Warming toll: 1 degree hotter, trillions of tons of ice gone by Seth Borenstein

Since leaders first started talking about tackling the problem of climate change, the world has spewed more heat-trapping gases, gotten hotter and suffered hundreds of extreme weather disasters. Fires have burned, ice has melted and seas have grown.

The first United Nations diplomatic conference to tackle climate change was in Rio de Janeiro in 1992. Here’s what’s happened to Earth since:

— The carbon dioxide level in the air has jumped from about 358 parts per million to nearly 412, according to the U.S. National Oceanic and Atmospheric Administration. That’s a 15% rise in 27 years.

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Warming toll: 1 degree hotter, trillions of tons of ice gone by Seth Borenstein

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