Many debates about global warming seem to boil down to appeals to authority, with one side or the other citing some famous scientist, or group of them, to buttress a particular argument. The tone is often, “My expert is better than yours!”
Against this backdrop, some analysts have been trying for several years to get a firm handle on where climate researchers come down, as a group, on the central issues in the global-warming debate: Is the earth warming up, and if so, are humans largely responsible?
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