Today marks the third day of COP21, a key milestone in the global effort to combat climate change. For the next two weeks, representatives from more than 190 countries will work towards creating a legally binding and universal agreement that spells out how countries will cooperate on climate change for decades to come. A strong Paris agreement can send the signal to the world that the global transformation to a climate-resilient, zero-carbon economy is underway. ... Read more about Understand COP21 in these 7 graphics
That's when the world's oceans will be empty of fish, predicts an international team of ecologists and economists. The cause: the disappearance of species due to overfishing, pollution, habitat loss, and climate change.
Oceans have absorbed up to 30 percent of human-made carbon dioxide around the world, storing dissolved carbon for hundreds of years. As the uptake of carbon dioxide has increased in the last century, so has the acidity of oceans worldwide. Since pre-industrial times, the pH of the oceans has dropped from an average of 8.2 to 8.1 today. Projections of climate change estimate that by the year 2100, this number will drop further, to around 7.8 — significantly lower than any levels seen in open ocean marine communities today. ... Read more about Ocean acidification may cause dramatic changes to phytoplankton
It was almost 20 years ago that Ma Jun sat and watched the rainbow-coloured River Fen, in Shanxi province. As he turned to the skies in this coal and industrial heartland of north China he could see dozens of chimneys bellowing out their fumes.