Three Greenhouse Gases, Three All-Time Highs

The extreme weather. The melting glaciers. The weirdly warm oceans. They’re all the product of global warming, which is being driven by the release of the three most important heat-trapping gases: carbon dioxide, methane and nitrous oxide.And according to a new study from the National Oceanic and Atmospheric Administration, emissions of those three greenhouse gases continued to surge last year to historic…