Professor Sir Robert Watson is not optimistic that atmospheric concentrations of greenhouse gas (GHG) emissions will be reduced before there is a 2-degree Celsius increase, and possibly a much larger increase, in global temperatures above pre-industrial temperature levels, he said recently. “There is no evidence politically that we are moving there, so clearly one has to be quite concerned,” said Watson, the chief scientific adviser to the U.K. Department for Environment, Food and Rural Affairs. He made the comments at the Union Frontiers of Geophysics Lecture and during a later presentation at the AGU Fall Meeting in San Francisco in December.
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