MODERN TIMES : The threat is real
A smoking gun looms large in the Arctic
Posted: September 12, 2009 at 7:01 a.m.
The evidence that global warming is real and human-caused is as plain as the nose on your face. For one thing, it's hard to see how the temperature could do anything but rise, given that humans have increased the carbon dioxide (CO2) content of the atmosphere by nearly 40 percent since 1900, that CO2 is a major greenhouse gas, and that natural greenhouse gases cause a temperature rise of 60 degrees. For several other things, global temperatures have risen by 1.4 degrees, snowpack is declining globally, biological zones are migrating north, the number of intense hurricanes is increasing, coral reefs are vanishing, forest fires are increasing, ocean acidity is increasing, ocean levels are rising, and so forth.
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Opinion, Pages 4 on 09/12/2009
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