The concern, he said, is that the current rise in carbon dioxide levels—driven by human activity over the last 200 years, mostly the burning of fossil fuels—is causing unprecedented global warming and putting West Antarctica on the fast track to melting.
..."Even if it might take a thousand years or more for the West Antarctic Ice Sheet to disappear, the melting before then could be significant enough that humans should really be taking note ... as we worry about our future generations," Powell said.
- "Great polar melt-off feared", William Mullen, Chicago Tribune
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