From the NY Times Green blog we learn that a study published in the journal Science shows that climate change has caused a noticeable reduction in global plant growth
“Earth has done an ecological about-face,” a NASA statement said. “Global plant productivity that once flourished under warming temperatures and a lengthened growing season is now on the decline, struck by the stress of drought.”
Research over the past two decades had shown terrestrial plant growth on the rise, with higher temperatures and longer growing seasons linked to a 6 percent increase in global plant productivity from 1982 to 1999. Between 2000 and 2009, terrestrial plant growth declined by 1 percent.
“This is a pretty serious warning that warmer temperatures are not going to endlessly improve plant growth,” Steven Running, a biologist at the University of Montana in Missoula and co-author of the report, said in the NASA statement.
One of the arguments that the ’skeptics’ have routinely trotted out is that a warmer Earth will inevitably mean greater harvests.
Looks like they’re wrong. Again.