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Another milder-than-normal season takes shape

During the active 2005 hurricane season, the usual doom-and-gloom prophets blamed the storms on global warming. "Nature's wrath," we were told, "hath been unleashed". Aided by a complaisant media, we were told this was our wakeup call, come to punish us for our SUV-driving ways.

Then disaster struck.  The 2006 season not only didn't live up to predictions, it wound up being one of the quietest seasons of the past century. No matter. We were told to ignore this year-long blip, told that 2007 would come roaring back with a vengeance.

And yet, here we are, two full months into the season, and not a single hurricane has formed. Not one. Just two mild tropical storms, one of which didn't even strike land, and a third storm which never went above subtropical status. Hurricane forecasters are busily downgrading their predictions for the rest of the season.

And so it goes. The sky isn't falling yet. But what about the future? Will global warming wreck all our beach-going vacations?

There are two schools of thought regarding the effects of climate change on hurricane science. The first begins with the fact that hurricanes require warm water to form. Global warming means warmer water, leading to the naive conclusion is that more hurricanes will form. The second school realizes that hurricanes are heat engines -- driven not by raw temperature, but by temperature differentials between regions. Global warming warms the arctic and temperate belts, but not the tropics. This reduces the total energy available for major storm formation. It also increases upper-level wind shear, which tends to tear apart storms before they grow too strong. This school believes the long term effects of global warming will be fewer, milder storms.

Climate change aside, hurricanes come and go in cycles. Professor William Gray, one of the nation's most respected hurricane forecasters, believes storm activity will remain high for the next several years, due simply to a long-term cycle of changing Atlantic currents. A team of researchers led by Dr. Chris Landsea of the National Hurricane Center goes further. In a paper published last year, they claim storm rates have not risen over the past 100 years, but only that improved monitoring technology results in registering storms which would have previously been missed. And professors Vecchi and Soden's research on wind shear suggests no long-term storm activity increase should be expected.

I don't know about the rest of you, but I'm not selling my ocean-front condo just yet.


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RE: Here's the reference...
By Chillin1248 on 7/31/2007 3:28:51 PM , Rating: 2
Additional link (modified version):
http://video.google.com/videoplay?docid=-302884751...

List of scientists included in the program:

Syun-Ichi Akasofu - Professor and Director, International Arctic Research Center

Tim Ball - Head of the Natural Resources Stewardship Project (Misattributed as Professor from the Department of Climatology, University of Winnipeg. Ball left his faculty position in the Department of Geography in 1996; the University of Winnipeg has never had a Department of Climatology.)

Nigel Calder - Former Editor, New Scientist from 1962 to 1966

John Christy - Professor, Department of Atmospheric Science, University of Alabama in Huntsville and a Lead Author of Chapter 2 of the IPCC Third Assessment Report

Ian Clark - Professor, Department of Earth Sciences, University of Ottawa

Piers Corbyn - Weather Forecaster, Weather Action

Paul Driessen - Author: Eco-Imperialism: Green Power, Black Death

Eigil Friis-Christensen - Director, Danish National Space Center and Adjunct Professor, University of Copenhagen (who has since said his results were misused in the programme)

Nigel Lawson - Former UK Chancellor of the Exchequer

Richard Lindzen - Professor, Department of Meteorology, M.I.T.

Patrick Michaels - Research Professor, Department of Environmental Sciences, University of Virginia

Patrick Moore - Co-founder, Greenpeace

Paul Reiter - Professor, Department of Medical Entomology, Pasteur Institute, Paris

Nir Shaviv - Professor, Institute of Physics, University of Jerusalem

James Shikwati - Economist, Author, and CEO of The African Executive

Frederick Singer - Professor Emeritus, Department of Environmental Sciences, University of Virginia (Misattributed in the film as Former Director, U.S. National Weather Service. From 1962-64 he was Director of the National Weather Satellite Service.)

Roy Spencer - Weather Satellite Team Leader, NASA

Philip Stott - Professor Emeritus, Department of Biogeography, University of London

Carl Wunsch - Professor, Department of Oceanography, M.I.T. (who has since repudiated the programme)


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Chillin


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