CLIMATE - Four-degrees briefing for the World Bank: The risks of a future without climate policy

Humankind's emissions of greenhouse gases are breaking new records every year. Hence we're on a path towards 4-degree global warming probably as soon as by the end of this century. This would mean a world of risks beyond the experience of our civilization - including heat waves, especially in the tropics, a sea-level rise affecting hundreds of millions of people, and regional yield failures impacting global food security. These are some of the results of a report for the World Bank. The poorest in the world are those that will be hit hardest, making development without climate policy almost impossible, the researchers conclude.

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http://www.sciencedaily.com/releases/2012/11/121119104842.htm