Warmer is not always wetter

Compared to global warming caused by solar radiation, global warming caused by greenhouse gases results in less rainfall, simulations suggest

By Erin Wayman, 13:05 PM January 30, 2013

Not all warming is the same. For the same increase in temperature, global warming caused by greenhouse gases results in less rainfall than does warming caused by the sun’s radiation, climate simulations suggest.

Because wet places should get more rain as the climate heats up, the new results may explain the mystery of why a warm period 1,000 years ago was wetter than the warm late 20th century. Jian Liu of the Chinese Academy of Sciences in Nanjing and colleagues describe these results in t...

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