MSNBC.com

Climate report maps out A-highway to extinction-

Dire predictions includes loss of species, increasing scarcity of water

WASHINGTON - A key element of the second major report on climate change being released Friday in Belgium is a chart that maps out the effects of global warming with every degree of temperature rise, most of them bad.

There’s one bright spot: A minimal heat rise means more food production in northern regions of the world.

However, the number of species going extinct rises with the heat, as does the number of people who may starve, or face water shortages, or floods, according to the projections in the draft report obtained by The Associated Press.

Some scientists are calling this degree-by-degree projection a “highway to extinction.”

A-Major extinctions around the globe-
The report says global warming has already degraded conditions for many species, coastal areas and poor people. With a more than 90 percent level of confidence, the scientists in the draft report say man-made global warming “over the last three decades has had a discernible influence on many physical and biological systems.”

But as the world’s average temperature warms from 1990 levels, the projections get more dire. Add 1.8 degrees Fahrenheit — 1 degree Celsius is the calculation scientists use-and between 400 million and 1.7 billion extra people can-t get enough water, some infectious diseases and allergenic pollens rise, and some amphibians go extinct. But the world’s food supply, especially in northern areas, could increase. That’s the likely outcome around 2020, according to the draft.

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