Old Rocks
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Knight Science Journalism Tracker Blog Archive A climate change tipping point: Plant growth, once boosted by warming and increased CO2, may now be declining
A climate change tipping point: Plant growth, once boosted by warming and increased CO2, may now be declining
Global climate change, as many have observed, is a story that does not break; it oozes. Yet in todays Science comes a climate change story that does, in a sense, break. To wit: the increased plant productivity caused by warming temperature, increased carbon dioxide and shifting rainfall pattterns has run out and the curve has reversed slope. Whereas plant productivitythe amount of atmospheric carbon taken up by plantsincreased by about 6 percent during the 1980s and 90s, it has since fallen by about 1 percent.
A climate change tipping point: Plant growth, once boosted by warming and increased CO2, may now be declining
Global climate change, as many have observed, is a story that does not break; it oozes. Yet in todays Science comes a climate change story that does, in a sense, break. To wit: the increased plant productivity caused by warming temperature, increased carbon dioxide and shifting rainfall pattterns has run out and the curve has reversed slope. Whereas plant productivitythe amount of atmospheric carbon taken up by plantsincreased by about 6 percent during the 1980s and 90s, it has since fallen by about 1 percent.