The IEA is to announce a decrease in anthropogenic emissions by 2.6% in the last 12 months in early October,the announcement has been brought forward for the UNFCC meeting in Thailand.
Global emissions of the commonest man-made greenhouse gas carbon dioxide will fall by the sharpest rate in 40 years in 2009 following tumbling factory output, the International Energy Agency said on Monday.
The world must use the drop of about 2.6 percent to drive a global fight against climate change, rather than allow emissions to rise again as after previous recessions, Fatih Birol, IEA chief economist, told Reuters in an interview.
"The biggest fall (in about 40 years) was in 1981, at 1.3 percent, after oil price shocks and economic troubles," Birol said. "We estimate this year the fall will be around twice that."
As these are significant numbers(and the IPCC) tell us they can calculate the manmade proportion in the observations to 4 significant muners to the right of the decimal point,one would expect the "signal" will be observable in the Mauna loa record,singularities which as in essence a velocity inversion are a good test of the accuracy of measurements.