Global warming too late to reverse course?

Risks of Global Warming Rising: Is It Too Late to Reverse Course?

The risk of catastrophic climate change is getting worse, according to a new study from scientists involved with the United Nations Intergovernmental Panel on Climate Change (IPCC). Threats—ranging from the destruction of coral reefs to more extreme weather events like hurricanes, droughts and floods—are becoming more likely at the temperature change already underway: as little as 1.8 degree Fahrenheit (1 degree Celsius) of warming in global average temperatures.

"Most people thought that the risks were going to be for certain species and poor people. But all of a sudden the European heat wave of 2003 comes along and kills 50,000, [Hurricane] Katrina comes along and there's a lot of data about the increased intensity of droughts and floods. Plus, the dramatic melting of Greenland that nobody can explain certainly has to increase your concern," says climatologist Stephen Schneider of Stanford University, who co-authored the research published this week in the Proceedings of the National Academy of Sciences as well as in several IPCC reports. "Everywhere we looked, there was evidence that what was believed to be likely has happened. Nature has been cooperating with [climate change] theory unfortunately."

from: Scientific American magazine

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