Droughts Linked To Global Warming

these papers don't prove anything

Proofs are for mathematicians. You can't make a "proof" that we aren't living in some Matrix-style virtual world, where the climate is controlled by The Architect. What scientists can do, however, is to establish the most likely hypothesis to explain some observed data, and provide error bars for acceptance of said hypothesis. And that's pretty important.

Warmer temperatures cause greater evaporation and greater precipitation. Period.... anybody who is predicting more droughts, on average, due to warmer temperatures is -- ahem -- all wet.

Not really, because as you point out changes are regional in scope. That means that it is possible for some regions to get hotter, some colder, some wetter, some drier. If the regions that already have a large rainfall get a lot more rain (enough to significantly increase the global average), and regions that are on the drought boundary get slightly less rain, then the number of droughts will increase, even though the global average rainfall has also increased. I'm not saying that is what will or won't happen, but logically the two outcomes of "greater global rainfall" and "increased drought" are not mutually exclusive.

Source: http://rss.slashdot.org/~r/Slashdot/slashdotScience/~3/3WD35374Pec/droughts-linked-to-global-warming

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