Archive for the 'General' Category

The Number of Atlantic Ocean Tropical Storms has Doubled

Sunday, July 29th, 2007

The number of tropical storms developing annually in the Atlantic Ocean more than doubled over the past century, with the increase taking place in two jumps, researchers say.
The increases coincided with rising sea surface temperature, largely the byproduct of human-induced climate warming, researchers Greg J. Holland and Peter J. Webster concluded. Their findings were being published online Sunday by Philosophical Transactions of the Royal Society of London.

An official at the National Hurricane Center called the research “sloppy science” and said technological improvements in observing storms accounted for the increase.

From 1905 to 1930, the Atlantic-Gulf Coast area averaged six tropical cyclones per year, with four of those storms growing into become hurricanes.

The annual average jumped to 10 tropical storms and five hurricanes from 1931 to 1994. From 1995 to 2005, the average was 15 tropical storms and eight hurricanes annually.

Even in 2006, widely reported as a mild year, there were 10 tropical storms.

“We are currently in an upward swing in frequency of named storms and hurricanes that has not stabilized,” said Holland, director of mesoscale and microscale meteorology at the National Center for Atmospheric Research in Boulder, Colo.

“I really do not know how much further, if any, that it will go, but my sense is that we shall see a stabilization in frequencies for a while, followed by potentially another upward swing if global warming continues unabated,” Holland said.

It is normal for chaotic systems such as weather and climate to move in sharp steps rather than gradual trends, he said.

“What did surprise me when we first found it in 2005 was that the increases had developed for so long without us noticing it,” he said in an interview via e-mail.

Holland said about half the U.S. population and “a large slice” of business are “directly vulnerable” to hurricanes.

“Our urban and industrial planning and building codes are based on past history,” he said. If the future is different, “then we run the very real risk of these being found inadequate, as was so graphically displayed by (Hurricane) Katrina in New Orleans.”

Hurricanes derive their energy from warm ocean water. North Atlantic surface temperature increased about 1.3 degrees Fahrenheit during the 100-year period studied. Other researchers have calculated that at least two-thirds of that warming can be attributed to human and industrial activities.

Some experts have sought to blame changes in the sun. But a recent study by British and Swiss experts concluded that “over the past 20 years, all the trends in the sun that could have had an influence on the Earth’s climate have been in the opposite direction to that required to explain the observed rise in global mean temperatures.”

As the sea surface temperatures warm, they cause changes in atmospheric wind fields and circulations, and these changes are responsible for the changes in storm frequency, Holland said.

Chris Landsea, science and operations officer at the National Oceanic and Atmospheric Administration’s National Hurricane Center, said the study is inconsistent in its use of data.

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Threats Made to Leader of EPA-Member Group

Friday, July 27th, 2007

The head of the Environmental Protection Agency says he will investigate a threatening letter sent by the leader of an EPA-member group, vowing to “destroy” the career of a climate skeptic.

During a Capitol Hill hearing yesterday, Sen. James M. Inhofe, Oklahoma Republican and ranking member of the Environment and Public Works Committee, confronted EPA Administrator Stephen L. Johnson about the strongly-worded letter written July 13 by Michael T. Eckhart, president of the American Council on Renewable Energy (ACORE) that was sent to Marlo Lewis, senior fellow of the Competitive Enterprise Institute (CEI).

“It is my intention to destroy your career as a liar,” Mr. Eckhart wrote. “If you produce one more editorial against climate change, I will launch a campaign against your professional integrity. I will call you a liar and charlatan to the Harvard community of which you and I are members. I will call you out as a man who has been bought by Corporate America. Go ahead, guy. Take me on.”

CEI does not dispute climate change, however it differs with certain environmental groups, including ACORE, on the causes. After Mr. Inhofe read Mr. Eckhart’s comments, which were first reported by Inside the Beltway two weeks ago, the EPA chief promised to probe the matter.

“Statements like this are of concern to me. I am a believer in cooperation and collaboration across all sectors,” Mr. Johnson assured. “This is an area I will look into for the record.”

When Mr. Johnson confirmed that EPA is a member of ACORE, Mr. Inhofe asked if “it is appropriate to be a part of an organization that is headed up by a person who makes this statement.”

Late yesterday, Mr. Inhofe announced he will send letters to the departments of Agriculture, Commerce, Energy, and EPA, urging them to “reconsider their membership of ACORE.”

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10,000 Homes Flooded, 50,000 Without Power & 150,000 Have No Water

Tuesday, July 24th, 2007

Servicemen and firefighters were battling to protect the electricity supplies of half a million people last night as the highest flood waters in memory continued to rise.

The Government announced an independent inquiry as water levels in the Thames and the Severn exceeded those of the devastating floods of 1947 and were forecast to rise to 20ft (6m) higher than normal.

More than 10,000 families have been left homeless in the West Country and Thames Valley over the past four days and thousands of others have been told to leave their homes as a mass of water surges down river. Electricity supplies to 50,000 homes have been cut and 150,000 homes have been left without water.

The Times was told last night that the utility companies were warned by the Government seven years ago that they needed to make key facilities flood-proof to protect supplies. The Castlemeads power station near Tewkesbury, Gloucestershire, was shut down yesterday morning, however, leaving more than 50,000 homes without electricity. Supplies to a further 500,000 homes were under threat as a 250-strong force of military personnel and firefighters attempted to prevent rising waters overwhelming the Walham substation.

There was a glimmer of hope last night when the Environment Agency said that the Severn appeared to have peaked two inches below the level that would have overwhelmed the substation. An agency spokesman warned, however, that it was still a “dangerous situation”.

The level of the Thames in Oxford may not peak until early Wednesday. Eight severe flood warnings and 50 other flood warnings remained in place last night as further rain added to the misery. Emergency planning teams met in Cambridgeshire after a flood warning was placed on the Great Ouse and the police prepared for possible floods around St Neots.

Hundreds more troops have been put on standby to help the police and fire services to rescue trapped families and provide humanitarian aid to villages that have been cut off since Friday night. Defence sources said that regional commanders were working at police headquarters in the worst-affected areas and providing troops and equipment whenever requested.

More than 350,000 people in Gloucester were told that they would be left without water after a treatment plant was overwhelmed by the floods. The police were called to guard supplies of bottled water at supermarkets after fights between customers. Severn Trent Water said last night that the households could be without water for up to two weeks.

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Sen. Barbara Boxer is Heading to Greenland to See Global Warming Effects

Monday, July 23rd, 2007

Sen. Barbara Boxer is heading north this weekend – way north – to Greenland with a bipartisan delegation of senators to see firsthand the effects of global warming.

Boxer, D-Calif., chairs the Environment and Public Works Committee and hopes to bring a bill to combat climate change to the Senate floor possibly after the August recess. About half a dozen different global warming bills – ranging from those with firm economy-wide emission reduction targets to more narrow measures – have been introduced this year.

The lawmakers actually picked a pretty good time of the year to go: the forecast up there calls for highs in the low 50s.

Boxer and her group will tour the Kangia Ice Fjord, have dinner with the Danish environmental minister, Connie Hedegaard, and take a boat tour of Disko Bay where they will see the world’s largest glaciers.

Accompanying Boxer on the trip will be Democratic senators Barbara Mikulski and Ben Cardin of Maryland, Bill Nelson of Florida, Frank Lautenberg of New Jersey, Amy Klobuchar of Minnesota and Sheldon Whitehouse of Rhode Island. Republican senators are Johnny Isakson of Georgia and Bob Corker of Tennessee. Independent Sen. Bernie Sanders of Vermont also will attend. Richard Alley of Penn State University, the lead author on the United States Intergovernmental Panel on Climate Change will be the scientific advisor on the trip.

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Climate Change: Hurricanes Form in New Regions

Monday, July 16th, 2007

Global warming could trigger hurricanes, or tropical cyclones, over the Mediterranean sea, threatening one of the world’s most densely populated coastal regions, according to European scientists.Hurricanes currently form out in the tropical Atlantic and rarely reach Europe, but a new study shows a 3 degrees Celsius (5.4 degrees Fahrenheit) rise in average temperatures could set them off in the enclosed Mediterranean in future.

“This is the first study to detect this possibility,” lead researcher Miguel Angel Gaertner of the University of Castilla-La Mancha in Toledo, Spain, told Reuters on Monday.

“Most models in our study show increasing storm intensity and if you combine this with rising sea levels, as are projected, this could be damaging for many coastal settlements.”

As well as being home to millions, the Mediterranean coast is also a major centre of tourism, which would be under threat.

Factors influencing hurricanes include warm sea surface temperatures and atmospheric instability. In the past, they have been confined to a limited number of regions, such as the north Atlantic and north Pacific, where they are known as typhoons.

Recently, however, they have been forming in unusual places, which Gaertner sees as a clear danger signal.

In 2004, Hurricane Catarina formed in the south Atlantic and hit land in southern Brazil. A year later, Hurricane Vince formed next to the Madeira Islands and became the first to make landfall in Spain.

In a paper published in the American Geophysical Union Journal, Gaertner and colleagues from the Max Planck Institute for Meteorology in Hamburg, Germany, used a range of regional climate models to assess the chance of similar events in the Mediterranean.

They found rising temperatures pointed to increasing storm intensity and, in the case of the most sensitive computer model, a likelihood of strong hurricanes.

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