The G-20 summit in St. Petersburg was dominated by disagreements about Syria. But leaders were also busy agreeing on something they rarely find common ground on: climate change. Thirty-five nations and the European Union decided to curb hydrofluorocarbons, a set of powerful heat-trapping gases used in refrigeration, air conditioning, heat pumps, and insulation.
Your Refrigerator Is Heating the Atmosphere
But a little-known accord struck at the G2-0 summit may soon change that.
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