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This map shows how the world has been hurt by climate change so far

The U.N. Intergovernmental Panel on Climate Change approved a new report over the weekend on the risks of climate change — a crucial topic, since while no serious commentators question the scientific basis of global warming, there are some who hope that the consequences will be manageable. The report summarizes what we know about those consequences. Scientists are very confident, for example, that climate change will lead to disease, wildfire and, of course, rising seas.

Yet the report doesn’t only include forecasts. It also reviews how warmer temperatures have affected us so far, as shown in the above map. On every continent, climate change has brought about floods or droughts. It has also caused glaciers to recede or otherwise reduced accumulations of snow and ice. In every ocean, warmer and more acidic water has already damaged marine ecosystems. As fish move northward and southward to find colder water, people who live in tropical areas are likely to lose an important source of wealth and food. There is less evidence showing how changing temperatures have affected agriculture so far, although the report projects that yields of wheat, rice and corn will decline as the planet warms. For now, people living in the Arctic bear the most severe consequences of climate change, though those effects will become more widespread with time.

Click below for the report.

Max Ehrenfreund | March 31 at 10:25 am
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