Human,Brain,Neuron,Activity.,Brain,3d,Neural,Network.,Neurological,Functions,

If you've ever groaned at the notion of getting out of bed for an early morning workout, or grumbled at the thought of losing a night's sleep due to a late-night Netflix binge, your brain is echoing your sentiments to the activities.



In a remarkable and lengthy study, scientists embarked on a fascinating journey to understand this relationship. They closely monitored a single person's brain activity, physical activity, mood and lifestyle for a whopping five months.



<h2 class="wp-block-heading" id="h-brain-after-daily-activities">Brain after daily activities</h2>



"We wanted to go beyond isolated events. Our behavior and mental states are constantly shaped by our environment and experiences," says research leader Ana Triana. 



Yet, we know little about the response of <a href="https://www.earth.com/news/brain-echoes-todays-activities-change-your-behavior-for-weeks/" target="_blank" rel="noreferrer noopener">brain functional connectivity</a> to environmental, physiological, and behavioral changes on different timescales, from days to months.



"To truly understand the brain, we need to look at how it responds and evolves over time, influenced by our environment, experiences, and daily habits." 



Triana wasn't just leading the research; she was the subject, lending a unique, deeply personal perspective to the study.



Findings from this investigation unveil that our brains don't just react in knee-jerk, immediate responses to daily events. 



Indeed, the brain seems to have a 'memory' of sorts. It evolves according to sleep patterns, physical activity, mood, and even respiratory rate over several days.



If you thought a restless night or an intense workout only had immediate, short-term effects, think again. These experiences could still be impacting your brain -- and your attention, cognition, and memory – well into the next week.



<h2 class="wp-block-heading" id="h-brain-s-connectivity">Brain's connectivity</h2>



The research didn't stop at understanding the brain's behavioral response. It also shed light on fascinating connections between the heart and brain. 



Heart rate variability, a measure of the heart's adaptability, appears to have a strong link with brain connectivity, particularly during rest. 



So, taking a minute to focus on your breath, engage in mindfulness, or practice any stress management technique could be shaping your <a href="https://www.earth.com/news/first-complete-map-of-every-neuron-in-the-brain-revealed/" target="_blank" rel="noreferrer noopener">brain</a>'s wiring even when you're not actively focused on a task.



Even physical activity positively influences how different regions of the brain interact, potentially impacting memory and cognitive flexibility -- the ability to switch between thinking about different concepts, or to think about multiple concepts simultaneously.



Intriguingly, even minor shifts in mood, and fluctuations in heart rate could leave lasting imprints for up to fifteen days.



<h2 class="wp-block-heading" id="h-scanning-activities-in-brain">Scanning activities in brain</h2>



"At the beginning, it was exciting and a bit stressful. Then, routine settles in and you forget," says Triana. Data from the devices and twice-weekly brain scans were complemented by qualitative data from mood surveys.



The researchers from <a href="https://www.aalto.fi/en" target="_blank" rel="noreferrer noopener">Aalto University</a> and the <a href="https://www.oulu.fi/en" target="_blank" rel="noreferrer noopener">University of Oulu</a> identified two distinct response patterns in the <a href="https://www.earth.com/news/how-does-our-brain-divide-the-day-into-different-chapters/" target="_blank" rel="noreferrer noopener">brain</a>: a short-term wave, lasting under seven days, and a long-term wave up to fifteen days. 



These waves reflected the brain's quick adaptability on one hand and more gradual, lasting effects on the other.



<h2 class="wp-block-heading" id="h-implications-for-mental-health">Implications for mental health</h2>



This study holds significant implications for our understanding of mental health and well-being. 



By appreciating that the brain's responses are not instantaneous but rather span several days to weeks, mental health professionals might develop more effective therapeutic interventions that align with these temporal patterns. 



It also encourages individuals to adopt healthier lifestyle habits, recognizing that daily decisions have lasting effects on brain function and connectivity. 



Importantly, the research suggests that managing stress and maintaining regular physical activity can enhance cognitive flexibility, potentially improving mental health outcomes and overall quality of life.



<h2 class="wp-block-heading" id="h-personalized-neuroscience">Personalized neuroscience</h2>



The pioneering nature of this research offers a framework for personalized neuroscience, where tailored interventions could be designed based on an individual's unique brain response patterns and lifestyle. 



With wearable technology and continuous monitoring becoming more accessible, it is feasible to integrate these insights into everyday life, allowing individuals to track their <a href="https://www.earth.com/news/where-does-creativity-start-in-the-brain/" target="_blank" rel="noreferrer noopener">brain health</a> in real-time. 



This prospect not only empowers individuals to make informed decisions about their mental and physical health but also opens avenues for further research to explore how external factors, such as nutrition and social interactions, contribute to the brain's long-term evolution. 



As this field progresses, the potential for more personalized, responsive approaches to brain health and well-being will only grow, paving the way for improved quality of life and a deeper understanding of the human brain.



<h2 class="wp-block-heading" id="h-personalized-care-for-brain-activity">Personalized care for brain activity</h2>



The team hopes these findings will inspire future studies to merge brain data with everyday life considerations, driving personalization in mental health treatment. 



"Data from daily life must come into the lab," insists study co-author, neuroscientist and physician Dr Nick Hayward. "Our approach provides essential context to neuroscience and offers granular understanding of the brain."



Could real-time tracking of brain changes revolutionize healthcare? Triana certainly thinks so, saying, "Linking brain activity with physiological and environmental data can transform personalized healthcare, paving the way for earlier interventions and improved results."



In conclusion, the way you sleep, the level of your physical activity, your mood, and even your heart rate variability could be influencing your brain in ways we are only beginning to understand. 



So next time you're grappling with the choice of an extra hour of sleep or an early morning jog, remember, your brain is keeping score.



The study is published in the journal <a href="https://journals.plos.org/plosbiology/article?id=10.1371/journal.pbio.3002797" target="_blank" rel="noreferrer noopener">PLOS Biology</a>.



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Your brain literally changes based on daily activities and lifestyle

If you've ever groaned at the notion of getting out of bed for an early morning workout, or grumbled at the thought of losing a night's sleep due to a late-night Netflix binge, your brain is echoing your sentiments to the activities. In a remarkable and lengthy study, scientists embarked on a fascinating journey to understand this relationship. They closely monitored a single person's brain activity, physical activity, mood and lifestyle for a whopping five months. Brain after daily activities "We wanted to go beyond isolated events....

Peter and the Farm (2016)

Artist, ex-hippie and organic livestock <a href="https://www.earth.com/video/vertical-farming-future-agriculture/">farmer</a> Peter Dunning lives a life of solitude amid pastoral beauty and decay. He still has the beard and longish hair to fit his alternative past, and a love-hate relationship with his soil and profession. Our first view of Dunning’s Mile Hill Farm is through the front windshield of a vehicle approaching a ramshackle cluster of buildings in the green middle of nowhere that look to be already partially reclaimed by the fertile land.

The film, directed by Tony Stone, is a gloss-free depiction of organic farming, with all its mud, blood, flies, filth and casual animal cruelty.  At one point, when young assistant director Dylan Krause helps the farmer wrangle a sheep to the ground, the kid nervously looks for reassurance. “We can’t catch these lice, right?”

A scene that’s just as gritty, but not the least bit humorous, is when the camera catches Dunning struggling with a sheep that it tries to shoot in the head with a rifle – and misses with the first attempt. Then he casually cuts the dead sheep’s throat and throws his pigs a pan of blood. 

Dunning has a multitude of stories, some of them ghastly but usually told in a cheerful tone that can go harder in the next breath. A mutilated hand is the result of a bandsaw accident he tells in loving detail. It left him with three gnarled fingers and a three-month hospital stay when he was 26.

When his demons are let loose, Dunning shares his regret for his inability to keep either of at least two ex-wives and his four adult children around him. “I could, in front of you, call all of my children. Not a one would answer the phone,” he tells his behind-the-camera audience. 

He shows the exact places where two of his kids were conceived, each story involving Dunning and a wife camping out overnight to bring a predatory raccoon to justice. There’s also bitter resentment for how his adoptive family would tell him next to nothing about the biological mother he never knew. 

It’s hard at first figuring out why the kids won’t visit or take the calls of the chatty old guy. Then the camera catches him in a low point, when he rages about his life choices and berates poor young Dylan for every imagined insult, and the family dysfunction begins to make sense.

Dunning is a man filled with rage, bitterness, self-revulsion and dark thoughts during his depressive, alcohol-fueled slides. At these times he admits the need to detox, “but not now.” 

“I’ve spread and lost hope over every acre,” the dark poet says of the property he tour-guides the camera through, stopping to tell stories about his herds of sheep, cows, pigs, his dog and even a couple trees on the property. 

“Life is really more impressive than death,” he says at one point. But he also mentions a rifle so powerful that it virtually obliterated the brains of a deer he had to use it on up close after wounding the beast. After which he says of his hired hand and the gun, “Paul hides it when I get suicidal.”

Dunning found his way to the property through the counter-culture and his artistic pursuits. He was – and to some extent still is – a painter and a sculptor. His pragmatic goal, when he was 33 and rudderless, was “half of the year to make money, half to make art.”

Over the decades that have passed since, Dunning has found that an organic farm is hardly a part-time venture. He admits that the year 1998 was the farm’s high point and “it’s been in decay ever since.”  Later, he eloquently describes the condition of land and landowner, perhaps quoting one of his own dark poems, “The old man is slowing down, and the weeds are speeding up.”

During one of his self-flagellating soliloquies he’s predicting how quickly he’ll be forgotten. “This used to be the Peter Dunning farm,” he imagines strangers saying dismissively of his land and his life.

Peter and the Farm is gorgeously shot, though some of the night scenes are too dark to be clearly seen. Rural Vermont looks both appealing and daunting. And the lonely, irascible, loquacious, contemplative, poetic, raging, drunk landowner knowns how to draw an audience.

Peter and the Farm is currently playing on Netflix ad is also available on iTunes, Amazon and other online sites.

--

Original Feature by David Searls, <a href="http://earth.com">Earth.com</a> Staff Writer

Image Credit: <a href="http://www.magpictures.com/peterandthefarm/">Peter and the Farm Official Site</a>

Earth.com Film Review Peter and the Farm

Peter and the Farm (2016) Artist, ex-hippie and organic livestock...

Researchers from <a href="https://www.yale.edu/">Yale University</a> and <a href="http://english.pku.edu.cn/">Peking University</a> in Beijing, <a href="https://www.earth.com/news/winter-pollution-china-worsening/">China</a> have written a paper suggesting that air pollution impacts older males the most, in terms of a loss of logical and verbal reasoning skills.

The researchers tested a total of 25,485 people of both sexes in 2010 and 2014 and found that for those who were 20 and under, there were no statistical difference in math and language test scores. Between age 21 and 60, the test results of males exceeded those of female participants. But in the later years, scores fell considerably for males in the most polluted cities.

The researchers were able to score the difference based on Air Quality Index readings, which grade air pollution levels on a 0-500 scale. For every ten units on the Index, older males lost 2.1 percent in cognitive skills, on average, to females living in the same cities.

“We hypothesize that differences in brain composition may help explain why men appear more sensitive to the negative effects of air pollution,” said study leader Xi Chen of Yale.

The researchers went on the explain that they attributed the greater impact of air pollution on older males on brain structural differences between the genders, making the male more vulnerable to shrinking white and gray matter.

“Contemporaneous and cumulative exposure to air pollution significantly lowers both the verbal and math test scores of survey subjects,” said Chen. “In general, men perform worse than women when exposed to the same dose of air pollution. The gender difference is more salient among the old and less educated in both tests.”

They also found that older males lost more on verbal abilities than on math skills.

China is a nation experiencing a severe air pollution crisis associated with rapid industrialization, so its cities are in much worse air-quality conditions than U.S. cities.

The study was published by <a href="https://www.econstor.eu/bitstream/10419/155762/1/GLO_DP_0032.pdfor.">EconStor</a>.

-- 

Written by David Searls, Earth.com staff writer

Source:<a href="https://www.econstor.eu/bitstream/10419/155762/1/GLO_DP_0032.pdfor."> EconStor</a>

Air pollution most severely impacts brains of older men

Researchers from Yale University and Peking University in Beijing, China...

Have you ever been driving past a seemingly innocuous stretch of factories when all of a sudden the stench of rotten eggs fills your car? The few minutes it takes for the factory odors to pass can often leave you watery-eyed and gagging. That smell may be a temporary problem for you, but it can be a constant source of discomfort for those who live or work in the shadow of that factory.

These nuisance factory odors – often coming from sewage and wastewater treatment facilities – are a global problem, and it can often be difficult to detect and eliminate the sources of these terrible smells. Fortunately, scientists have recently developed a system to sample, measure, categorize, and control these smells.

“Each odor has its own chemical source and is often found in mixtures, making identification of the sources of these smells challenging,” says Jay Witherspoon, the leader of a research team at <a href="https://www.ch2m.com/">CH2M</a>. 

Irwin Suffet, a collaborator from the <a href="http://www.ucla.edu/">University of California, Los Angeles</a> (UCLA) developed an “odor wheel,” which is implemented in field-testing. The wheel matches general descriptions of a range of smells to their chemical composition. This allows the research team to ask the public to identify the <a href="https://www.earth.com/news/mosquitoes-odor-receptors/">odor</a>, which they can then more accurately pinpoint to the chemical cause of each smell.

The researchers also analyze smell samples using sensitive detection devices. One of the more useful devices is usually the mass spectrometer, which can pinpoint the chemical compounds that make up the offensive odor.

When the smell’s molecular composition is identified, it can potentially be eliminated using scrubbers, biofilters, or other chemicals that mask the stench. The most common offensive smell from factories is that of rotten eggs from hydrogen sulfide. This odor has been mostly eliminated by implementation of chemical and biological odor control devices.

Witherspoon and other researchers are working to help eradicate problem odors using available technology. These solutions are only becoming more necessary, as Witherspoon has noticed that “people have become more sensitive to odors, and they are living closer to treatment facilities.” He laments that these awful smells “have become a quality of life issue.” Luckily, he and his team are doing their best to eliminate these odors from existence.

--

By Connor Ertz, Earth.com Staff Writer

Source: <a href="https://www.acs.org/content/acs/en.html">American Chemical Society</a>

New methods developed to eliminate terrible factory odors

Have you ever been driving past a seemingly innocuous stretch...

For those of us with fair skin, going to the beach can be an almost constant war against the sun – one that we often lose. It’s tough to get in a full day of fun in the <a href="https://www.earth.com/video/solar-smart-windows-sunlight/">sun</a> when you’re spending half of it applying and reapplying copious amounts of sunscreen. Luckily, Vasilios Stavros and the researchers at the <a href="http://www2.warwick.ac.uk/">University of Warwick</a> in the UK are trying to help.

"Sunscreens have been around for decades, so you'd think we know all there is to know about them -- but we really don't," says Vasilios Stavros, Ph.D. His team is looking at sunscreens on a molecular level in order to help develop longer-lasting sunblock.

The goal is to better understand how molecules in sunscreen absorb light, while finding ways to increase their absorption and decrease their degradation. One of the issues is that a typical sunscreen contains many different ingredients. The research team at the <a href="http://www2.warwick.ac.uk/">University of Warwick</a> began by focusing on sunscreen ingredients known as chemical filters, which are molecules that absorb UV light.

So far, Stavros and his team have studied about 10 common chemical filters. These filters absorb energy from the sun, which causes them to enter an excited electronic state. Unlike other molecules that may break under the intensity of the sun, chemical filters can bring themselves back down to a more stable ground state while releasing energy as harmless heat. However, sometimes they can fail, getting stuck in the excited state or breaking entirely. 

The researchers used lasers to simulate the sun’s energy and observe the flow of energy through the chemical filters, which went from ground state to excited state and back to ground state (if they worked properly). They found that roughly 10 percent of the molecules in one specific filter – known as oxybenzone – get locked in an excited state under the laser’s energy.

Studying how these molecules behave is key to finding ways to improve the overall performance of sunblock. The researchers are just now beginning to combine chemical filters in order to study them in a context more closely related to actual sunscreen, instead of just in isolation.

As research progresses, it may lead to significant improvements in the efficacy of sunblock and improve beach days for people everywhere.

--

By Connor Ertz, <a href="http://earth.com">Earth.com</a> Staff Writer

Source: <a href="https://www.acs.org/content/acs/en.html">American Chemical Society</a>

Longer lasting sunscreen may be just around the corner

For those of us with fair skin, going to the...

Head into any shop themed around relaxation, and you’re bound to find CDs of nature sounds. Those looking to unwind have sworn by whale song, thunderstorms, birds and rustling leaves for years.

It turns out, they may be right. Researchers from <a href="https://www.bsms.ac.uk/">Brighton and Sussex Medical School</a> say they’ve discovered not only that nature sounds provably help people relax, but also why.

Past studies have backed up that natural sounds and settings can relieve stress.

“The positive effects of exposure to naturalistic environmental stimuli extend to health benefits, including improvements in the patient experience of general anaesthesia, enhanced post-operative recovery, and reduced pain and anxiety in hospice care,” the researchers wrote in the new study.

But this is the first research that offers an explanation as to why it works.

To figure that out, the scientists collaborated with artist Mark Ware to create “natural” and “artificial” audio experiences. Then, they hooked subjects up to an MRI to study their brain activity while they listened to both soundtracks. They also monitored subjects’ heart rates.

That’s when they spotted the key: activity in the brain’s default mode network – areas in the brain that remain active while at rest – changed depending on which set of sounds the subject was listening to.

When listening to the artificial sounds, monitors showed changes in the default mode network of the brain and in the autonomous nervous system similar to changes seen in patients with anxiety, post-traumatic stress disorder, and similar conditions.

When nature sounds were played, other areas of the default mode network activated, and subjects relaxed. In fact, the more stressed subjects were before beginning the study, the greater the relaxation response they showed when listening to nature sounds.

“We are all familiar with the feeling of relaxation and ‘switching-off’ which comes from a walk in the countryside, and now we have evidence from the brain and the body which helps us understand this effect,” lead author Dr. Cassandra Gould van Praag said in a press release. “This has been an exciting collaboration between artists and scientists, and it has produced results which may have a real-world impact, particularly for people who are experiencing high levels of stress.”

The researchers believe their findings can help explain why so many people find nature sounds so relaxing. Ware, Gould van Praag and the other scientists hope to collaborate on future research.

The study has been published in the journal <a href="http://www.nature.com/articles/srep45273">Scientific Reports</a>.

—

By <a href="mailto:kcathey@earth.com">Kyla Cathey</a>, <a href="http://earth.com/staff">Earth.com</a> Staff Writer

Think nature sounds are relaxing? Here's what science says

Head into any shop themed around relaxation, and you’re bound...

How Stanley met Livingstone

“Dr. Livingstone, I presume?”

Most people have heard, or even uttered in jest, that line and never really thought about its origins. It’s usually expressed as a deliberately obvious statement. 

The words were attributed to a surprised Welsh-American explorer Henry Morton Stanley after he finally caught up with English missionary and explorer David Livingstone in what might have been described at the time as deepest, darkest <a href="https://www.earth.com/news/can-renewable-energy-fuel-africa/">Africa</a>. The greeting is amusingly obvious because Stanley was almost undoubtedly addressing the only other English-speaking white man within hundreds of miles. There could be no doubt as to his identity. But one theory is that the awkwardness of the words was a bad attempt by Stanley to hide his alarm at the physical condition of the older man. 

Missionary explorer 

David Livingstone grew up in a very religious, Presbyterian household and stayed religious his entire life. In addition to looking for Christian converts, his many journeys to Africa were to find the source of the Nile, a discovery that he felt would make him famous enough to have influence over ending the slave trade, which he abhorred. 

During one of many trips to Africa he got into a tangle with a lion and had to set his tattered arm by himself. He frequently suffered cholera and the malaria attacks that killed his wife. He was unable to proceed down one river in a steamboat because of the dead bodies thrown into the water by slavers that got tangled in the wheel.

 Livingstone became a national hero with the book he wrote describing his mid-career adventures and by becoming the first European to see the impressive waterfall he’d rename Victoria Falls in honor of his queen. 

Despite his abhorrence for the European slave traders who were among the few whites he met on the Dark Continent, they saved his life on two occasions after his porters died or deserted him and he became ill. At another time, it was Arab traders who rescued him. 

In 1866, Livingstone took an expedition deep into Equatorial Africa in search of the source of the fabled Nile River. Livingstone never did succeed in that venture, but he lost contact with the outside world in the process, which brings us to his partner in legend.

Livingstone never did find the source of the Nile, and his many years of travel left him ravished by illness. 

A life of adventure and exaggeration

If Livingstone’s life was fascinating, Stanley’s was perhaps more so. Though he would be knighted by the British Empire in 1899, that was an honor his miserable beginnings would have never foretold. He never knew his father, his mother abandoned him before he was five and he was probably raped and brutalized at the poorhouse in which he grew up before fleeing the Old World for the new.

Upon his arrival in America, he changed his name to Stanley, supposedly in honor of a wealthy merchant who adopted him when he was 18. However, that story, and many others he told fell apart under closer scrutiny.

Stanley’s Civil War military career was as colorful and hazy as the rest of his life. Living in the South at the time, he reluctantly joined the Confederate Army before being captured in 1862 and switching sides. But he was released soon afterwards by the Union Army because he was so seriously ill. He recovered eventually, worked on merchant vessels and joined the Union Navy in 1864. He and a friend then deserted ship as the war was winding down.

Stanley became a self-styled journalist to chase adventure across the globe. He was briefly imprisoned in the Ottoman Empire (modern-day Turkey) and filed stories on behalf of the New York Times when he followed a British expeditionary force into battle with an Ethiopian king. He also reported on The Glorious Revolution, a Spanish civil war with a glorious name.

By 1869, Livingstone had lost contact with the outside world for three years and the New York Herald commissioned 28-year-old Stanley and his more than 100 porters to find him. The expedition traveled 700 miles into impenetrable forests, leaving many of his porters behind, felled by numerous tropical diseases.

The two explorers finally met up in present-day Tanzania in late 1871. That’s where The New York Times claimed, a year later, that Stanley uttered that timeless greeting.

Stanley was not able to persuade Livingstone to accompany him back, and the older missionary-explorer would die in Africa about a year-and-a-half after the legendary meeting. Stanley would eventually return to Britain, join Parliament, become a bestselling author of books that were probably highly fictionalized versions of his adventures, and be knighted Sir Henry Morton Stanley in 1899.

“Dr. Livingston, I presume?”

Were those words ever actually spoken? That particular page from Stanley’s diary is perhaps suspiciously missing and the account that got written up in the New York Herald in 1872 doesn’t exactly put all doubts at bay:

Preserving a calmness of exterior before the Arabs which was hard to simulate as he reached the group, Mr. Stanley said: – "Doctor Livingstone, I presume?" A smile lit up the features of the pale white man as he answered: "Yes, and I feel thankful that I am here to welcome you."

But if it didn’t happen exactly that way, it should have. 

--

Written by David Searls, <a href="http://Earth.com">Earth.com</a> Staff Writer

Source: <a href="http://news.nationalgeographic.com/news/2013/07/130729-rats-islands-invasive-species-animals-environment/">National Geographic</a>

Earth.com Explorer Series: How Stanley met Livingstone

How Stanley met Livingstone “Dr. Livingstone, I presume?” Most people...

As the legalization of recreational marijuana use continues to expand across the U.S. state by state, cannabis enthusiasts have a new reason to celebrate. A team of researchers from the <a href="https://www.ubc.ca/">University of British Columbia</a> (UBC) have identified 30 genes that give each cannabis strain its specific flavor. 

The research was led by UBC professor Dr. Jörg Bohlmann, adjunct professor Dr. Jonathan Page, and graduate student Judith Booth, and published in the journal <a href="http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0173911">Plos One</a>.

“The goal is to develop well-defined and highly-reproducible cannabis varieties,” said Dr Bohlmann. “This is similar to the wine industry, which depends on defined varieties such as chardonnay or merlot for high value products. Our genomics work can inform breeders of commercial varieties which genes to pay attention to for specific flavor qualities.”

The team observed terpene genes, which are responsible for the different scents and flavors of the cannabis plant. A similar type of gene is in charge of the type of grapevine <a href="https://www.earth.com/video/sriracha-sauce-taste/">flavor</a> in wine. In cannabis plants, terpene genes produce natural terpenes such as myrcene, limonene, and pinene.

“The limonene compound produces a lemon-like flavor and myrcene produces the dank, earthy flavor characteristic of purple kush,” said Booth.

The research adds a great deal of potential economic value to a regulated cannabis industry. The ability to curate and control the production of different cannabis strains would make them available to the public on a much broader level.

'There is a need for high-quality and consistent products made from well defined varieties,” said Dr. Bohlmann.

--

By Rory Arnold, Earth.com Staff Writer

Source: <a href="https://www.ubc.ca/">University of British Columbia</a>

Scientists identify genes that determine cannabis strain flavors

As the legalization of recreational marijuana use continues to expand...

Personality traits such as prudence, impatience, or laziness have been generally thought to be ingrained within an individual, guiding how they weigh the cost of risk, delay, and effort – respectively.  However, according to a new study published in <a href="http://journals.plos.org/ploscompbiol/">PLOS Computational Biology</a>, people’s attitudes towards these social behaviors may unconsciously imitate others.

Jean Daunizeau and Marie Devaine – of <a href="http://english.inserm.fr/">INSERM, Paris</a> – used mathematical modeling and cognitive psychology to analyze how <a href="https://www.earth.com/news/brain-adapts-blind-people/">people</a> adjust and align these traits.

They asked 56 participants to make a series of decisions that involved risks, delays, or efforts – both before and after they observed the decisions of fictitious participants (which were actually artificial intelligence algorithms). These algorithms had their prudent, patient, and lazy personalities precisely calibrated.

The researchers found that participants tended to be influenced by a “false-consensus” bias, where they believed that the attitudes of others resembled their own, despite no evidence to show this. You may have experienced this type of attitude from an uncle at Thanksgiving who brings up an uncomfortable political opinion, believing that everyone else at the table is right there with him. Our usual response is to begin eating as fast as possible and avoid all eye contact.

The results also revealed that many participants exhibited a social influence bias, meaning their attitude adjusts to be more similar to those of the people around them. 

Interestingly, it seems that the social influence bias was partially determined by the false-consensus bias. The researchers found that social influence bias first increased when affected by small false-consensus biases, but decreased when joined with large false-consensus biases. So the more an individual believed others attitudes resembled their own, the less they adjusted their own attitude to be similar to those around them.

Through mathematical simulations, the researchers demonstrated that both biases are indicative of a unique mechanism that is used to learn about and learn from others’ covert attitudes. This finding is a departure from the conventional belief that attitude alignment is unconscious and is triggered by the need to experience feelings of social conformity.

The authors are now using this discovery to determine whether this version of attitude alignment may differ in individuals suffering from neuropsychiatric conditions, such as autism spectrum disorder and schizophrenia.

--

By Connor Ertz, Earth.com Staff Writer

Source: <a href="https://www.plos.org/">PLOS</a>

Is social conformity a conscious or unconscious decision?

Personality traits such as prudence, impatience, or laziness have been...

Asexual <a href="https://www.earth.com/news/male-baboons-will-kill/">reproduction</a> might not be as well-received by humans as the traditional variety, but it would make more sense from an evolutionary viewpoint – so why doesn’t it happen except in some lower forms of life? Of course, humans love sex, but wouldn't reproduction be easier if it could be a solo endeavor? Scientists have been asking that question for a century, and now researchers at the <a href="http://www.adelaide.edu.au/">University of Adelaide</a> in Australia think they might have the answer.

“Asexual reproduction, such as laying unfertilized eggs or budding off a piece of yourself, is a much simpler way of reproducing,” said Dr. Jack da Silva, Senior Lecturer in the <a href="http://www.adelaide.edu.au/">University of Adelaide’s</a> School of Biological Sciences. “It doesn’t require finding a mate, and the time and energy involved in that, nor the intricate and complicated genetics that come into play with sexual reproduction. It’s hard to understand why sex evolved at all.”

Da Silva and student James Galbraith came up with is a theory based on a combination of two existing evolutionary theories. It posits that sexual reproduction between two organisms helps ward off constantly evolving dangerous pathogens with beneficial DNA mutations contributed by the partners that are also constantly evolving to play defense.

They were influenced, first, by the Hill-Robertson Interference theory, which suggests that sex evolved because it allows the recombination of DNA between mating pairs so that individuals are produced that carry more than one beneficial mutation.

The researchers felt that this theory lacked an explanation as to why sexual reproduction would continue long after a population had stabilized.

“It is hard to imagine why this sort of natural selection should be ongoing, which would be required for sex to be favored,” da Silva said. “Most mutations in an adapted population will be bad. For a mutation to be good for you, the environment needs to be changing fairly rapidly. There would need to be some strong ongoing selective force for sex to be favored over asexual reproduction.”

They think they found that strong force in another theory, the Red Queen.  

The Red Queen theory suggests that our bacteria, viruses and parasites are constantly adapting to us and we must keep evolving to resist the pathogens.  This provides the opportunity for new mutations to be beneficial and maintains a strong selective force.

“These two theories have been pushed around and analyzed independently, but we’ve brought them together,” said da Silva. “Either on their own can’t explain sex, but looking at them together we’ve shown that the Red Queen dynamics of co-evolving pathogens produces that changing environment that makes sex advantageous through the simple genetic mechanism of the Hill-Robertson theory.”

Da Silva and Galbraity tested their combination theory through computer simulations that accurately replicated the rapid evolutionary increase shown in the amount of sex with other individuals exhibited by nematode worms coevolving with a highly pathogenic bacterium.

The research was published in the Journal of Evolutionary Biology.

--

Written by David Searls, Earth.com Staff Writer

Source:<a href="http://www.adelaide.edu.au/news/news91262.html"> University of Adelaide</a>

Sex evolved as a means of fighting pathogens, says new study

Asexual reproduction might not be as well-received by humans as...

With the disturbing decline of the <a href="https://www.earth.com/news/honeybees-threatened-by-disease/">honeybee</a> population over the past few years, orchard growers are now looking for viable alternatives in order to manage the pollination of their trees and plants. Luckily, recent research has shown that blue orchard bees (Osmia lignaria) may be a sustainable option in tart cherry orchards. 

Natalie Boyle, an entomologist at the <a href="https://www.usda.gov/">U.S. Department of Agriculture</a>, suggests that a simple change in the layout of the bees’ nesting boxes could make blue orchard bees more likely to remain in the orchard to nest. 

While the honeybee is a social bee species that gathers in colonies, the blue orchard bee is more solitary and nests in the cavities of wood, stems, or even artificial materials like cardboard tubes. This difference in preferred nesting requires that growers make the necessary changes to nesting sites if they want blue orchard bees to take up residence in their orchards.

Boyle laments that management practices for commercial pollination with the blue orchard bee haven’t been as well researched as those of the honeybee. She is looking to change that, saying “This study shows that by simply changing the availability and distribution of nesting sites in the orchard, we can substantially increase overall blue orchard bee nesting success in a commercially managed orchard.”

In order for blue orchard bees to become a cost-effective managed pollinator, they must be willing to remain in the orchard after they are released – which has been an issue in the past.

By changing the nesting arrangement from a large central nesting location with small perimeter nests to small nesting boxes spread evenly throughout the orchard, Boyle found that the blue orchard bees were much more willing to stay and procreate. 

While both setups showed a successful return of bees to the nesting sites, the nesting rates were significantly higher in the uniform nest-box distribution model. Occupancy of nest-tubes increased along with the number of live larvae per location and larvae per individual nest tube.

Although the study did not evaluate the blue orchard bees’ impact on pollination and orchard yield, the researchers are planning a follow-up experiment in 2017. 

In the meantime, Boyle states, "We hope that this study provides practical information that orchardists can use to incorporate blue orchard bee pollination into their current management efforts, particularly with varieties that have been historically fruit set-limited when honey bees are used alone."

More information can be found in the <a href="https://academic.oup.com/jinsectscience">Entomological Society of America’s Journal of Insect Science</a>.

--

By Connor Ertz, Earth.com Staff Writer

Source: <a href="http://www.entsoc.org/">Entomological Society of America</a>

Image: <a href="https://www.ars.usda.gov/images/docs/18333_18528/Osligapple.jpg">USDA</a>

Could blue orchard bees replace honeybees for pollination?

With the disturbing decline of the honeybee population over the...

Most of us are aware by now of the disturbing implications <a href="https://www.earth.com/news/climate-change-evidence-un/">climate change</a> may have on our planet. We’ve also seen the destruction caused by climate change-induced severe weather and natural disasters in recent years. However, what you may not be aware of is the effect climate change can have on mental health as well.

In a new report released by the <a href="http://www.apa.org/">American Psychological Association</a> and <a href="https://ecoamerica.org/">ecoAmerica</a>, entitled Mental Health and Our Changing Climate: Impacts, Implications, and Guidance, researchers found that individuals can suffer from mental health disorders as a result of climate change.

Obviously, natural disasters that cause injury, death, and loss of property can ignite fear and shock in just about anyone. Furthermore, those emotions may eventually disappear, but they might ultimately be replaced by post-traumatic stress disorder in those they have affected.

A study was done involving people living in areas affected by Hurricane Katrina back in 2005. Perhaps unsurprisingly, it determined that suicide and suicidal thoughts more than doubled in those populations. One in six people met the diagnostic criteria for PTSD and 49 percent developed an anxiety or mood disorder such as depression.

However, these mental health issues aren’t solely caused by climate change-induced natural disasters. Researchers found that long-term climate change also plays a role in poor mental health.

Climate change can negatively affect agriculture and infrastructure, impacting occupations and quality of life for millions of people. These changes may lead to loss of identity, vanishing social support structures, a sense of having no control or autonomy and many other mental health problems. Issues like stress and anxiety can also cause physical health effects, such as a weakened immune system.

These changes are occurring at a community level as well. Both short and long-term climate change events have been shown to increase hostility and interpersonal and intergroup aggression, which lead to the loss of social identity and cohesion. 

With climate change already having a physical impact, you may be wondering: how do we combat these psychological effects? According to the report, the key is to build resilience. This means building and maintaining your social networks – both online and in person – so that you can have people to turn to in times of need. 

The report further explains: “Individuals' personal capacity to withstand trauma is increased when they are connected to their networks off- and online. Researchers have found that higher levels of social support during and in the aftermath of a disaster are associated with lower rates of psychological distress.”

Furthermore, adopting environmentally friendly policies and lifestyle choices not only benefits the environment, but it can have a positive effect on mental health as well. Research shows that biking or walking to work has been linked to decreased stress. Likewise, the use of public transportation has been associated with boost in community cohesion and decrease in depression and stress – much to the surprise of anyone who has ever taken a public bus.

Increased accessibility to parks and other natural spaces may also be of benefit to one’s mental health, according to the report. So if you take these suggestions to heart, you may not only be benefitting your mental health, but you could be helping the planet as well.

--

By Connor Ertz, Earth.com Staff Writer

Source: <a href="http://www.apa.org/">American Psychological Association</a>

Climate change may cause mental health issues

Most of us are aware by now of the disturbing...

Our planet contains countless breathtaking and unforgettable places to explore. This is not among them. Presenting Earth.com <a href="https://www.earth.com/news/vacations-hell-chernobyl/">Vacations To Hell</a>: Sakha Republic. 

For your east Siberian vacation to be called “hellish,” you’ll first have to give up your certainty that the undesired final destination of lost souls is kept at high thermostat levels. Instead, picture a frozen tundra, unburied winter corpses and a rampaging super-pack of hungry wolves. At least until the brief, sixty degree summers hit.

The Sakha Republic is a Russian Federation member whose capital is located just 280 miles south of the Arctic Circle. The republic is larger than Argentina and just smaller than India. Its capital is Yakutsk, the world’s coldest city, but a surprisingly metropolitan one with a population of over 280,000 that’s got a university and museums and restaurants and the like. TripAdvisor says you could rent a room in a dozen or more hotels and motels here, at prices generally starting in the thirties and heading north of a hundred dollars a night. 

With its record low temp of -83 Fahrenheit, Yakutsk is, perhaps to no one’s surprise, also home to the Mammoth Museum. And to the Melnikov Permafrost Institute Underground Laboratory. Anything with the word “permafrost” in it just seems to fit here. One might imagine wearing sweaters year-round when working at this underground lab. 

Correction: you should pack shorts and swimsuit if you come in July. Yakutsk hits summer highs (very briefly) that can go about 86 F, for the wildest annual temperature swing in the world. 

Nyet to indoor plumbing

One small town in the Republic, Oymyakon, has almost no indoor plumbing because the buried pipes would constantly freeze. That’s to be expected with temperatures that set a non-polar record low of -96.2 F in 1924. So, if you visit during winter months be careful not to sample too much of the local brew before bedtime. If you get up with a full bladder and it’s 50 below, you won’t want to expose much of anything in the outhouse. 

Truckers always travel in pairs and don’t turn off their engines for the entirety of their two-week supply runs, according to The Independent. And you can’t bury gramma in the winter until a roaring bonfire has been lit to melt some of the frost from the ground. They don’t call it permafrost for nothin’. 

Wolves on the prowl

Then there’s Verkhoyansk, located 400 miles north of Yakutsk. Its 1,311 hardy citizens, at last count, boast the Pole of Cold Museum. One might imagine that the name says it all. But here’s another way of looking at the chill factor: Verkhoyansk has an average year-round temperature of 5.9 degrees Fahrenheit, and that’s even after tallying summer temps. The town’s record for warmest month was in July 2010, when the reading hit a sweltering 69.4 F. 

The main course of business around here in 2011 and 2012 was fighting off a roving super-pack of some 400 hungry wolves encircling the town when their usual diet of blue hare ran low on the tundra. Wolves generally run in pack of seven to ten, so 400 was a bit of an overkill to the town’s and region’s animal population. The final tally was the loss of 313 horses and 16,000 reindeer, but no humans.

All in all, a summer-months booking to the Sakha Republic could make for a culturally enriching and memorable vacation. As for a winter visit, not so much. 

--

Feature by David Searls, <a href="http://earth.com">Earth.com</a> Staff Writer

Earth.com Vacations to Hell: Sakha Republic

Our planet contains countless breathtaking and unforgettable places to explore....

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Today’s Video of the Day 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.



"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.



"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."



Video/ Image Credit: ESA



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

Nushagak Bay in southwest Alaska

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Today's Video of the Day 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.



"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.



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.



Video/ Image Credit: American Chemical Society&nbsp;



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



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.

Flu viruses are more flexible than expected

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Today’s Video of the Day 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;



"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.



"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."



"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."



Video/Image Credit: ESA&nbsp;



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

Lake Trasimeno in Central Italy

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Today's Video of the Day 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;



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;



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.



Video Credit: American Chemical Society&nbsp;



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



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.

Detecting mercury contamination with the tap of a finger

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Today’s Video of the Day from the <a href="https://www.acs.org/">American Chemical Society</a> explores the ability of salt to transform the way that foods and beverages taste. Salt is known to cover up undesirable flavors, such as bitterness in coffee or beer, but how exactly does sodium chloride change the taste of other compounds?



One previous study showed that, not only does salt suppress bitterness, but also enhances sweetness and sourness. Another study revealed that bitterness reduction by salt seems to be happening at the tongue receptor level as well as in the brain.&nbsp;



While it is known that salt taste is mediated by the presence of sodium channels in the form of taste buds, experts believe that there is also an unknown receptor responsible for how we taste salt that has not yet been identified.&nbsp;



Video Credit: ACS Reactions



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



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.

How does salt makes things taste better?

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> features Santiago, the capital city of Chile. The city is located in the center of the Santiago Metropolitan Region, which has a population of about eight million people.&nbsp;



'The weather of Santiago resembles the Mediterranean climate with dry and warm summers with temperatures reaching up to 35°C (from October to March) and cool and humid winters that can drop to 0°C (from April to September)."



"The city lies in the centre of the country’s central valley around 80 km from the Pacific Ocean to the west and borders Argentina to the east. A tiny part of Argentina is visible in the top-right corner of the image where the mountain crest of the Andes Mountains acts as a divider between the two countries," says ESA.



Video/ Image Credit: ESA



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



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.

Santiago, Chile in South America

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Spiral,Galaxy,,Illustration,Of,Milky,Way

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Astronomers at <a href="https://www.jhu.edu/">Johns Hopkins University</a> have created an interactive map of the universe, including the actual position and real colors of 200,000 galaxies. The map allows the public to access data that was previously only available to scientists.



The map was developed using data collected by the Sloan Digital Sky Survey. For over two decades, a telescope in New Mexico was aimed at slightly different locations to capture the night sky.&nbsp;



"Growing up I was very inspired by astronomy pictures, stars, nebulae and galaxies, and now it's our time to create a new type of picture to inspire people," said map creator Brice Ménard, a professor at Johns Hopkins. "Astrophysicists around the world have been analyzing this data for years, leading to thousands of scientific papers and discoveries. But nobody took the time to create a map that is beautiful, scientifically accurate, and accessible to people who are not scientists. Our goal here is to show everybody what the universe really looks like."



"In this map, we are just a speck at the very bottom, just one pixel. And when I say we, I mean our galaxy, the Milky Way which has billions of stars and planets. We are used to seeing astronomical pictures showing one galaxy here, one galaxy there or perhaps a group of galaxies. But what this map shows is a very, very different scale."



"From this speck at the bottom, we are able to map out galaxies across the entire universe, and that says something about the power of science."



The <a href="https://mapoftheuniverse.net/">interactive map</a> is available online, where it can be downloaded for free.



Video Credit: Johns Hopkins&nbsp;



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



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.

Interactive map of the universe includes 200,000 galaxies

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Lesotho: Africa's "Kingdom in the Sky" Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> features northwest Lesotho in South Africa.



According to ESA, Lesotho is the only nation in the world that lies completely above 1,000 m in elevation. The country is famous for its tall mountains and narrow valleys, and is known as Africa's "Kingdom in the Sky."



Out of a population of around two million people, about 80 percent live in rural areas. More than 75 percent of these people are engaged in <a href="https://www.earth.com/news/climate-change-will-have-a-global-impact-on-agriculture/">agriculture</a>, including rainfed cereal production and animal grazing.&nbsp;



ESA reports that the country’s agricultural system faces a growing number of issues, with climate-related vulnerabilities such as drought, floods and extreme temperatures occurring more frequently. 



Diamonds are amongst the minerals found in the mountains. Indeed, Lesotho can truly be called the Kingdom in the Sky. Beautiful, culturally rich, safe, affordable, and easily accessible from Durban and Johannesburg, mountainous Lesotho is a vastly underrated travel destination. the Kingdom of Lesotho (Sotho: 'Muso oa Lesotho) is an enclaved country in southern Africa. It is just over 30,000 km2 (11,583 sq mi) in size and has a population of around 2 million.



Video Credit: ESA&nbsp;&nbsp;



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



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.

Lesotho: Africa's "Kingdom in the Sky"

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Today's Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> features Dublin, the capital and largest city of Ireland. Beyond its pub culture, Dublin is known as a modern culinary destination and a UNESCO City of Literature.



"Dublin is located near the midpoint of Ireland’s east coast in the province of Leinster. The city, which covers an area of around 115 square kilometers, is bordered by the Dublin Mountains, a low mountain range to the south, and is surrounded by flat farmland to the north and west," says ESA.



"The city straddles the River Liffey, which rises in the Wicklow Mountains and flows around 80 kilometers eastwards through the city of Dublin, in which it is canalised and bordered with quays. It then empties into Dublin Bay, an arm of the Irish Sea."



Dublin has an abundance of green spaces, including one of the largest enclosed public parks in any European capital city. Phoenix Park, which was originally formed as a royal hunting park in the 1660s, includes 707 hectares of green space.



Video Credit: ESA&nbsp;



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



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.

The city of Dublin on Ireland's east coast

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Today's Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> features the province of Zaragoza in northeast Spain. The image was captured by the Copernicus Sentinel-2 mission.



"Together with the provinces of Huesca and Teruel, Zaragoza formed the old kingdom of Aragon. Its capital, also called Zaragoza (not visible in this image) is home to around half of Aragon’s population," says ESA.



"The Ebro River can be seen winding its way through the province from west to east in this image. Between its source in the Cantabrian Mountains in the northwest and its delta on the Mediterranean coast, the Ebro River is fed by more than 200 tributaries as it flows 910 km across much of northern Spain."



Since rainfall is very scarce in this region, irrigation in the Ebro basin is critically important. In the valleys surrounding the Ebro River, many fields are used for growing crops such as corn, wheat, and barley.



Video/ Image Credit: ESA



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



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.

The province of Zaragoza in northeast Spain

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Today’s Video of the Day from <a href="https://earthobservatory.nasa.gov/">NASA Earth Observatory</a> reveals the evolution of the Columbia Glacier in southeastern Alaska. Columbia is among the fastest shrinking glaciers in the world, and the video documents its rapid retreat over the years.&nbsp;



Columbia Glacier is a large, multi-branched calving glacier that flows out of the Chugach Mountains to the Prince William Sound.&nbsp;



According to USGS, Columbia had a long history of stability prior to 1980, with a length 41 miles, and small, short-lived advances or retreats.



In the years since 1980, however, satellite images have captured Columbia’s alarming retreat. By using false-color images, scientists can distinguish between snow and ice, open water, vegetation, and rocky debris on the glacier’s surface.



The series of false-color images featured in today's video were acquired over the span of 35 years. You can see that by 2021, the glacier’s main branch had retreated about 15 miles from its initial position.



The Columbia Glacier has also lost more than 50 percent of its volume, mostly due to calving. <a href="https://www.earth.com/video/nasa-reveals-3d-visual-of-an-atmospheric-river/">NASA</a> reports that while climate change likely started the retreat, mechanical processes kept the disintegration going.



The NASA images are provided by Jesse Allen, Robert Simmon, Joshua Stevens, and Lauren Dauphin using data from Landsat satellites, from the U.S. Geological Survey, and data from MODIS on NASA’s Terra satellite. The structure of Columbia’s moraine played a large role in the stability of the glacier before 1980. 



Like other tidewater glaciers, the Columbia built up a moraine over time, and the mixture of ice and rock functioned like a dam keeping out the sea. It was supported on one end by the shoreline and by the underwater terminal moraine at the other.



Video Credit: NASA Earth Observatory/&nbsp; NASA’s Scientific Visualization Studio



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



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.

The rapid retreat of the Columbia Glacier

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> features the Pyrenees Mountains, which form a natural boundary between France and Spain in southwest Europe.



The mountain range is 430 kilometers in length. It stretches from the Mediterranean Sea on the east to the Atlantic Ocean on the west.



At an elevation of 3404 meters, Pico de Aneto is the highest mountain peak in the Pyrenees, and the third-highest peak in Spain. Pico de Aneto is located in the Posets-Maladeta Natural Park, which spans more than 82,000 acres.&nbsp;



"Geological studies have revealed that the Pyrenees Mountains have been around for longer than the Alps, with their sediments first deposited in coastal basins during the Paleozoic and Mesozoic eras," reports ESA.



"The entire mountain range formed due to the upwelling of large sedimentary rocks by the collision of the Iberian and the Eurasian plate around 100 to 150 million years ago, followed by intense erosion from ice and water."



The western Pyrenees receive more precipitation due to moisture blowing in from the Atlantic Ocean. The mountain range contains many lakes, several small glaciers, and some of the highest waterfalls in Europe.



Video &amp; Image Credit: ESA



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



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.

The Pyrenees Mountains in southwest Europe

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Earth,Like,Exoplanet,3d,Render

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Today's Video of the Day from <a href="https://www.nasa.gov/goddard">NASA Goddard</a> describes two exoplanets that are orbiting a star 218 light-years away. A team of researchers led by the University of Montreal has found evidence that these planets are "water worlds."



The experts used data from NASA’s Hubble and Spitzer Space Telescopes. They discovered that exoplanets Kepler-138 c and Kepler-138 could be composed largely of water.



"We previously thought that planets that were a bit larger than Earth were big balls of metal and rock, like scaled-up versions of Earth, and that's why we called them super-Earths," explained study co-author Björn Benneke.&nbsp;



"However, we have now shown that these two planets, Kepler-138 c and d, are quite different in nature and that a big fraction of their entire volume is likely composed of water. It is the best evidence yet for water worlds, a type of planet that was theorized by astronomers to exist for a long time."



Video Credit: NASA Goddard



Image Credit: NASA, ESA, and Leah Hustak (STScI)



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



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.

Two distant planets may be "water worlds"

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Satellites reveal how Earth's systems are interconnected Today’s Video of the Day from <a href="https://www.nasa.gov/goddard">NASA Goddard</a> describes Earth’s interconnected systems, and how this network is affected by rising temperatures.&nbsp;



During 2020, average global temperatures matched the hottest year on record. The hurricane season was also record-breaking, with many of the storms intensifying at extraordinary speeds. Hot water in the ocean is fuel for hurricanes. The satellite data shows that it's all one interconnected system showing how Satellites reveal how Earth's systems are interconnected.



According to NASA, dust swept up from Northern Africa plays a major role in the formation of hurricanes, and is also a key source of fertilization in the Amazon rainforest. As a result of<a href="https://www.earth.com/news/seagrass-wasting-disease-is-fueled-by-climate-change/"> climate</a> change, dust plumes are expected to decline, which will have an effect on vegetation far away.&nbsp;



Images from Earth-observing satellites show how the world’s plant life is affected by natural disasters, fires, and deforestation. Satellites also reveal how widespread changes in vegetation impact waterways,&nbsp; the climate, air quality. Satellites communicate by using radio waves to send signals to the antennas on the Earth. "Earth From Space" is a groundbreaking two-hour special that reveals a spectacular new space-based vision of our planet. 



Video Credit: NASA Goddard&nbsp;



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



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.

Satellites reveal how Earth's systems are interconnected

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Today’s Video of the Day from the <a href="https://welcome.miami.edu/">University of Miami</a> Rosenstiel School of Marine and Atmospheric Science explores how changes in water temperatures have affected tiger shark habitats and movements in the North Atlantic Ocean. The study reveals that rising temperatures have caused the sharks to shift toward the poles over the past 40 years.



“Tiger shark annual migrations have expanded poleward, paralleling rising water temperatures,” explained study lead author Neil Hammerschlag. “These results have consequences for tiger shark conservation, since shifts in their movements outside of marine protected areas may leave them more vulnerable to commercial fishing.”



The researchers analyzed nine years of tracking data from satellite-tagged tiger sharks, combined with four decades of conventional tag and recapture data provided by National Oceanic and Atmospheric Administration (NOAA) Cooperative Shark Tagging Program.



The experts found that during the last decade of record heat, for every one-degree Celsius increase in water temperatures, tiger sharks migrated further poleward by over 400 kilometers. They also migrated two weeks earlier than usual to waters off the northeastern coast of the United States.



“Given their role as apex predators, these changes to tiger shark movements may alter predator-prey interactions, leading to ecological imbalances, and more frequent encounters with humans,” concluded Professor Hammerschlag.



Video Credit: University of Miami Rosenstiel School of Marine and Atmospheric Science



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



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.

Tiger sharks are shifting poleward as temperatures rise

Today’s Video of the Day from the University of Miami...

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> is focused on the melt ponds that emerge during the spring and summer on the Greenland Ice Sheet, which is the largest ice mass in the northern hemisphere.



"Melt ponds are vast pools of open water that form on both sea ice and ice sheets and are visible as turquoise-blue pools of water in this Copernicus Sentinel-2 image," says ESA.



"When snow and ice melts atop glaciers, water flows in channels and streams and collects in depressions on the surface. These melt ponds can speed up the melting of the surrounding ice since they greatly reduce the ice’s ability to reflect sunlight."



"This can create a positive feedback where an increasing number of melt ponds absorb more heat which causes ice cover to melt even faster."



According to ESA, Greenland has been hit with a late-season heatwave that began in early September. This caused the type of melt event that usually occurs in the middle of summer.



"In a recent paper published in Nature Climate Change, scientists found that major sea-level rise from the melting of the Greenland ice cap is now ‘inevitable’ even if the burning of fossil fuels were to halt overnight," says ESA. "Using satellite observations of Greenland ice loss and ice cap from 2000 to 2019, the team found the losses will lead to a minimum rise of 27 cm regardless of climate change."



Video Credit: ESA&nbsp;



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



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.

Melt ponds on the Greenland Ice Sheet

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> describes a new map of Mars that is providing insight into the planet’s watery past. The map also reveals where future missions could safely land on Mars.&nbsp;



The map has been created over the last decade using observations of water-rich rocks and mineral deposits. The images were captured by ESA’s Mars Express and NASA’s Mars Reconnaissance Orbiter.



"A big surprise is the prevalence of these minerals, with the map revealing hundreds of thousands of water-affected locations in the oldest parts of the planet," says ESA. "The new data will help answer exciting questions about Mars’ climate history, whether water was globally persistent or confined to short, intense episodes, and whether the conditions were ever suitable for life."



"Specifically, the map shows the locations and abundances of aqueous minerals. These are from rocks that have been chemically altered by the action of water in the past, and have typically been transformed into clays and salts."



According to John Carter of the Institut d’Astrophysique Spatiale (IAS), our collective understanding of Mars has been oversimplified. He explained that planetary scientists have tended to think that only a few types of clay minerals on Mars were created during its wet period, then as the water gradually dried up, salts were produced across the planet.



The new map shows that the composition of Mars is much more complicated than what we thought. For example, while many salts formed after Martian clays, there are some salts that are presumed to be older than some of the clays.&nbsp;



“The evolution from lots of water to no water is not as clear cut as we thought, the water didn’t just stop overnight. We see a huge diversity of geological contexts, so that no one process or simple timeline can explain the evolution of the mineralogy of Mars. That’s the first result of our study. The second is that if you exclude life processes on Earth, Mars exhibits a diversity of mineralogy in geological settings just as Earth does,” said Carter.



Video Credit: ESA



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



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.

The history of Mars is much more complex than we thought

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Today's Video of the Day from the <a href="https://www.stowers.org/">Stowers Institute for Medical Research</a> describes how cavefish adapted to a sedentary lifestyle over tens of thousands of years. 



The experts found that the muscle metabolism of cavefish has been genetically reprogrammed over time. As a result, the animals have experienced major changes in their morphology and behavior. Despite these changes, however, the cavefish remain healthy and fit.



The research may provide new clues about the evolutionary consequences of prolonged physical inactivity in humans.&nbsp;



“It’s no surprise that people are moving less and less as technology has advanced,” said Rohner. “With cavefish, we have a unique system where we can study what might happen if people remained couch potatoes over very, very long periods of time.”



Video Credit: Stowers Institute for Medical Research



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



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.

Cavefish are healthy despite their sedentary lifestyle

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Today’s Video of the Day from <a href="https://earthobservatory.nasa.gov/">NASA Earth Observatory</a> some of the most incredible waves in the world, as seen by Landsat satellites.



"With more than 370,000 miles of coastline on Earth, there are plenty of places where epic waves build up, curl over, and hurtle toward the shore.- much to the thrill of surfers," says NASA. "There are some places where these waves are so magnificent that they can be seen from space."



"With the broad perspective of satellites, we can see how these iconic waves develop into the world’s tallest, longest, fastest, and heaviest."



Video Credit: NASA Earth Observatory&nbsp;



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



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.

Satellites capture the world's biggest and fastest waves

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> describes why satellite images and measurements of our planet have become "essential to our survival, offering a new outlook of our world."&nbsp;



Rising sea levels pose one of the biggest societal threats associated with climate change. According to ESA, satellite altimeter missions such as Copernicus Sentinel-6 are essential in monitoring global and regional changes in sea level.



"Unbeknown to many, the island of Crete, Greece, plays an important role in the Copernicus satellite altimetry constellation and on an international stage," reports ESA.



"Satellite altimetry data have to be continuously monitored at the ESA’s Permanent Facility for Altimetry Calibration where different techniques have pioneered the use of transponders to provide the best measurements to validate satellite altimeters in space soon after launch."



Dr. Craig Donlon explains that, by understanding planet Earth through satellite measurements, we are able to find evidence of change.&nbsp;



Video Credit: European Space Agency&nbsp;



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

Satellites have become essential to our survival

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