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Monday, April 30, 2012

Global water cycle intensification from climate disruption an imminent threat

Mother Jones today reports on new research that finds that the salinity of the world’s oceans is changing rapidly due to a warming atmosphere, and that this is resulting in an intensification of the global water cycle of evaporation and precipitation –- by an “incredible” 4 percent between 1950 and 2000. That's twice the rate predicted by models. 
These same models have long forecast that as a result of global climate disruption, dry areas of Earth will become drier and wet areas wetter. There will be more desertification and more flooding.  The availability of freshwater will change drastically – something that will be far more destabilizing to human societies and ecosystems than warming alone.  But it’s all happening much faster than the models predicted.  At this rate, the global water cycle will intensify by a frightening 24 percent in a 3°C warmer worldBut International Energy Agency warns that the world is on track for warming of 6°C by the end of the century.
If this new research is correct, we ain’t seen nuthin yet.
We must take action now.

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