Expect More Tornadoes Under Global Warming – study

Expect More Tornadoes Under Global Warming indicates a new study, which links warmer Pacific ocean temperatures to an increase in US tornadoes over the past 60 years, reports Cathy Griffin at Science World Report. In 2011 alone, tornadoes caused more than 550 deaths in the U.S. In addition, they contributed to $28 billion in property damage. Researchers surveyed 56,457 tornado-like events from 1950 to 2011. They found that when surface sea temperatures were warmer than average, the US experienced 20 percent more of the more powerful tornadoes, rated 2-5 on the commonly used scale, with 5 being the strongest. Location of the tornadoes also changed. With warmer temperatures, the tornadoes usually appeared to the west and north of tornado alley. With cooler temperatures, more tornadoes tracked from southern states, like Alabama into Tennessee, Illinois and Indiana. Sea temperature changes influence and change the route of the jet stream over the Pacific and US, with tornado-producing storms being triggered by and following the jet stream.

Join the swelling numbers of voters TELLING Congress they’ll vote for Clean Energy candidates here: http://signon.org/sign/we-are-the-clean-99?source=c.em.cp&r_by=487176 . This is an ongoing campaign (the next Congressional election is in 2 years!) so please, spread the word. It’s our way of telling Congress that a strong clean energy voting bloc is out there. This is how YOU can make a difference.

 

For more on Climate Change, check out my weekly column at the HuffingtonPost, Climate Change This Week : http://www.huffingtonpost.com/author/index.php?author=mary-ellen-harte

 

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Source

http://www.scienceworldreport.com/articles/10322/20131019/warmer-pacific-ocean-temperatures-mean-more-tornados.htm

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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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