tarija</h2>



<p>The Río Grande de Tarija, also known in its lower stretches as the Guadalquivir, flows primarily within Bolivia. It is a critical watercourse in the Tarija Department, contributing significantly to the region's agriculture and livelihoods.</p>



<h3 class="wp-block-heading" id="h-economic-importance-0">Economic importance</h3>



<p>This river is essential for irrigation, supporting a variety of crops and contributing to the local economy. The surrounding lands are fertile and productive, thanks to the river's water.</p>



<h3 class="wp-block-heading" id="h-challenges">Challenges</h3>



<p>Similar to other rivers, the Río Grande de Tarija faces challenges such as water management issues, <a href="https://www.earth.com/news/predicting-the-effects-of-pollutants-on-river-ecosystems/" target="_blank" rel="noreferrer noopener">pollution</a>, and the impacts of climate change on its flow and health.</p>



<h3 class="wp-block-heading" id="h-wildlife-in-bolivian-rivers">Wildlife in Bolivian rivers</h3>



<p>River basins in Bolivia are home to a wide range of bird species, including various species of herons, egrets, kingfishers, and perhaps even some rarer species like the wattled jacana or the sunbittern. The diverse birdlife is attracted to the abundance of fish and the relatively untouched natural habitats along the river.</p>



<p>The Characidae family includes many fish species that are commonly found in South American rivers, such as tetras. They are known for their diversity and are a key part of the river's ecosystem, serving as both <a href="https://www.earth.com/news/diving-to-extremes-predatory-fish-frequent-the-oceans-twilight-zone/" target="_blank" rel="noreferrer noopener">predator</a> and prey.</p>



<p>Cichlids are another diverse group of fish that can be found in South American rivers. They are appreciated by aquarium enthusiasts worldwide and play significant roles in their ecosystems as both predators and herbivores.</p>



<p>The rivers of Bolivia are also home to various catfish species, which are well adapted to life in muddy and turbulent waters. These include the armored catfish, which are often found clinging to rocks and logs.</p>



<p>Image Credit: NASA Earth Observatory/ ISS Crew Earth Observations Facility/ Earth Science and Remote Sensing Unit, Johnson Space Center</p>



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<h3 class="wp-block-heading" id="h-nbsp">&nbsp;</h3>

The Río Grande de Tarija and Bermejo River in South America

<p>Today's <strong>Image of the Day</strong> from <a href="https://earthobservatory.nasa.gov/" target="_blank" rel="noreferrer noopener">NASA Earth Observatory</a> features the delta of the Ebro River on the northeast coast of Spain, captured by the Copernicus Sentinel-2 mission.</p>



<h2 class="wp-block-heading" id="h-ebro-river">Ebro River</h2>



<p>“Stretching across 910 km of northern Spain, the Ebro River is the second-longest river in the Iberian Peninsula. In the image, it can be seen as a green line winding its way through the peninsula before flowing into the Mediterranean, shaping the Ebro Delta,” noted ESA.</p>



<p>“The Ebro River discharges more water into the sea than any other river in Spain. As suspended sediment flows from the river’s mouth, it tints the coastal waters with a turquoise hue.”</p>



<h2 class="wp-block-heading" id="h-ebro-delta">Ebro Delta</h2>



<p>The Ebro Delta is one of the largest <a href="https://www.earth.com/news/wetland-methane-emissions-have-surged-at-high-latitudes/">wetland areas</a> in the western Mediterranean region. The river's basin is the largest in Spain, covering about 85,000 square kilometers.</p>



<h2 class="wp-block-heading" id="h-historical-significance-nbsp">Historical significance&nbsp;</h2>



<p>Historically, the Ebro River has been significant in numerous battles, including the famous Battle of the Ebro during the Spanish Civil War, which was one of the war's longest and deadliest conflicts.&nbsp;</p>



<h2 class="wp-block-heading" id="h-economic-significance-nbsp">Economic significance&nbsp;</h2>



<p>Economically, the Ebro plays a crucial role in agriculture, particularly in regions like La Rioja and Navarre, which are known for their vineyards. Additionally, the river supports various industries and hydroelectric power generation.</p>



<h2 class="wp-block-heading" id="h-ecological-significance">Ecological significance</h2>



<p>The Ebro Delta is ecologically rich, providing habitat for diverse bird species. It is also a vital area for rice cultivation in Spain.&nbsp;</p>



<h3 class="wp-block-heading" id="h-nature-reserve">Nature reserve</h3>



<p>“Most of the delta comprises the Ebro Delta Nature Reserve. With its protected wetlands, beaches, marshes, salt pans and estuaries, this reserve provides a natural habitat for numerous migratory birds and waterfowl,” said ESA.</p>



<h3 class="wp-block-heading" id="h-environmental-challenges-nbsp">Environmental challenges&nbsp;</h3>



<p>The river and its delta face environmental challenges such as pollution, water extraction for irrigation, and the impacts of <a href="https://www.earth.com/news/climate-change-may-have-altered-river-flow-worldwide/">climate change</a>, which threaten its ecosystem and the sustainability of its water resources.</p>



<h2 class="wp-block-heading" id="h-the-northeast-coast-of-spain">The northeast coast of Spain</h2>



<p>The northeast coast of Spain is a vibrant and diverse region, characterized by its rich history, unique culture, and stunning landscapes. </p>



<p>It includes the autonomous communities of Catalonia, which features the dynamic city of Barcelona, and part of the Valencian Community. This area is also part of what is known as the Costa Brava, which stretches from the town of Blanes up to the French border.</p>



<h3 class="wp-block-heading" id="h-geography">Geography</h3>



<p>The <a href="https://www.earth.com/news/human-activity-impacts-97-percent-of-the-worlds-coastline/">coastline</a> is renowned for its rugged beauty, with rocky cliffs, secluded coves, and small beaches. The interior regions feature mountains such as the Pyrenees, which offer skiing in winter and hiking in the summer.</p>



<h3 class="wp-block-heading" id="h-cultural-heritage">Cultural heritage</h3>



<p>The area has a strong cultural identity, particularly in Catalonia, where there is a significant movement for independence. The Catalan language is widely spoken alongside Spanish. The region is also known for its festivals, architecture (notably the works of Antoni Gaudí in Barcelona), and traditional dances like the Sardana.</p>



<h3 class="wp-block-heading" id="h-cuisine">Cuisine</h3>



<p>The cuisine is a delightful mix of fresh seafood from the Mediterranean, traditional Catalan dishes like "pa amb tomàquet" (bread with tomato), and rice dishes such as paella in the Valencian region. The area is also famous for its wines, including the sparkling wine Cava.</p>



<h3 class="wp-block-heading" id="h-tourism">Tourism</h3>



<p>The northeast coast attracts millions of tourists each year due to its beautiful beaches, historical sites, and vibrant cities. Barcelona, in particular, is a major tourist destination with attractions like the Sagrada Familia, Park Güell, and the bustling La Rambla.</p>



<h3 class="wp-block-heading" id="h-economy">Economy</h3>



<p>The economy of the northeast coast is one of the most dynamic in Spain, with Barcelona serving as a major hub for trade, education, entertainment, and technology.</p>



<p>Image Credit: NASA Earth Observatory</p>



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The Ebro River on the northeast coast of Spain

<p>Today's <strong>Image of the Day</strong> from <a href="https://earthobservatory.nasa.gov/" target="_blank" rel="noreferrer noopener">NASA Earth Observatory</a> features the United Arab Emirates, where a slow-moving storm system dumped more than a year's worth of rainfall in just a few hours. </p>



<p>“The UAE’s National Center for Meteorology reported that eastern parts of the country measured up to 250 millimeters (10 inches) of rain in less than 24 hours. UAE, known for its dry desert climate, receives only about 140 to 200 millimeters (5.5 to 8 inches) of rainfall per year,” said NASA.</p>



<p>“Dubai International Airport recorded 119 millimeters on April 16, which is 1.5 times its typical annual rainfall. The deluge temporarily halted flights at the airport, which is among the world’s busiest for international travel.”</p>



<h2 class="wp-block-heading" id="h-heaviest-rainfall-on-record-in-the-united-arab-emirates-nbsp">Heaviest rainfall on record in the United Arab Emirates&nbsp;</h2>



<p>Authorities noted that this was the heaviest <a href="https://www.earth.com/news/record-heat-fueled-unexpected-and-deadly-storms-in-2023/" target="_blank" rel="noreferrer noopener">rainfall</a> on record in the United Arab Emirates. The news agency WAM called it a historic weather event that surpassed “anything documented since the start of data collection in 1949.”&nbsp;</p>



<p>“Heavy rain triggered flash flooding across eastern parts of the country, inundating roads and disrupting transportation,” said NASA. “The system first hit Oman on April 14 and continued to batter the UAE through most of the day on April 16.”&nbsp;</p>



<p>At least 18 people were killed in the <a href="https://www.earth.com/news/heavy-rainfall-events-in-the-northeast-are-set-to-increase-by-over-50-percent/" target="_blank" rel="noreferrer noopener">heavy rains</a> in Oman, including ten children that were swept away in a vehicle with one adult, according to a statement from the country’s National Committee for Emergency Management.&nbsp;</p>



<h2 class="wp-block-heading" id="h-strong-low-pressure-system">Strong low-pressure system</h2>



<p>Michael Mann, a climate scientist at the University of Pennsylvania, noted that three low-pressure systems formed a train of <a href="https://www.earth.com/news/thunderstorms-are-becoming-more-intense-due-to-climate-change/" target="_blank" rel="noreferrer noopener">storms</a> slowly moving along the jet stream - the river of air that moves weather systems - toward the Persian Gulf.&nbsp;</p>



<p>“The strong low-pressure system delivered multiple rounds of high winds and heavy rain to the northern and eastern parts of the country,” said NASA. “Some areas remained flooded on April 19, when Landsat 9 passed over the region for the first time since the storms.”&nbsp;</p>



<p>Climate experts attribute such extreme weather events to <a href="https://www.earth.com/news/limiting-global-warming-to-1-5-degrees-celsius-would-save-billions-of-lives/" target="_blank" rel="noreferrer noopener">global warming</a>. According to a report from Reuters, researchers anticipate that climate change will lead to hotter temperatures, increased humidity, and a greater risk of <a href="https://www.earth.com/news/seeking-ways-to-prevent-flooding-caused-by-climate-change/" target="_blank" rel="noreferrer noopener">flooding</a> in parts of the Gulf region. “Countries like the UAE where there is a lack of drainage infrastructure to cope with heavy rains can suffer the most,” the report stated.&nbsp;</p>



<h2 class="wp-block-heading" id="h-more-about-the-united-arab-emirates-nbsp">More about the United Arab Emirates&nbsp;</h2>



<p>The United Arab Emirates (UAE) is a federation of seven emirates located on the eastern side of the Arabian Peninsula. It borders Oman and Saudi Arabia, and has maritime borders with Iran and Qatar in the Persian Gulf. Established as a federation in 1971, the UAE has rapidly developed into one of the most modern and wealthy nations in the world, largely thanks to its vast oil and natural gas reserves.</p>



<p>Abu Dhabi serves as the capital and is the largest emirate, both in terms of land area and economy, largely because it holds the majority of the UAE's oil reserves. Dubai is the most populous city and is renowned globally for its spectacular skyscrapers, including the Burj Khalifa, the tallest building in the world, as well as its bustling ports, and vibrant tourism and shopping sectors.</p>



<p>The UAE has a diverse and multicultural society with a significant expatriate population, drawn by business opportunities and the tax-free living in many sectors. The official language is Arabic, though English is widely spoken, especially in business and educational settings.</p>



<p>Politically, the UAE is a federal absolute monarchy. It is governed by a Supreme Council of Rulers made up of the seven emirs, who appoint the prime minister and the cabinet. The country has made significant strides in terms of infrastructure and healthcare, and it continues to invest heavily in various sectors including renewable energy, education, and technology.</p>



<p>Culturally, the UAE balances its rapid modernization with a strong commitment to traditional Arab culture. The heritage of the desert Bedouin lifestyle is celebrated with falconry, camel racing, and traditional dance remaining integral to its cultural festivities. The nation is also a major hub for international arts and sports events, enhancing its global profile and cultural footprint.</p>



<p>Image Credit: NASA Earth Observatory&nbsp;</p>



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Storms dumped record rainfall in the United Arab Emirates

<p>Today's <strong>Image of the Day</strong> from the <a href="https://www.esa.int/" target="_blank" rel="noreferrer noopener">European Space Agency </a>features the barred spiral galaxy NGC 3783, which is located about 130 million light-years away in the constellation Centaurus. NGC 3783 is also the most prominent of a galaxy group (by the same name) that contains 47 <a href="https://www.earth.com/news/james-webb-captures-galaxies-that-are-too-old-to-exist/" target="_blank" rel="noreferrer noopener">galaxies</a>. </p>



<h2 class="wp-block-heading" id="h-galaxy-groups">Galaxy groups</h2>



<p>“Like galaxy clusters, galaxy groups are aggregates of gravitationally bound galaxies. Galaxy groups, however, are less massive and contain fewer members than <a href="https://www.earth.com/news/titanic-galaxy-cluster-collision-defies-all-current-understanding-of-the-universe/" target="_blank" rel="noreferrer noopener">galaxy clusters</a> do: where galaxy clusters can contain hundreds or even thousands of constituent galaxies, galaxy groups do not typically include more than 50,” noted ESA.</p>



<p>“The Milky Way is actually part of a galaxy group, known as the Local Group, which contains two other large galaxies (Andromeda and the Triangulum galaxy), as well as several dozen satellite and dwarf galaxies.”</p>



<h2 class="wp-block-heading" id="h-hd-101274-a-blue-giant-star">HD 101274: A blue giant star</h2>



<p>The bright object that appears to the right of the galaxy is the star HD 101274. “The perspective in this image makes the star and the galaxy look like close companions, but this is an illusion. HD 101274 lies only about 1,530 light-years from Earth, meaning it is about 85 thousand times closer than NGC 3783,” explained ESA.&nbsp;</p>



<p>HD 101274 is part of the NGC 3766 cluster, which is sometimes referred to as the Pearl Cluster, an open cluster known for its richness in bright stars and its relatively young age.</p>



<p>HD 101274 is categorized as a blue giant star, characterized by its high temperature and luminosity. Blue giants are massive stars that have left the main sequence phase of stellar evolution and are burning helium or heavier elements in their cores. These stars are known for their short lifespans relative to smaller stars due to their rapid consumption of nuclear fuel.</p>



<p><a href="https://www.earth.com/news/dark-stars-scientists-discover-a-new-type-of-star-powered-by-dark-matter/" target="_blank" rel="noreferrer noopener">Stars</a> like HD 101274 are important for astronomers because they help in studying the properties of stellar populations in clusters and the dynamics of stellar evolution in different environments. The spectral and photometric observations of such stars can provide valuable insights into the characteristics of their atmospheres, internal structures, and the processes occurring within and around them.</p>



<h2 class="wp-block-heading" id="h-bright-central-region-of-ngc-3783">Bright central region of NGC 3783</h2>



<p>One of the most interesting aspects of NGC 3783 is that it harbors an active galactic nucleus, meaning its central region is exceptionally luminous, likely due to the presence of a supermassive black hole. This black hole is actively accreting material, which emits a substantial amount of radiation as it spirals inward and heats up.</p>



<p>This galaxy is particularly known for its bright central region and has been studied extensively in the ultraviolet and X-ray light spectra to understand better the properties of the accretion disk around the black hole and the complex dynamics of the material surrounding it. These studies are crucial for understanding the physics of active galactic nuclei and the role they play in <a href="https://www.earth.com/news/galaxies-like-our-own-milky-way-are-not-unique/" target="_blank" rel="noreferrer noopener">galaxy evolution</a>.</p>



<p>According to ESA, NGC 3783 is a Type I Seyfert galaxy. “In this image it is recorded by Hubble in incredible detail, from its glowing central bar to its narrow, winding arms and the dust threaded through them, thanks to five separate images taken in different wavelengths of light," noted ESA.</p>



<p>“In fact, the galactic center is bright enough to Hubble that it exhibits diffraction spikes, normally only seen on stars such as HD 101274.”</p>



<h2 class="wp-block-heading" id="h-more-about-the-ngc-3783-galaxy-group">More about the NGC 3783 galaxy group</h2>



<p>The NGC 3783 group is part of the larger Hydra-Centaurus Supercluster, which itself is a massive collection of galaxies and galaxy clusters located primarily in the constellations of Hydra and Centaurus.</p>



<p>The NGC 3783 group consists of several galaxies that are gravitationally bound and interact with each other. These interactions can influence the galaxies' evolution through mechanisms like tidal forces and merger events, which can trigger star formation, fuel central black holes, and reshape the galaxies' structures.</p>



<p>Studying groups like the NGC 3783 group helps astronomers understand how <a href="https://www.earth.com/news/ceers-2112-ancient-galaxy-looks-strikingly-similar-to-ours/" target="_blank" rel="noreferrer noopener">galaxies</a> evolve together in a common gravitational environment, offering insights into the dynamics and evolution of structures on cosmic scales. This is especially relevant in understanding how galaxies influence each other through gravitational interactions and the environmental effects on galaxy evolution.</p>



<p>Image Credit: ESA/Hubble &amp; NASA</p>



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The luminous galaxy NGC 3783 and a blue giant star

Today's Image of the Day from the European Space Agency...

View,Of,The,Device,Of,An,Oil,Drilling,Rig

<p>Earth's surface bears the visible scars of human activities, from greenhouse gas emissions to deforestation. However, the impact of human intervention extends far beyond what meets the eye, reaching hundreds of meters to several kilometers beneath the <a href="https://www.earth.com/news/new-model-reveals-the-evolution-of-the-earths-surface/#google_vignette" target="_blank" rel="noreferrer noopener">planet's surface</a> into Earth's deep subsurface. </p>



<p>This hidden realm, often overlooked, is now the subject of disturbing research by hydrology experts. Jennifer McIntosh, a professor in the University of Arizona's <a href="https://has.arizona.edu/" target="_blank" rel="noreferrer noopener">Department of Hydrology and Atmospheric Sciences</a>, and her colleagues have delved into the ways humans influence Earth's deep subsurface. </p>



<p>"We looked at how the rates of fluid production with <a href="https://www.earth.com/news/oil-and-gas-production-linked-to-77-billion-in-annual-health-care-costs/" target="_blank" rel="noreferrer noopener">oil and gas</a> compare to natural background circulation of water and showed how humans have made a big impact on the circulation of fluids in the subsurface," McIntosh explained.</p>



<p>In a paper published in the journal <em>Earth's Future</em>, they shed light on the significant impact of human activities on the circulation of fluids in this subterranean zone.</p>



<h2 class="wp-block-heading">Deciphering the hidden world in motion beneath our feet</h2>



<p>The study, led by Grant Ferguson, also from the UArizona, compared the rates of fluid production from oil and gas extraction to the natural background circulation of water. </p>



<p>The findings reveal that human-induced <a href="https://www.earth.com/news/earth-internal-jet-stream-core/" target="_blank" rel="noreferrer noopener">fluid fluxes</a> surpass the natural flow, and they are projected to increase further with proposed strategies for combating climate change.</p>



<p>These strategies include geologic carbon sequestration, geothermal energy production, and <a href="https://www.earth.com/news/fools-gold-may-be-a-valuable-source-of-lithium/" target="_blank" rel="noreferrer noopener">lithium extraction</a> from underground mineral-rich brine. </p>



<p>"Responsible management of the subsurface is central to any hope for a green transition, sustainable future and keeping warming below a few degrees," emphasizes Peter Reiners, a professor in the <a href="https://www.geo.arizona.edu/" target="_blank" rel="noreferrer noopener">UArizona Department of Geosciences</a> and a co-author of the study.</p>



<h2 class="wp-block-heading" id="h-earth-s-subsurface-fluid-fluxes">Earth's subsurface fluid fluxes</h2>



<p>These fluxes transport water, gases, and other substances through the subsurface, influencing everything from groundwater resources to geothermal energy.</p>



<h3 class="wp-block-heading">Types of subsurface fluid fluxes</h3>



<h4 class="wp-block-heading">Groundwater flow</h4>



<p><a href="https://www.earth.com/news/groundwater-depletion-is-accelerating-but-it-is-not-inevitable/" target="_blank" rel="noreferrer noopener">Groundwater flow</a> represents the movement of water through porous and fractured rock formations. This flow occurs due to pressure gradients and the force of gravity, allowing water to move from areas of high hydraulic head to areas of low hydraulic head. Groundwater flow plays a vital role in the hydrologic cycle, recharging aquifers and sustaining surface water bodies.</p>



<h4 class="wp-block-heading">Hydrocarbon migration</h4>



<p>Subsurface fluid fluxes also include the migration of hydrocarbons, such as <a href="https://www.earth.com/news/millions-of-orphaned-oil-and-gas-wells-litter-the-world-and-must-be-cleaned-up/" target="_blank" rel="noreferrer noopener">oil and natural gas</a>. These fluids originate from organic-rich source rocks and migrate through permeable rock layers until they encounter traps or seals. Understanding hydrocarbon migration is essential for oil and gas exploration and production.</p>



<h4 class="wp-block-heading">Geothermal fluid circulation</h4>



<p>In regions with high <a href="https://www.earth.com/news/underground-water-could-be-a-great-source-of-renewable-energy/" target="_blank" rel="noreferrer noopener">geothermal gradients</a>, subsurface fluids can circulate through fractures and permeable rock formations, absorbing heat from the <a href="https://www.earth.com/news/discovery-ancient-ocean-floor-surrounds-the-earths-core/" target="_blank" rel="noreferrer noopener">Earth's interior</a>. This heated fluid can then rise to the surface, creating hot springs, geysers, and fumaroles. Geothermal fluid circulation is a key factor in the development of geothermal energy resources.</p>



<h2 class="wp-block-heading">Importance of Earth's subsurface fluid fluxes</h2>



<p>Subsurface fluid fluxes have far-reaching impacts on various aspects of our planet. They influence the availability and quality of groundwater resources, which are essential for human consumption, agriculture, and industrial activities. </p>



<p>Additionally, these fluxes play a crucial role in the formation and distribution of mineral resources, such as ore deposits and petroleum accumulations.</p>



<p>Moreover, subsurface fluid fluxes contribute to the transport and cycling of chemical elements and compounds within the <a href="https://www.earth.com/news/unexpected-molten-rock-layer-discovered-under-earths-crust/" target="_blank" rel="noreferrer noopener">Earth's crust</a>. </p>



<p>This process has implications for geochemical cycles, rock-water interactions, and the evolution of subsurface environments.</p>



<h2 class="wp-block-heading">Human intervention in Earth's fluid dynamics</h2>



<p>In <a href="https://www.earth.com/news/un-chief-fossil-fuel-era-must-end-for-humanitys-survival/" target="_blank" rel="noreferrer noopener">oil and natural gas</a> production, saline water from the deep subsurface is extracted alongside the targeted resources. This ancient water, often millions of years old, acquires its salinity from the evaporation of ancient seawater or reactions with rocks and minerals. </p>



<p>To maintain reservoir pressures and enhance oil recovery, near-surface water is added to the extracted saline water, and the blended mixture is reinjected into the subsurface, creating a continuous cycle of fluid production and reinjection.</p>



<p>Similar processes occur in lithium extraction, geothermal energy production, and geologic carbon sequestration, where leftover saline water is reinjected into the underground. </p>



<p>"We show that the fluid injection rates or recharge rates from those oil and gas activities is greater than what naturally occurs," states McIntosh.</p>



<h2 class="wp-block-heading">Rewriting Earth's history through subsurface geology</h2>



<p>Using existing data from various sources, the research team found that current fluid movement rates induced by human activities surpass those that occurred before human intervention. </p>



<p>As carbon capture, sequestration, and lithium extraction intensify, the researchers also predicted how these activities might be recorded in Earth's geological record.</p>



<p>Moreover, human activities have the potential to alter not only the <a href="https://www.earth.com/image/the-geysers-the-worlds-largest-geothermal-field/" target="_blank" rel="noreferrer noopener">deep subsurface fluids</a> but also the microbes that inhabit those depths. </p>



<p>Fluid movements can modify <a href="https://www.earth.com/news/life-in-the-extreme-microbial-activity-discovered-in-old-faithful/" target="_blank" rel="noreferrer noopener">microbial environments</a> through changes in water chemistry or by introducing new microbial communities from Earth's surface to the underground. </p>



<p><a href="https://www.earth.com/news/water-fracking-surged/">Hydraulic fracturing</a>, for example, can trigger sudden blooms of microbial activity in previously dormant deep rock formations.</p>



<h2 class="wp-block-heading">Earth's subsurface is still mostly a mystery</h2>



<p>Despite the significance of these findings, many unknowns remain about Earth's deep subsurface and the extent of human impact on this hidden realm. </p>



<p>"We need to use the deep subsurface as part of the solution for the climate crisis," emphasizes McIntosh. "Yet, we know more about the <a href="https://www.earth.com/news/lake-sediments-found-in-jezero-crater-hint-at-past-life-on-mars/" target="_blank" rel="noreferrer noopener">surface of Mars</a> than we do about water, rocks and life deep beneath our feet."</p>



<p>Continued research and exploration of this enigmatic zone are crucial for understanding the full scope of human influence on our planet and developing <a href="https://www.earth.com/news/international-day-of-zero-waste-a-global-commitment-to-a-sustainable-future/" target="_blank" rel="noreferrer noopener">sustainable strategies</a> for addressing the climate crisis. </p>



<p>While we strive to mitigate the visible effects of human activities on Earth's surface, we must not overlook the hidden impact that extends deep into the subsurface.</p>



<h2 class="wp-block-heading" id="h-protecting-what-lies-beneath">Protecting what lies beneath</h2>



<p>As we continue to explore and utilize Earth's deep subsurface in our efforts to combat climate change, we must remain mindful of the hidden impact our actions have on this enigmatic realm. </p>



<p>By studying the fluid dynamics, <a href="https://www.earth.com/news/climate-change-increases-threat-antimicrobial-resistance/" target="_blank" rel="noreferrer noopener">microbial communities</a>, and geological record beneath our feet, we can develop a deeper understanding of the complex interplay between human activities and the subterranean world. </p>



<p>This knowledge will be crucial in guiding our strategies for a sustainable future, ensuring that our solutions do not create unforeseen consequences in the depths below. </p>



<p>As we navigate the challenges of the climate crisis, we must approach the subsurface with a spirit of curiosity, responsibility, and respect, recognizing that the key to our success may lie in the mysteries that await us in Earth's hidden depths.</p>



<p>The full study was published in the journal <em><a href="https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2024EF004496" target="_blank" rel="noreferrer noopener">Earth's Future</a></em>.</p>



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Human activities also greatly harm Earth’s subsurface, not just the landmass

Earth's surface bears the visible scars of human activities, from...

<p>Rivers are not just pathways for water; they are dynamic forces that reshape the landscapes they traverse. Meandering <a href="https://www.earth.com/news/scientists-look-to-mars-to-help-clarify-how-river-paths-change-over-time/" target="_blank" rel="noreferrer noopener">rivers</a> carve intricate patterns into the Earth as they journey from mountainous regions to the sea, forming valleys, canyons, floodplains, and deltas. </p>



<p>Researchers from <a href="https://www.ucsb.edu/" target="_blank" rel="noreferrer noopener">UC Santa Barbara</a> have delved into the factors that influence how meandering rivers migrate across landscapes. The findings challenge some established theories and provide new insights into river behavior.</p>



<h2 class="wp-block-heading">Focus of the study</h2>



<p>“Meandering rivers move gradually across the floodplains, and this river movement presents socioeconomic risks along river corridors and regulates terrestrial biogeochemical cycles. Experimental and field studies suggest that fluvial sediment supply can exert a primary control on lateral migration rates of rivers,” wrote the researchers.</p>



<p>“However, we lack an understanding of the relative importance of environmental boundary conditions, such as floodplain vegetation and sediment supply, in setting the pace of river meandering across different environmental settings.”</p>



<h2 class="wp-block-heading" id="h-the-forces-shaping-meandering-rivers">The forces shaping meandering rivers</h2>



<p>The study was focused on two primary forces that affect the bends in meandering rivers: "bar push" and "bank pull."</p>



<p>Bar push occurs when sediment deposits inside a bend, pushing the river outward. Conversely, bank pull involves erosion on the opposite bank, which further exaggerates the bend. </p>



<p>Interestingly, the research suggests that sediment load - the amount of debris and minerals carried by rivers - plays a more significant role in this outward push than previously thought.</p>



<h2 class="wp-block-heading" id="h-global-trend-in-meandering-rivers">Global trend in meandering rivers </h2>



<p>Evan Greenberg, the lead researcher and a doctoral geography student, along with his advisor Professor Vamsi Ganti, compiled a comprehensive dataset covering 139 <a href="https://www.earth.com/video/the-lena-river-delta-from-space/" target="_blank" rel="noreferrer noopener">meandering</a> rivers worldwide. The team analyzed satellite imagery to observe how the paths of these rivers have shifted over time. </p>



<p>"We find a global-scale trend between the amount of sediment that rivers carry and how quickly they’re migrating, across all variables," explained Greenberg.</p>



<p>The analysis revealed that rivers laden with more sediment tend to migrate faster, a significant finding given that many of the world’s major waterways are meandering types. </p>



<p>These river migration patterns are crucial for effective environmental management and urban planning, especially as these waterways affect millions of people living in nearby floodplains.</p>



<h2 class="wp-block-heading" id="h-vegetation-s-role-in-stabilizing-rivers">Vegetation's role in stabilizing rivers</h2>



<p>Contrary to earlier studies that emphasized the stabilizing effects of vegetation, this new research shows that while vegetation does slow <a href="https://www.earth.com/news/river-profiles-climates/" target="_blank" rel="noreferrer noopener">river</a> migration, its impact is less significant than previously estimated.</p>



<p>Unvegetated rivers with higher sediment loads were found to migrate up to four times faster than those with similar dimensions but more vegetation.</p>



<h2 class="wp-block-heading" id="h-the-dynamics-of-meandering-river-patterns">The dynamics of meandering river patterns</h2>



<p>The interaction of bar push and bank pull creates the characteristic meandering pattern of these rivers. </p>



<p>"You can’t have one dominate the other in a meandering river," said Professor Ganti. He further noted the importance of a balanced interaction between these forces to prevent the transformation of meandering rivers into braided rivers, which can happen if the sediment supply is insufficient.</p>



<h2 class="wp-block-heading" id="h-dams-and-river-migration-a-unique-case-study">Dams and river migration: A unique case study</h2>



<p>The examination of rivers near <a href="https://www.earth.com/news/humans-have-caused-unprecedented-changes-to-rivers/">dams</a> provided an interesting case study within the research. Dams trap sediment but don't usually affect the vegetation, providing unique conditions to study how sediment load influences river migration. </p>



<p>The observations showed that downstream from dams, where rivers are sediment-starved, migration rates decrease notably.</p>



<h2 class="wp-block-heading" id="h-predicting-changes-and-managing-risks">Predicting changes and managing risks</h2>



<p>Looking ahead, the researchers plan to extend their analysis to more rivers and varied river types. The goal is to develop a model that predicts river migration through different landscapes, from their sources to their mouths. </p>



<p>This model could prove essential in predicting changes in river behavior due to environmental changes, such as sea-level rise, increased extreme weather events, and shifts in land use, which might lead to increased sediment loads.</p>



<p>In conclusion, understanding how meandering <a href="https://www.earth.com/news/international-day-of-action-for-rivers-lifelines-of-our-planet/" target="_blank" rel="noreferrer noopener">rivers</a> move is more than an academic pursuit— it's crucial for managing the risks associated with riverbank migration. </p>



<p>"More sediment means that rivers can do more stuff," said Professor Ganti, highlighting the dynamic and ever-changing nature of these fascinating systems. </p>



<p>This ongoing research into river dynamics will aid in the development of strategies to cope with future changes in these mighty rivers.</p>



<p>The study is published in the journal <em><a href="https://www.sciencedirect.com/science/article/pii/S0012821X24001079" target="_blank" rel="noreferrer noopener"><u>Earth and Planetary Science Letters</u></a></em>.</p>



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Study reveals new insights into the dynamics of meandering rivers

Rivers are not just pathways for water; they are dynamic...

Resistant,Bacteria,And,Superbug,Organism,Or,Mrsa,Medical,Healthcare,Concept

<p>The world is in trouble – have you ever considered that it's not just rising temperatures and natural disasters we need to worry about? <a href="https://www.earth.com/earthpedia-articles/climate-change/" target="_blank" rel="noreferrer noopener">Clima</a><a href="https://www.earth.com/news/survey-mother-nature-is-more-likely-to-solve-climate-change-than-geoengineering/" target="_blank" rel="noreferrer noopener">t</a><a href="https://www.earth.com/earthpedia-articles/climate-change/" target="_blank" rel="noreferrer noopener">e change</a> has a sinister accomplice: antimicrobial resistance (AMR), and together, they're a dangerous pair. </p>



<p>AMR refers to the increasingly worrisome trend of <a href="https://www.earth.com/news/beneficial-plant-bacteria-likely-to-decline-due-to-climate-change/" target="_blank" rel="noreferrer noopener">bacteria</a>, viruses, fungi, and parasites evolving to resist the very drugs designed to kill them.</p>



<h2 class="wp-block-heading" id="h-climate-change-drastic-impacts">Climate change drastic impacts</h2>



<p>Climate change is known as the threat multiplier for AMR. It has widespread effects that are making our superbug problem significantly worse. Here's how climate change is linked to antimicrobial resistance:</p>



<h3 class="wp-block-heading" id="h-a-warmer-world-means-more-illness">A warmer world means more illness</h3>



<p>Many disease-causing bacteria and other <a href="https://www.earth.com/news/can-soil-microbes-survive-climate-change/" target="_blank" rel="noreferrer noopener">microbes</a> have historically been limited by geography. Cooler temperatures prevented them from spreading extensively. Climate change disrupts these barriers. </p>



<p>Warmer temperatures allow these pathogens to survive further north or south of their original ranges, and at higher altitudes. </p>



<p>This means that diseases once confined to specific regions could emerge in new areas, posing risks to populations that may not have prior immunity or established medical protocols for treatment.</p>



<h3 class="wp-block-heading" id="h-stressed-ecosystems-breed-superbugs">Stressed ecosystems breed superbugs</h3>



<p>Disrupted water systems caused by <a href="https://www.earth.com/news/extreme-weather-has-increased-seasonal-insect-activity/" target="_blank" rel="noreferrer noopener">extreme weather</a> events, such as floods or droughts, can lead to contamination with sewage, agricultural runoff, or other sources carrying drug-resistant microbes. </p>



<p>This contaminated water can then spread these microbes to humans, animals, and crops, increasing the risk of infection and disease. </p>



<p>Additionally, changes in <a href="https://www.earth.com/news/cowspiracy-film-review/" target="_blank" rel="noreferrer noopener">animal agriculture</a> practices, often driven by the need to adapt to extreme weather, can lead to overcrowding or unsanitary conditions. </p>



<p>This creates a breeding ground for drug-resistant microbes to evolve and spread rapidly within animal populations.</p>



<h2 class="wp-block-heading" id="h-more-infections-more-antibiotics-more-resistance">More infections, more antibiotics, more resistance</h2>



<p><a href="https://www.earth.com/news/iss-climate-change/" target="_blank" rel="noreferrer noopener">Climate</a> change disrupts ecosystems and weather patterns, leading to several consequences that can increase the spread of diseases caused by various microbes. Warmer temperatures, for example, can allow microbes that thrive in warmer environments to expand their geographic range. </p>



<p>Additionally, extreme weather events like floods and droughts can disrupt water systems and sanitation infrastructure, creating ideal breeding grounds for microbes. These factors contribute to a rise in the number of infections and outbreaks of diseases.</p>



<p>The natural response to this increase in illnesses is often an increased reliance on antibiotics, powerful drugs that target and kill specific microbes. However, this increased use of antibiotics creates a selective pressure on the microbial populations. </p>



<p>As with any population under pressure, some microbes will develop adaptations that allow them to survive antibiotic exposure. These adaptations are the mechanisms of <a href="https://www.earth.com/news/antibiotic-resistance-increasing-enterococci-looming-global-crisis/" target="_blank" rel="noreferrer noopener">antibiotic resistance</a>.</p>



<h2 class="wp-block-heading" id="h-real-world-effects-of-climate-change-on-antimicrobial-resistance">Real-world effects of climate change on antimicrobial resistance</h2>



<p><a href="https://www.earth.com/news/global-temperature-increase-2023-blew-past-all-climate-models/" target="_blank" rel="noreferrer noopener">Climate</a> change is about subtle shifts at the microbial level that are already having serious impacts on our health. The examples below are a snapshot of what could become a widespread crisis.</p>



<h3 class="wp-block-heading" id="h-bacteria">Bacteria</h3>



<p>Bacteria like&nbsp;<em>Campylobacter</em>&nbsp;and&nbsp;<em>Salmonella</em>, responsible for a significant number of food poisoning cases, are flourishing in warming water. Water systems in homes, food processing, and the environment at large are becoming more hospitable.</p>



<p>Contaminated water means these bacteria spread more easily. They can end up on fresh produce, in meat and poultry during processing, and even in drinking water. The warmer the water, the more these bacteria multiply, increasing our risk of getting sick.</p>



<h3 class="wp-block-heading" id="h-fungus">Fungus</h3>



<p><em>Candida auris</em>, previously not a major issue for humans, has emerged as a serious threat. One reason is its newfound ability to tolerate warmer and saltier conditions, likely an adaptation driven by the environment changing due to <a href="https://www.earth.com/news/understanding-the-impact-of-climate-change-at-the-national-level/" target="_blank" rel="noreferrer noopener">climate</a> change.</p>



<p>This fungus is highly drug-resistant and can cause severe infections, particularly in already-sick patients. As the world warms and coastal areas change, this fungus could become much more common, posing risks to hospitals and people with weakened immune systems.</p>



<h3 class="wp-block-heading" id="h-world-threat">World threat</h3>



<p>Regions with rising average temperatures are also seeing more infections caused by antibiotic-resistant strains of&nbsp;<em>E.coli</em>. This correlation, if seen elsewhere in the world, would mean serious trouble. Infections that were once easy to treat may become a major health challenge.</p>



<p>“Climate change compromises the ecological and environmental integrity of living systems and enables pathogens to increasingly cause disease. The impact on water systems, food-producing animals and crops threatens global food supply," explained Professor Sabiha Essack, South African Research Chair in Antibiotic Resistance and One Health at the Antimicrobial Research Unit, <a href="https://ww3.ukzn.ac.za" target="_blank" rel="noreferrer noopener">University of KwaZulu-Natal</a>. </p>



<p>"Human activities associated with population growth and transport, together with climate change increases antibiotic resistance and the spread of waterborne and vector- borne diseases of humans, animals and plants,” Essack concluded.</p>



<h2 class="wp-block-heading" id="h-melting-ice-from-climate-change-drives-antimicrobial-resistance">Melting ice from climate change drives antimicrobial resistance</h2>



<p>Professor Essack's research raises a critical point: as our planet warms, sea levels are rising at unprecedented rates. This isn't just a threat to coastal communities; it also unlocks a hidden danger – the thawing of permafrost. </p>



<p>Permafrost is permanently frozen ground, mostly in the Arctic regions, that has been like a giant natural deep freezer for millennia.</p>



<p><a href="https://www.earth.com/news/time-traveling-pathogens-from-melting-permafrost-pose-great-risk-to-the-earth/" target="_blank" rel="noreferrer noopener">Melting permafrost</a> releases previously frozen soil, organic matter, and even trapped organisms. These organisms, including ancient microbes, have been entombed for vast stretches of time. </p>



<p>Some of these microbes may carry genes for antibiotic resistance, genes they never needed in their frozen state but which could now pose a serious threat.</p>



<p>The released microbes and their antibiotic resistance genes can <a href="https://www.earth.com/news/how-do-deadly-microbes-travel-around-the-world-so-quickly/" target="_blank" rel="noreferrer noopener">travel far and wide</a>. Ocean currents can carry them across vast distances, potentially introducing them to new ecosystems. </p>



<p>Even ships can act as unintentional transporters, carrying microbes in ballast water (water taken on board to ensure stability) that is then released in different ports.</p>



<p>The emergence of antibiotic-resistant microbes from permafrost adds another layer of complexity to the already concerning issue of AMR. </p>



<p>These ancient microbes may have unique resistance mechanisms, posing new challenges for our existing antibiotics. This further emphasizes the need for international collaboration and research to address this evolving threat.</p>



<p>While rising sea levels grab headlines, the hidden consequences of permafrost thaw are a stark reminder of the interconnectedness of our planet. <a href="https://www.earth.com/news/38-trillion-dollars-per-year-economic-losses-expected-from-climate-change/" target="_blank" rel="noreferrer noopener">Climate</a> change disrupts these delicate natural systems, and the consequences can be far-reaching and long-lasting.</p>



<h2 class="wp-block-heading" id="h-halting-climate-change-and-antimicrobial-resistance">Halting climate change and antimicrobial resistance</h2>



<p>Climate change alone is bad enough, but how we respond to it exacerbates the AMR crisis. Population growth, increased travel, and shifts in agriculture in response to disasters lead to more disease transmission and inappropriate use of antibiotics.</p>



<p>"Climate change has facilitated movement and proliferation of AMR. To deal with this threat, we will need unequivocal political leadership and commitment; strong global and local policy frameworks and governance; evidence-based, innovative 'One Health' solutions, and implementation research to adapt successful interventions to country contexts," explains Prof Essack.</p>



<p>“These partnerships must include a wide range of societal interests that will suspend interests of individual sectors for the public good. Initiatives that aim to make progress in climate change or AMR should join forces and highlight each other to make clear their mutual benefits," she concluded.</p>



<p>It sounds dire, but it doesn't mean we're powerless. Calling on our leaders to prioritize climate action and support the "One Health" approach (which recognizes the interconnectedness of human, animal, and environmental health) are crucial steps.</p>



<p>Dealing with both climate change and antibiotic resistance isn't going to be easy, but it's time we all woke up to this interconnected threat. Understanding the problem is the first step toward finding those smart, innovative solutions we need.</p>



<p>The study is part of <em>ESCMID Global Congress (formerly ECCMID) Barcelona, 27-30 April</em>.</p>



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Climate change fuels the rise of global antimicrobial resistance

The world is in trouble – have you ever considered...

<p>Artificial <a href="https://www.earth.com/news/are-artificial-sweeteners-safe-the-debate-is-heating-up/" target="_blank" rel="noreferrer noopener">sweeteners</a> are appealing to those who want a sweet taste without the calories or health concerns associated with sugar. Yet, emerging research continues to uncover potential gut harm caused by sugar substitutes, such as neotame. </p>



<p>A new study from Anglia Ruskin University (<a href="https://www.aru.ac.uk" target="_blank" rel="noreferrer noopener">ARU</a>) sheds light on neotame, a relatively newer artificial sweetener, and its shocking effects on the gut.</p>



<h2 class="wp-block-heading" id="h-how-neotame-wrecks-havoc-on-the-gut-microbiome">How neotame wrecks havoc on the gut microbiome</h2>



<p>According to the research, neotame directly harms the gut's protective lining and changes the behavior of good gut bacteria. This can weaken the gut barrier and disrupt the gut microbiome. These changes affect digestion, immune health, and can lead to various health problems.</p>



<h3 class="wp-block-heading" id="h-neotame-s-impact-on-epithelial-cells-in-the-gut">Neotame's impact on epithelial cells in the gut</h3>



<p>Research indicates that neotame has the capacity to directly induce cell death in the epithelial cells that line your intestinal walls. The exact mechanism by which this occurs is still being investigated but might involve the disruption of essential cellular functions.</p>



<p>The epithelial lining of the gut plays a crucial role in maintaining a physical barrier between the contents of your digestive tract and your internal systems. </p>



<p>This barrier is essential for both nutrient absorption and for protecting your body from harmful toxins, pathogens, and other substances found within the gut. Neotame's ability to kill these cells directly undermines the integrity of this barrier.</p>



<h3 class="wp-block-heading" id="h-neotame-s-disruption-of-gut-microbes">Neotame's disruption of gut microbes</h3>



<p>Your gut is home to trillions of microorganisms, including bacteria like <em>E.coli</em> and <em>E. faecalis</em>. In a healthy state, many of these bacteria contribute to digestive processes and play a role in immune system support. However, exposure to neotame appears to induce negative changes in these bacteria.</p>



<p>Neotame can cause normally beneficial gut bacteria to become harmful. This includes increased adherence (sticking) to the gut wall, the ability to invade the gut lining, and the potential to break through the gut barrier and enter the bloodstream.</p>



<p>If harmful bacteria escape the confines of the gut and reach the bloodstream, this can cause sepsis - a life-threatening condition where the body has an extreme inflammatory response to infection.</p>



<h2 class="wp-block-heading" id="h-consequences-of-a-neotame-compromised-gut">Consequences of a Neotame compromised gut</h2>



<p>Your gut is often called the "second brain." It's home to trillions of microorganisms, collectively known as your gut microbiome, that have a profound influence on your overall well-being. Here's what might happen when neotame disrupts your delicate gut ecosystem:</p>



<h3 class="wp-block-heading" id="h-irritable-bowel-syndrome-ibs">Irritable bowel syndrome (IBS)</h3>



<p>As discussed, damage to the gut barrier can lead to increased intestinal permeability (often called "leaky gut"). This allows unwanted substances to pass through the gut lining and into the body, potentially triggering inflammation and immune responses that exacerbate IBS symptoms.</p>



<p>Research suggests that people with IBS often have altered gut microbiota compared to healthy individuals. An imbalance between beneficial and harmful gut bacteria can contribute to digestive distress, including abdominal pain, bloating, diarrhea, and constipation.</p>



<h3 class="wp-block-heading" id="h-sepsis">Sepsis</h3>



<p>A compromised gut barrier allows harmful bacteria to potentially escape from the digestive tract and enter the bloodstream. This translocation of bacteria can trigger a severe systemic inflammatory response known as sepsis.</p>



<p>Sepsis is a medical emergency. When not promptly treated, it can progress to septic shock, leading to multiple organ failure and death.</p>



<h3 class="wp-block-heading" id="h-metabolic-and-inflammatory-disorders">Metabolic and inflammatory disorders</h3>



<p>The gut microbiome plays a significant role in regulating various metabolic processes, including energy harvesting from food and blood sugar control. An altered gut microbiome can contribute to metabolic dysregulation, leading to issues such as insulin resistance (a precursor to type 2 diabetes).</p>



<p>Disruptions in the gut microbiome from neotame can promote low-grade, chronic inflammation throughout the body. This sustained inflammation is a key contributor to the development of numerous chronic health conditions, including metabolic disorders, cardiovascular disease, and possibly even some forms of cancer.</p>



<h2 class="wp-block-heading" id="h-neotame-s-place-among-other-artificial-sweeteners">Neotame's place among other artificial sweeteners</h2>



<p>This isn't the first time artificial sweeteners have been under scrutiny. “There is now growing awareness of the health impacts of <a href="https://www.earth.com/news/artificial-sweeteners-obesity-diabetes/" target="_blank" rel="noreferrer noopener">sweeteners</a> such as saccharin, sucralose and aspartame, with our own previous work demonstrating the problems they can cause to the wall of the intestine and the damage to the ‘good bacteria’ which form in our gut," said study senior author Dr. Havovi Chichger.</p>



<p>For people struggling with weight control, diabetes, or glucose intolerance, artificial sweeteners can be a tool. But the research on neotame and other <a href="https://www.earth.com/news/artificial-sweetener-has-been-linked-to-anxiety/" target="_blank" rel="noreferrer noopener">sweeteners</a> paints a complex picture. While they reduce sugar intake, the long-term consequences of their effect on the gut remain a significant health concern.</p>



<h2 class="wp-block-heading" id="h-things-to-consider">Things to consider </h2>



<p>Before using any artificial <a href="https://www.earth.com/news/artificial-sweeteners-linked-to-increased-risk-of-cancer/" target="_blank" rel="noreferrer noopener">sweetener</a>, consider the following:</p>



<h3 class="wp-block-heading" id="h-moderation-is-key">Moderation is key</h3>



<ul>
<li><strong>Small amounts if needed:</strong>&nbsp;If you decide to incorporate artificial sweeteners into your diet, it's crucial to do so with extreme caution. Using them sparingly minimizes potential exposure and reduces the risk of negative effects on gut health.</li>



<li><strong>Retraining your palate:</strong>&nbsp;Our taste preferences are adaptable. Gradually reducing your intake of artificial sweeteners and highly sweetened foods allows your taste buds to adjust. Over time, you'll appreciate and enjoy the subtle sweetness of naturally occurring sugars found in fruits, vegetables, and some dairy products.</li>
</ul>



<h3 class="wp-block-heading" id="h-read-food-labels">Read food labels</h3>



<ul>
<li><strong>Ingredient awareness:</strong>&nbsp;Scrutinize ingredient lists carefully. Artificial sweeteners like neotame, sucralose, aspartame, and others can appear in a surprising variety of products, including diet drinks, processed snacks, chewing gum, and even seemingly "healthy" bars or beverages.</li>



<li><strong>Hidden names:</strong>&nbsp;Artificial sweeteners can go by many names. Be vigilant in spotting them on food labels to make more informed choices about what you consume.</li>
</ul>



<h3 class="wp-block-heading" id="h-natural-alternatives">Natural alternatives</h3>



<ul>
<li><strong>Stevia and monk fruit:</strong>&nbsp;These plant-derived sweeteners have little to no impact on blood sugar levels, making them potentially safer options. However, some individuals may find they have an aftertaste or digestive sensitivities to them.</li>



<li><strong>Use with caution:</strong>&nbsp;Even natural <a href="https://www.earth.com/news/artificial-sweeteners-health-issues/" target="_blank" rel="noreferrer noopener">sweeteners</a> shouldn't be consumed in excess. The goal is to reduce your overall reliance on overly sweet flavors and to appreciate the inherent sweetness of whole foods.</li>
</ul>



<h3 class="wp-block-heading" id="h-talk-to-your-doctor">Talk to your doctor</h3>



<ul>
<li><strong>Personalized advice:</strong>&nbsp;Seeking guidance from your doctor or a registered dietitian is essential, especially if you have underlying health conditions like diabetes or any digestive issues.</li>



<li><strong>Individualized approach:</strong>&nbsp;They can help you develop a dietary plan that addresses your specific needs and concerns while taking into account potential risks associated with artificial sweeteners.</li>
</ul>



<p>The evolving understanding of the complex relationship between artificial sweeteners like neotame and gut health underscores the value of a whole-foods based diet. This recent research on neotame is another reminder that what we put into our bodies has far-reaching effects beyond simple taste and metabolism. </p>



<p>Prioritizing healthy, unprocessed foods is the best way to support your gut microbiome and your overall well-being for the long term.</p>



<p>The study is published in the journal <em><a href="https://www.frontiersin.org/articles/10.3389/fnut.2024.1366409/full" target="_blank" rel="noreferrer noopener">Frontiers in Nutrition</a></em>.</p>



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Artificial sweetener neotame has shocking effects on gut health

Artificial sweeteners are appealing to those who want a sweet...

<p>Ever felt like that 30-minute workout dragged on like an agonizingly slow scene in a bad movie?  It’s not your imagination. Turns out, <a href="https://www.earth.com/news/this-exercise-routine-can-cut-your-risk-of-early-death-in-half/" target="_blank" rel="noreferrer noopener">exercise</a> can warp your sense of time. A new study adds an exciting twist to the story.</p>



<h2 class="wp-block-heading" id="h-exercise-and-time-perception">Exercise and time perception</h2>



<p>A recent study found that our internal sense of time stretches out or slows down for many individuals during <a href="https://www.earth.com/news/women-achieve-greater-benefits-from-exercise-with-less-effort/" target="_blank" rel="noreferrer noopener">exercise</a>. This feeling is more pronounced during exercise than when we're at rest, either before or after a workout.</p>



<p>The study is innovative because it looks specifically at how time perception changes during the kind of intense, self-regulated exercise that mimics real-life athletic competition. Previous research often used fixed-intensity exercise protocols, which weren't as reflective of the dynamic nature of sports or competitive workouts. This makes the findings more applicable to those situations.</p>



<h2 class="wp-block-heading" id="h-einstein-was-right-time-nbsp-is-nbsp-relative">Einstein was right – Time&nbsp;<em>is</em>&nbsp;relative</h2>



<p>Albert Einstein was a brilliant physicist who revolutionized our understanding of time and space. His theory of relativity suggests that the passage of time isn't absolute, but instead depends on the observer's frame of reference and the influence of gravity.</p>



<p>Einstein's thought experiment illustrated the subjective nature of time. A moment can seem to last forever in unpleasant situations, while time seems to rush by when we're engaged in enjoyable experiences. </p>



<p>This workout study demonstrates that physical exertion can distort our perception of time, making it feel slower than usual.</p>



<h2 class="wp-block-heading" id="h-how-does-exercise-change-the-time-speed">How does exercise change the time speed?</h2>



<p>Scientists are still figuring out the exact details of how several factors interact to distort time perception during <a href="https://www.earth.com/news/exercise-significantly-lowers-heart-disease-risk-by-reducing-stress/" target="_blank" rel="noreferrer noopener">exercise</a>. It's a complex question with no simple answer yet. They propose the following theories: </p>



<h3 class="wp-block-heading" id="h-theory-1-the-brain-gets-overloaded">Theory 1: The brain gets overloaded</h3>



<p>During exercise, your brain receives a massive surge of information from your body. That means a lot to process for your brain's attention and control centers.</p>



<p>Your brain has to monitor your breathing rate, adjust your heart rate, coordinate complex muscle movements, and manage any feelings of pain or fatigue. All this effort could divert your brain's resources away from its usual time-tracking mechanisms. </p>



<h3 class="wp-block-heading" id="h-theory-2-it-s-all-about-the-chemicals">Theory 2: It's all about the chemicals</h3>



<p>Physical exertion triggers significant changes in your body's chemistry. A rush of hormones and neurotransmitters floods your system.</p>



<p>These are the brain's chemical messengers. Exercise increases the release of neurotransmitters like dopamine, endorphins, and adrenaline, which impact mood, arousal, and focus.</p>



<p>This change in brain chemistry could also affect areas related to our perception of time. It's like those chemicals change the "clock speed" of how your brain is operating, which could make time feel like it's moving faster or slower.</p>



<h2 class="wp-block-heading" id="h-does-competition-affect-time-perception-in-exercise">Does competition affect time perception in exercise?</h2>



<p>The study distinguishes itself by investigating a crucial question: Does the presence of competition alter how we perceive time during exercise? Previous research hadn't fully explored this aspect of <a href="https://www.earth.com/news/exercise-all-types-proven-to-ease-depression-symptoms/" target="_blank" rel="noreferrer noopener">exercise</a> psychology.</p>



<p>To test this, the researchers recruited a group of moderately to highly active individuals. Participants engaged in cycling trials on specialized stationary bikes designed to simulate a competitive race environment. The trials varied in condition: some were solo rides, while others involved either a non-responsive virtual competitor or a virtual opponent who actively changed pace throughout the race.</p>



<p>Surprisingly, the findings showed that the presence of virtual competitors had little to no impact on the participants' perception of time. This suggests that the primary factor influencing time distortion is the act of physical exertion itself, rather than the psychological pressure or excitement of a competitive setting.</p>



<p>“The take home message for this study is that our perception of time is indeed impacted by exercise,” said study author <a href="https://www.canterbury.ac.uk/people/andrew-edwards" target="_blank" rel="noreferrer noopener">Andrew Mark Edwards</a>, a professor and Head of School for Psychology &amp; Life Sciences at <a href="https://www.canterbury.ac.uk" target="_blank" rel="noreferrer noopener">Canterbury Christ Church University</a>.</p>



<p>“This could be useful information in terms of accurately pacing sport and exercise activities such as devising strategies to mitigate periods where time appears to drag and can be demotivating."</p>



<h2 class="wp-block-heading" id="h-what-does-this-mean-for-daily-workouts">What does this mean for daily workouts?</h2>



<p>Most people who exercise regularly have experienced those moments where time seems to crawl, especially during challenging parts of a workout. This feeling of time slowing down can be incredibly demotivating and make it tempting to cut a workout short.</p>



<p>The key findings of this study could pave the way for new strategies to help both athletes and everyday gym-goers overcome this mental hurdle. The goal is to develop strategies specifically designed to combat those periods where our perception of time becomes distorted, making exercise feel less enjoyable and harder to sustain.</p>



<p>Intuitively, you might assume that the harder a workout feels, the more time would seem to drag. However, this study offers a surprising insight: there doesn't appear to be a direct relationship between your subjective rating of exertion (how intensely you're working out) and how much time seems to slow down. This means that even during less intense periods of exercise, your perception of time can still become warped.</p>



<h2 class="wp-block-heading" id="h-future-directions">Future directions</h2>



<p>"This was a study of recreationally active participants in only one mode of <a href="https://www.earth.com/news/how-much-exercise-reduces-the-risk-of-premature-death/" target="_blank" rel="noreferrer noopener">exercise</a> so the results ought to be considered in the context of that activity/population," Edwards explained. "More work is required to see if this is widely applicable." The team will explore this further with different types of athletes and exercise.</p>



<p>Beyond the workout world, this research might even be useful when folks are using exercise as therapy. "The main strands of the work are to see how we can motivate people to engage with exercise and avoid/mitigate negative associations with time appearing to move slowly," said Edwards.</p>



<p>Sweat sessions bend your mind in more ways than one. If your workouts feel tortuously long sometimes, you're not alone. Hopefully, this research will help us come up with ways to make exercise more enjoyable.</p>



<p>The study is published in the journal&nbsp;<em><a href="https://onlinelibrary.wiley.com/doi/10.1002/brb3.3471" target="_blank" rel="noreferrer noopener">Brain and Behavior</a></em>.</p>



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<p>-----</p>

Slow motion: Exercise changes our perception of time

Ever felt like that 30-minute workout dragged on like an...

<p>Life in the wilds of the Yukon is a relentless test of survival. For the red squirrels that inhabit this territory, danger lurks around every corner - freezing temperatures, scarce resources, and hungry predators. So how do <a href="https://www.earth.com/news/southern-flying-squirrel-spotted-after-more-than-four-decades/" target="_blank" rel="noreferrer noopener">squirrels</a> manage the traumas? </p>



<p>Why do some squirrels live longer, healthier lives than others? Scientists are discovering fascinating answers that even have implications for our understanding of human stress and resilience.</p>



<h2 class="wp-block-heading" id="h-early-traumas-shorter-squirrel-lives">Early traumas, shorter squirrel lives</h2>



<p>Lauren Petrullo, a researcher at the <a href="https://www.arizona.edu" target="_blank" rel="noreferrer noopener">University of Arizona</a>, is deeply involved in studying the survival factors of red squirrels. Her recent study highlights a significant finding: young red squirrels that encounter numerous traumas during their first year typically experience a reduction in their adult lifespan. </p>



<p>Specifically, in the challenging conditions of the Yukon, such early life stress leads to an average lifespan reduction of at least 14 percent. This research underscores the critical impact of early developmental conditions on the longevity of these animals.</p>



<p>"The ecosystem red squirrels inhabit in this region is unique. Every three to seven years, their favorite food – seed from cones of white spruce trees – is produced in superabundance during what we call a food boom," Petrullo said.</p>



<p>"We found that these booms, even though rare, can interrupt the biological embedding of early-life adversity. If a squirrel had a harsh first year of life, if they were lucky enough to experience a food boom in their second year of life, they lived just as long – if not longer – in spite of early-life adversity."&nbsp;</p>



<h2 class="wp-block-heading" id="h-what-is-a-food-boom">What is a food boom?</h2>



<p>A food boom is a sudden and significant increase in the availability of food resources within an animal's environment. There are multiple causes behind food booms. Some food sources experience cyclical booms and busts. For example, trees that produce nuts or seeds might only have huge yields every few years.</p>



<p>Additionally, favorable weather conditions can lead to increased plant growth, insect populations, or other food sources for animals. The removal of a predator or the introduction of a new prey species can disrupt the balance and make more food available for some animals.</p>



<h2 class="wp-block-heading" id="h-food-boom-benefits">Food boom benefits</h2>



<p>Even with a rough beginning, plentiful food sources can repair damage caused by early-life stress in animals. The research shows that squirrels who had difficult early lives, and later experienced a surge in food availability,  had lifespans comparable to (or even exceeding) squirrels who never had to experience hardship. </p>



<p>This implies that the benefits of a food boom extend beyond simple nutrition. A possible explanation is that abundant food favorably alters the animal's surroundings by decreasing the need for competition and ultimately improving chances of survival.</p>



<h2 class="wp-block-heading" id="h-study-significance">Study significance</h2>



<p>"Our findings in red squirrels echo what we know about how early-life adversity can shorten adult lifespan in humans and other primates," said Petrullo. </p>



<p>The main takeaway from this research is the concept of resilience. Similar to squirrels, individuals vary in their ability to cope with the lingering effects of early life trauma. The study proposes that later positive experiences are significant in determining the extent to which early stress affects an individual.</p>



<p>Squirrels are often subjects in laboratory studies due to their physiological similarities to humans. However, Lauren Petrullo emphasizes the value of studying these animals in their natural surroundings. This approach provides a clearer view of how stress, resilience, and environmental factors interact dynamically outside the controlled conditions of a lab.</p>



<h2 class="wp-block-heading" id="h-climate-change-a-new-challenge-to-squirrel-trauma">Climate change: A new challenge to squirrel trauma</h2>



<p>The survival strategies of red squirrels, particularly their reliance on periodic food booms, have developed to thrive within a specific climatic context. Unfortunately, the escalating issue of global <a href="https://www.earth.com/news/how-are-squirrels-adapting-to-climate-change/" target="_blank" rel="noreferrer noopener">warming</a> poses a significant threat to these patterns. </p>



<p>Rising temperatures have the potential to disrupt the timing and abundance of these crucial food booms. If these natural events become less frequent or less predictable, <a href="https://www.earth.com/news/climate-change-affects-ground-squirrels-in-unexpected-ways/" target="_blank" rel="noreferrer noopener">squirrels</a> that encounter significant challenges early in life may find themselves even more vulnerable to the adverse effects of their harsh environments. This could result in increased mortality rates and impact the overall population stability of the species.</p>



<p>"As food boom patterns begin to change, the pathways that connect early-life experiences and lifespan may change as well, potentially offering important insight into how animals may adapt to increasingly challenging environments," said Petrullo.</p>



<p>This research isn't just about squirrels and their trauma. It's a captivating story about survival, where even in harsh conditions, there's always hope. Just like a lucky food boom can alter a squirrel's fate, our own paths might hold life-changing opportunities. </p>



<p>As scientists continue to study these resilient creatures, we may not only discover the secrets to their success, but also gain valuable insights to enhance our own well-being.</p>



<p>The study is published in the journal <em><a href="https://royalsocietypublishing.org/doi/10.1098/rspb.2023.2681" target="_blank" rel="noreferrer noopener">Proceedings of the Royal Society B Biological Sciences</a></em>.</p>



<p>-----</p>



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<p>-----</p>

Early trauma cuts life short for squirrels, but this can be reversed

Life in the wilds of the Yukon is a relentless...

<p>As our planet warms and urban areas expand, the threat of mosquito-borne diseases such as malaria and dengue is escalating, reaching regions previously untouched by these dangerous illnesses. </p>



<p>Now, with over half of the global population at risk, these <a href="https://www.earth.com/news/tick-mosquito-borne-disease-spreading/" target="_blank" rel="noreferrer noopener">diseases</a> have quickly become a critical concern worldwide.</p>



<h2 class="wp-block-heading" id="h-the-global-spread-of-disease-vectors">The global spread of disease vectors</h2>



<p><a href="https://www.earth.com/news/how-mosquitoes-find-tasty-humans-from-hundreds-of-meters-away/" target="_blank" rel="noreferrer noopener">Mosquitoes</a>, the primary vectors for diseases like malaria and dengue, are finding suitable habitats far beyond their traditional tropical and subtropical locales. This expansion is due in part to longer and hotter seasons that allow mosquito larvae to survive and thrive in new areas. </p>



<p>As these insects invade places like northern Europe, Asia, North America, and Australia, local populations face increased risks - often in areas where people lack immunity and public health systems are unprepared.</p>



<h2 class="wp-block-heading" id="h-insights-from-the-front-lines-of-research">Insights from the front lines of research</h2>



<p>At the upcoming ESCMID Global Congress in Barcelona, <a href="https://www.icrea.cat/" target="_blank" rel="noreferrer noopener">ICREA</a> Professor Rachel Lowe will present her latest findings on this issue. </p>



<p>Professor Lowe, who leads the global health resilience group at the Barcelona Supercomputing Center in Spain, will discuss the dramatic shifts in vector-borne disease patterns and the essential role of enhanced surveillance and early warning systems.</p>



<p>"Droughts and floods linked to <a href="https://www.earth.com/news/climate-change-is-great-for-mosquitoes/" target="_blank" rel="noreferrer noopener">climate change</a> can lead to greater transmission of the virus, with stored water providing additional mosquito breeding sites," noted Professor Lowe. Her research in the Caribbean shows that extreme climate conditions such as drought followed by excessive rainfall can significantly increase the likelihood of dengue outbreaks. </p>



<p>These findings underscore the need for comprehensive assessments of vector-borne disease risks and preparedness for future outbreaks.</p>



<h2 class="wp-block-heading" id="h-the-rise-of-dengue">The rise of dengue</h2>



<p>Dengue, which is spread by day-biting mosquitoes, has dramatically increased in spread and frequency. </p>



<p>Since 2000, the most hospitable years for dengue transmission have facilitated the mosquito's invasion into 13 European countries, including France, Italy, and Spain, with local disease outbreaks reported as recently as 2023.</p>



<p>Furthermore, the number of global <a href="https://www.earth.com/news/dengue-fever-modified-mosquitoes/" target="_blank" rel="noreferrer noopener">dengue</a> cases reported surged from 500,000 in 2000 to over five million in 2019. This makes dengue the most rapidly spreading mosquito-borne viral disease in the world.</p>



<h2 class="wp-block-heading" id="h-projecting-future-mosquito-disease-outbreaks">Projecting future mosquito disease outbreaks</h2>



<p>The data suggests a daunting future if current trends continue. With <a href="https://www.earth.com/news/global-warming-dengue-fever/" target="_blank" rel="noreferrer noopener">global warming</a> and population growth proceeding unchecked, projections are increasingly alarming. They indicate that up to 4.7 billion additional people could be at risk of contracting malaria and dengue by the end of the century.</p>



<p>On the other hand, if global warming is limited to an ambitious goal of a 1°C increase, the number of people at risk could be significantly reduced, although it would still be substantial.</p>



<h2 class="wp-block-heading" id="h-the-role-of-el-nino-in-mosquito-disease-outbreaks">The role of el niño in mosquito disease outbreaks </h2>



<p>El Niño events, which occur every 2-7 years, exacerbate these issues by creating hotter and wetter conditions that are ideal for mosquito breeding.</p>



<p>Professor Lowe highlights the direct link between these climatic fluctuations and disease outbreaks. Specifically, the Zika pandemic in Brazil, which emerged during an El Niño phase in 2015, was a direct result of climate conditions.</p>



<p>Furthermore, the current strength of El Niño suggests that these challenging conditions are likely to continue.</p>



<h2 class="wp-block-heading" id="h-climate-change-and-mosquito-borne-diseases">Climate change and mosquito-borne diseases</h2>



<p>Professor Lowe stresses the urgency of addressing climate change to mitigate the spread of these diseases. "With climate change seeming so difficult to address, we can expect to see more cases and possibly deaths from diseases such as dengue and malaria across mainland Europe." </p>



<p>Therefore, proactive measures, including robust surveillance systems and early interventions, are crucial to preventing outbreaks.</p>



<p>Researchers are now using advanced technologies to better anticipate disease outbreaks. These technologies include supercomputers, drones for identifying breeding sites, and community-based reporting systems to direct resources effectively.</p>



<p>"By analyzing weather patterns and gathering information from local communities and health officials, we are hoping to give communities time to prepare and protect themselves," said Professor Lowe. </p>



<h2 class="wp-block-heading" id="h-united-efforts-are-needed">United efforts are needed </h2>



<p>Ultimately, the most effective strategy to reduce the risk of disease spread is to dramatically curb emissions and address the root causes of climate change.</p>



<p>As mosquito-borne diseases expand their reach, the need for global cooperation and innovative solutions has never been greater. </p>



<p>Through informed research, proactive planning, and international collaboration, we can help to shield vulnerable populations from these escalating health threats.</p>



<p>-----</p>



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Mosquito-borne diseases are a growing threat in a warming world

As our planet warms and urban areas expand, the threat...

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<p>Today’s <strong>Video of the Day</strong> from the <a href="https://www.esa.int/">European Space Agency</a> features Nushagak Bay, a large estuary in southwest Alaska. Nushagak runs mainly north to south and exits in Bristol Bay, a large body of water in the Bering Sea.</p>



<p>"The bay is primarily fed by the Nushagak River, which begins in the Alaska Range and flows southwest approximately 450 km. The bay is also fed by several additional rivers including the Wood, Igushik, Snake and Weary rivers," says ESA.</p>



<p>"The dark colors of the Nushagak River are most likely due to tannins or lignins (chemical substances found in plants). Tannins and lignins from roots, leaves, seeds, bark and soil can leach into the water and give it a brown or even black colour. The sediments then flow southwards where it is mixed with the bluer waters of the bay."</p>



<p><em>Video/ Image Credit: ESA</em></p>



<p><em>-</em><em>--</em></p>



<p><em>By </em><a href="http://csexton@earth.com"><em>Chrissy Sexton</em></a><em>, </em><a href="https://www.earth.com/staff/"><em>Earth.com</em></a><em> Staff Writer</em></p>

Nushagak Bay in southwest Alaska

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<p>Today's <strong>Video of the Day</strong> from the <a href="https://www.acs.org/">American Chemical Society</a> (ACS) reveals that proteins on flu viruses are actually flexible, tilting and waving in a “breath-like” motion. According to the experts, these proteins could be used to better defend against the flu.</p>



<p>"The main antigenic targets of influenza virus are two surface glycoproteins, hemagglutinin (HA) and neuraminidase (NA). Whereas the structural and dynamical properties of both glycoproteins have been studied previously, the understanding of their plasticity in the whole-virion context is fragmented," wrote the researchers.</p>



<p>To investigate, the team conducted detailed simulations of the influenza A H1N1 virion, or the swine flu. The experts concluded that the visualizations show many new vulnerable states of flu viruses, which could improve future vaccines and antiviral drugs.</p>



<p><em>Video/ Image Credit: American Chemical Society&nbsp;</em></p>



<p><em>-</em><em>--</em></p>



<p><em>By </em><a href="mailto:csexton@earth.com"><em>Chrissy Sexton</em></a><em>, </em><a href="https://www.earth.com/staff/"><em>Earth.com</em></a><em> Editor</em></p>



<p>Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.</p>

Flu viruses are more flexible than expected

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<p>Today’s <strong>Video of the Day</strong> from the <a href="https://www.esa.int/">European Space Agency</a> features Lake Trasimeno, which is located west of Perugia in central Italy. It is the fourth largest lake in the country. While Trasimeno’s water level varies, it has a maximum depth of approximately six meters.&nbsp;</p>



<p>"In this Copernicus Sentinel-2 image, captured on 6 August 2022, the lake’s emerald green colour is likely due to the presence of phytoplankton. Streaks in the water, particularly visible in the west, indicate the presence of soil and sediments which have been stirred up by winds. Dark colored waters in the southern part of the lake indicate a presence of submerged and floating macrophytes (aquatic plants) as well as algae," says ESA.</p>



<p>"Surrounded by hills on three sides, Trasimeno is subject to heavy storms created by winds, especially from the north and west. There are three islets in the lake: Maggiore, Minore and Polvese (the largest). The lake’s shores are sparsely inhabited with only two popular villages: Castiglione del Lago and Passignano sul Trasimeno."</p>



<p>"Italy is experiencing its worst drought in 70 years which has affected drinking water supplies, hydroelectric power and agricultural production. High temperatures, hot winds and lack of rainfall are the main causes of drought in the Umbrian region which saw Lake Trasimeno’s drop 1.3 m, reaching the limit of the hydrometric zero in July 2022."</p>



<p><em>Video/Image Credit: ESA&nbsp;</em></p>



<p><em>-</em><em>--</em></p>



<p><em>By </em><a href="http://csexton@earth.com"><em>Chrissy Sexton</em></a><em>, </em><a href="https://www.earth.com/staff/"><em>Earth.com</em></a><em> Staff Writer</em></p>

Lake Trasimeno in Central Italy

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<p>Today's <strong>Video of the Day</strong> from the <a href="https://www.acs.org/">American Chemical Society</a> describes a new self-powered nanosensor that can instantly detect mercury contamination with the tap of a finger.&nbsp;</p>



<p>The oxidized form of mercury can be harmful when it is ingested through contaminated water or food. This makes it necessary for experts to develop sensors that can quickly and accurately detect the presence of mercury.&nbsp;</p>



<p>Zong-Hong Lin and colleagues have now created a triboelectric nanosensor (TENS) that can detect mercury by simply by touching a sample. According to the researchers, their TENS could serve as the basis for similar devices to safely and remotely monitor other pollutants.</p>



<p><em>Video Credit: American Chemical Society&nbsp;</em></p>



<p><em>-</em><em>--</em></p>



<p><em>By </em><a href="mailto:csexton@earth.com"><em>Chrissy Sexton</em></a><em>, </em><a href="https://www.earth.com/staff/"><em>Earth.com</em></a><em> Editor</em></p>



<p>Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.</p>

Detecting mercury contamination with the tap of a finger

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<p>Today’s <strong>Video of the Day</strong> from the <a href="https://www.esa.int/">European Space Agency</a> features Kainji Lake, a reservoir on the Niger River.</p>



<p>In 1968, Kainji Lake was created by the construction of the Kainji Dam. The Niger River, the third longest in Africa, enters the lake in the north.&nbsp;</p>



<p>According to <a href="https://www.earth.com/news/rivers-in-the-american-west-are-a-lifesaving-resource-for-birds/">ESA</a>, the creation of the lake submerged Foge Island and the town of Bussa and permanently flooded other riverine settlements, leaving around 50,000 people displaced.&nbsp;</p>



<p>Large parts of Foge Island are temporarily exposed during low water tides, and the land is often used by migrating fishermen. Kainji Dam is a dam across the Niger River in Niger State of Central Nigeria. </p>



<p>Wild mammals occur at relatively low densities due to illegal hunting. Lake Kainji has suffered a dramatic decline as a fishery due to the high numbers of artisanal and subsistence fisherfolk using the lake. It has been suggested that a period of closure, together with controlled fishing rights may help improve fish stocks.</p>



<p>Kainji Lake National Park is the oldest of its kind in Nigeria. The park contains three distinct areas: a part of the Kainji Lake, the Borgu Game Reserve to the west of the lake, and the Zugurma Game Reserve to the southeast. The park is home to around 65 mammal species, 350 bird species, and 30 species of reptiles and amphibians. </p>



<p><em>Video/ Image Credit: European Space Agency&nbsp;</em></p>



<p><em>-</em><em>--</em></p>



<p><em>By </em><a href="mailto:csexton@earth.com"><em>Chrissy Sexton</em></a><em>, </em><a href="https://www.earth.com/staff/"><em>Earth.com</em></a><em> Editor</em></p>



<p>Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.</p>

Kainji Lake in north central Nigeria

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<p>Today’s <strong>Video of the Day</strong> from <a href="https://www.igb.illinois.edu/">Carl R. Woese Institute for Genomic Biology</a> reveals how scientists can modify common crops like soybean, rice, and wheat to protect them from heat stress.</p>



<p>“We need to double crop production by 2050 to feed a growing global population, and not only are we not on track to do that, but climate change is further complicating things,” said Amanda Cavanagh, a lecturer at the University of Essex. </p>



<p>The study is part of Realizing Increased Photosynthetic Efficiency (RIPE), an international research project that aims to develop food crops that turn the sun’s energy into food more efficiently.</p>



<p>“Using an engineering approach we designed multiple alternative metabolic pathways to photorespiration. Testing them in the field showed increases in productivity which led Amanda to significantly move the project forward by showing our engineered plants can withstand pretty extreme temperature stress,” said study co-author and RIPE researcher Paul South.&nbsp;</p>



<p>“As the climate changes and temperature stresses increase the pressure on our global food supply, farmers will need every tool available including engineering approaches like the synthetic biology used here to maintain safe and productive harvests.”</p>



<p>The experts tested plants modified to have more efficient photorespiration to see if they were better adapted to warmer temperatures.&nbsp;</p>



<p>The team found that the engineered plants produced 26 percent more biomass than the wild-type plants exposed to the same temperatures, and had 15 percent less yield loss under the higher temperatures.</p>



<p><em>Video Credit: Amanda Nguyen/University of Illinois</em></p>



<p><em>-</em><em>--</em></p>



<p><em>By </em><a href="mailto:csexton@earth.com"><em>Chrissy Sexton</em></a><em>, </em><a href="https://www.earth.com/staff/"><em>Earth.com</em></a><em> Editor</em></p>



<p>Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.</p>

Designing crops that can beat the heat

[sendtonews key="QGPzYnXEtN-1712599-12187" type="single"] Today’s Video of the Day from Carl...

<p>It was two weeks later and Austin and Carlos were on the riverboat, ready for action. Austin was grateful to see how happy and excited Carlos was about spending time with him.</p>
<p>The guide saw Carlos’ camera and informed him that he would not be able to take photos on this tour. Austin thought it was a pointless rule, but soon, he would understand why the rule was put in place. Photo Credit: YouTube – Okefenokee Swamp Park</p>


The Special Day