Yale Environment 360: A global temperature increase of 1.5 degrees Celsius could unleash more than 1,000 gigatons of carbon and methane currently trapped beneath Siberian permafrost and accelerate global climate change, a new study says. In a study conducted in a frozen cave in Siberia, researchers analyzed stalactites and stalagmites which, since they form only when rainwater and snowmelt drip into the caves, provide a glimpse into 500,000 years of changing permafrost conditions. According to their findings, records...