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Billion Dollar Weather Disasters Smash US Record

Posted on Dec 09, 2011

America smashed the record for billion-dollar weather disasters this year with a deadly dozen - and counting.

With an almost biblical onslaught of twisters, floods, snow, drought and wildfire, the U.S. in 2011 has seen more weather catastrophes that caused at least $1 billion in damage than it did in all of the 1980s, even after the dollar figures from back then are adjusted for inflation.

The National Oceanic and Atmospheric Administration added two disasters to the list Wednesday, bringing the total to 12. The two are the Texas, New Mexico and Arizona wildfires and the mid-June tornadoes and severe weather.

NOAA uses $1 billion as a benchmark for the worst weather disasters.

Extreme weather in America this year has killed more than 1,000 people, according to National Weather Service Director Jack Hayes. The dozen billion-dollar disasters alone add up to $52 billion.

The old record for $1 billion disasters was nine, in 2008.

Hayes, a meteorologist since 1970, said he has never seen a year for extreme weather like this, calling it "the deadly, destructive and relentless 2011."

And this year's total may not stop at 12. Officials are still adding up the damage from the Tropical Storm Lee and the pre-Halloween Northeast snowstorm, and so far each is at $750 million. And there's still nearly a month left in the year.

Scientists blame an unlucky combination of global warming and freak chance. They say even with the long-predicted increase in weather extremes triggered by manmade climate change, 2011 in the U.S. was wilder than they predicted. For example, the six large outbreaks of twisters can't be attributed to global warming, scientists say.

"The degree of devastation is extreme in and of itself, and it would be tempting to say it's a sign of things to come, though we would be hard-pressed to see such a convergence of circumstances occurring in one single year again for a while," said Jerry Meehl, a climate scientist at the National Center for Atmospheric Research in Boulder, Colo.

Another factor in the rising number of billion-dollar calamities: More people are living in areas prone to disasters.

The number of weather catastrophes that pass the billion-dollar mark when adjusted into constant dollars is increasing with each decade. In the 1980s, the country averaged slightly more than one a year. In the 1990s, it was 3.8 a year. It jumped to 4.6 in the first decade of this century. And in the past two years, it has averaged 7.5.

Other years had higher overall damage figures because of one gargantuan disaster, including Hurricane Katrina in 2005 and a 1988 drought.

But this isn't just about numbers.

"Each of these events is a huge disaster for victims who experience them," NOAA Administrator Jane Lubchenco said in an email. "They are an unprecedented challenge for the nation."

Half the billion-dollar disasters were tornado outbreaks in one of the deadliest years on record. More than 540 people were killed in those six tragedies. In four days in April, there were 343 tornadoes in the largest outbreak on record, including 199 in one day, which is another record.

Texas had more than a million acres burned by wildfire, a record for the state, and Oklahoma set a record for the hottest month ever in the U.S. The Ohio Valley had triple the normal rainfall, which caused major flooding along the Mississippi River.

"Too little water in the South, too much water in the North," said Andrew Weaver, a climate scientist at the University of Victoria in Canada. "It's a story we are hearing more and more often."

That's why the world has to do two things, said Princeton University geological sciences professor Michael Oppenheimer: try to slow global warming by reducing greenhouse gas emissions and prepare better for extreme weather.

Publication Date	12/07/2011
Source:	Associated Press

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