Ozone

Gizmodo reporter Maddie Stone writes that a new study by MIT researchers provides evidence that chloroform emissions rose 3.5 percent per year from 2010 to 2015 in East Asia. “If emissions continue to grow at 2010-2015 rates,” Stone writes, “the researchers estimate recovery of the ozone hole could be delayed by up to 8 years.”

New research from Prof. Susan Solomon has found that while banning the use of CFCs caused the ozone hole to shrink by 1.5 million square miles, carbon dioxide is still a major problem. “The chemicals responsible for the ozone problem break down in the atmosphere much more quickly than carbon dioxide connected to global warming does,” writes Faye Flam of Bloomberg View.