Even "moderate additional" greenhouse emissions are likely to push Earth past "critical tipping points" with "dangerous consequences for the planet," according to research conducted by NASA and the Columbia University Earth Institute.
With just 10 more years of "business as usual" emissions from the burning of coal, oil and gas, says the NASA/Columbia paper, "it becomes impractical" to avoid "disastrous effects."
The study appears in the journal Atmospheric Chemistry and Physics. Its lead author is James Hansen, director of NASA's Goddard Institute for Space Studies in New York.
The forecast effects include "increasingly rapid sea-level rise, increased frequency of droughts and floods, and increased stress on wildlife and plants due to rapidly shifting climate zones," according to the NASA announcement.
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