"Many climate scientists see only a remote chance that the warming will be that low, with the published evidence suggesting that an increase above 5 degrees Fahrenheit is more likely if carbon dioxide doubles. The level of carbon dioxide, the main greenhouse gas, is up 41 percent since the Industrial Revolution, and if present trends continue it could double in a matter of decades. Warming the entire planet by 5 degrees Fahrenheit would add a stupendous amount of energy to the climate system. Scientists say the increase would be greater over land and might exceed 10 degrees at the poles. They add that such an increase would lead to widespread melting of land ice, extreme heat waves, difficulty growing food and massive changes in plant and animal life, probably including a wave of extinctions."
Posted on: Tue, 20 Aug 2013 02:22:47 +0000
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