In 2009, countries worldwide gathered in Copenhagen with promises to reduce greenhouse gas emissions that fuel climate change. But a recent study paints a disappointing picture of progress: a lot of pledges, not a lot of follow-through. Did many countries drop the ball on their climate commitments? Copenhagen summit 2009 climate goals The Copenhagen Summit in 2009, formally known as the 15th session of the Conference of the Parties (COP15) to the United Nations Framework Convention on Climate Change (UNFCCC), was a critical event with high expectations...