Global warming driving ocean salinity changes

I left the following comment at http://summitcountyvoice.com/2010/04/16/global-warming-driving-ocean-salinity-changes/#comment-2401

It is published at the moment so I hope I get an answer.

“As the near-surface atmosphere warms, it evaporates more water from and moves it to new regions where it’s released as rain or snow.” That means more rainfall/precipitation right? Well I just googled “Global warming causes desertification” (which is what we are always being told) and got 509,000 hits most appearing to support “Global warming causes desertification” When I google “Global warming stops desertification” I didn’t do so well. So I am puzzled, If there is more precipitation doesn’t that mean more fertility and a chance to for example, to return the Sahara Desert to its fertility of the Holocene Maximum? I am interested to hear some explanation. Cheers Roger http://www.rogerfromnewzealand.wordpress.com

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