Seasons Now Wetter AND Drier From Climate Change – Report

Researchers note that in the last 30 years wet seasons have become wetter and dry ones drier, as changes in the seasonal precipitation cycle continue, reports Tim Radford at the Climate News Network.  The study, published in Nature GeoScience,  examined rainfall data over the past 30 years, and found that the wet seasons were getting wetter, at the rate of almost a millimetre a day per century, while the dry seasons became drier with just over half a millimetre less in rainfall per day per century. And the gap between wet and dry seasons was widening at a rate of almost 1.5 millimetres per day per century.  Although rainfall patterns are complex, there is general agreement that such changes are taking place, with good physical reasons for doing so: a warmer world means more evaporation, and more precipitation. Furthermore, the authors say, simulations predict such a pattern and observations confirm it. “Even if the total amount of annual rainfall does not change significantly, the enhancement in the seasonal precipitation cycle could have marked consequences for the frequency of droughts and floods.” Welcome to the seesaw world of climate change, folks!

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Source

 

Warming Means Wetter and Drier – climate news network

http://www.climatenewsnetwork.net/2013/03/warming-means-wetter-weather-and-drier/

 

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Researchers note that in the last 30 years wet seasons have become wetter and dry ones drier, as changes in the seasonal precipitation cycle continue, reports Tim Radford at the Climate News Network.  The study, published in Nature GeoScience,  examined rainfall data over the past 30 years, and found that the wet seasons were getting wetter, at the rate of almost a millimetre a day per century, while the dry seasons became drier with just over half a millimetre less in rainfall per day per century. And the gap between wet and dry seasons was widening at a rate of almost 1.5 millimetres per day per century.  Although rainfall patterns are complex, there is general agreement that such changes are taking place, with good physical reasons for doing so: a warmer world means more evaporation, and more precipitation. Furthermore, the authors say, simulations predict such a pattern and observations confirm it. “Even if the total amount of annual rainfall does not change significantly, the enhancement in the seasonal precipitation cycle could have marked consequences for the frequency of droughts and floods.” Welcome to the seesaw world of climate change, folks!

Warming Means Wetter and Drier – climate news network

http://www.climatenewsnetwork.net/2013/03/warming-means-wetter-weather-and-drier/

 

Can miracles happen? Check out this nature album of incredible shots!  http://www.wherecoolthingshappen.com/36-perfectly-timed-animal-shots/

 

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About melharte

Mel (Mary Ellen) Harte is a biologist (PhD) and climate change educator. She co-authored the free online book, COOL THE EARTH, SAVE THE ECONOMY, available at www.CoolTheEarth.US, and writes the CLIMATE CHANGE THIS WEEK column at the HuffingtonPost. Living summers in the alpine Rockies, she is on the frontlines of watching what climate change can do. Her diagnostic digital photographs of wildflowers have appeared in numerous publications.
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