Plant die-off study faces questions
Estimating accurately the impact of climate changes on plant life is important for understanding global food security, biofuel production and the carbon cycle A study on plant productivity that said drought and global warming were killing off plants worldwide is now being questioned by a new study.
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“Happy, warm and comfortable”
Since: Oct 10
Mountain retreat, SE Spain
#1 Aug 27, 2011
"One of the key issues raised by critics was how the Zhao and Running study found a 0.34 per cent reduction in the southern hemisphere's plant productivity, offset slightly by a 0.24 percent increase in the northern hemisphere, for a net decline of 0.1 percent over a 10-year period.
"This is the proverbial needle in a haystack," says Simone Vieira, co-author and researcher at the State University of Campinas, Brazil.
"There is no model accurate enough to predict such minute changes over such short time intervals, even at hemispheric scales."
I'm sure that scientists doing the studies aren't too worried about the outcome as long as their salaries arrive regularly.
"This is science, where you take one step forward and two steps back," he says. "It's important for this to-and-fro to be able to play itself out."
All jolly good fun at someone elses expense.
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