Environment

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This Monday Sept. 13, 2010, satellite image provided by NOAA shows Hurricane Igor, left, east of the Northern Leeward Islands and Tropical Storm Julia, right, south-southwest of the Cape Verde Islands. Igor threatened to become a Category 5 storm Monday as it churned far out over the Atlantic Ocean. (AP Photo/NOAA)

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This undated handout photo provided by Samantha Joye, UGA Department of Marine Sciences, shows a layer of oil on a sediment core. Researchers are finding oil dripping "all over the place" on the Gulf of Mexico sea floor, some as much as two inches thick. A University of Georgia scientific cruise is collecting at least ten instances of what appears to be fresh oil on the sea floor emanating out from the site of BP oil rig disaster. (AP Photo/Samantha Joye)

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A helicopter flies over the Flatiron fire burning northwest of Loveland, Colo., Sunday, Sept. 12, 2010. Fire officials are telling residents near Flatiron Reservoir and Carter Lake to leave their homes and evacuate to Loveland in northern Colorado because of a 30-acre wildfire. (AP Photo/The Coloradoan, Dawn Madura)

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Smoke raises in the air from a wildland fire as seen from Highway 257 near the town of Johnstown, Colo., Sunday Sept. 12, 2010. Fire officials are telling residents near Flatiron Reservoir and Carter Lake to leave their homes and evacuate to Loveland in northern Colorado because of a 30-acre wildfire. (AP Photo/The Greeley Tribune, Jim Rydbom)

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** FILE ** Archbishop Andre-Joseph Leonard of Mechelen-Brussels gestures as he addresses the media at a media conference in Brussels on Monday, Sept. 13, 2010. (AP Photo/Yves Logghe)

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Pro-Taiwan activist Huang Hsi-lin (left) waves a flag as he and another activists set off to a group of disputed East China Sea islands -- called Senkaku in Japanese and Diaoyutai in Chinese -- from the Yehliu fishing port in northeastern Taiwan on Monday, Sept. 13, 2010. The activists set out to promote Taiwan's claim to the disputed islands at the center of a row between China and Japan, which also claim the islands. (AP Photo/Wally Santana)

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Senate Majority Leader Harry Reid of Nevada must try to stop the Yucca Mountain nuclear waste repository project or risk not being re-elected. (Associated Press)

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Senate Majority Leader Harry Reid of Nevada must try to stop the Yucca Mountain nuclear waste repository project or risk not being re-elected. (Associated Press)

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An emergency worker walks through an area of burned houses in San Bruno, Calif., on Saturday, Sept. 11, 2010. On Thursday, a gas-line rupture caused a large explosion that killed at least four people and leveled dozens of houses. (AP Photo/Noah Berger)

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Television political commentator Glenn Beck (left) appears onstage with former Alaska Gov. Sarah Palin in Anchorage, Alaska, on Saturday, Sept. 11, 2010. (AP Photo/Michael Dinneen)

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** FILE ** In this photo taken Sunday, Sept. 5, 2010, and released by the Korean Central News Agency via Korea News Service in Tokyo, North Koreans work in a field damaged by Typhoon Kompasu, which battered the Korean peninsula with strong winds and heavy rains, in Sukchon Country, western North Korea. (AP Photo/Korean Central News Agency via Korea News Service)

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Christiana Figueres, head of the U.N.'s Framework Convention on Climate Change, speaks during a press interview at a hotel in Beijing Friday, Sept. 10, 2010. The U.N.'s climate chief urged countries to be flexible in order to make progress at weeklong climate talks in China next month, the last formal negotiations on climate change ahead of a major year-end meeting in Cancun, Mexico. (AP Photo/Alexander F. Yuan)

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Volunteers put up signs outside the evacuation center in San Bruno, Calif., Saturday, Sept. 11, 2010. Fire crews doused the remnants of an enormous blaze and accounted for the residents of dozens of homes Friday after a gas line ruptured and an explosion ripped through in a neighborhood near San Francisco, killing at least four people. (AP photo/Tony Avelar)

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Aerial view of damage caused by a massive fire in a mostly residential neighborhood in San Bruno, Calif., Friday, Sept. 10, 2010. Fire crews tried to douse the remnants of an enormous blaze and account for the residents of dozens of homes Friday after a gas line ruptured and an explosion ripped through in a neighborhood near San Francisco. (AP Photo/Jeff Chiu)

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A helicopter drops water on a massive fire through a mostly residential neighborhood in San Bruno, Calif., Thursday, Sept. 9, 2010. Firefighters from San Bruno and surrounding cities are battling the blaze that started on a hillside and is now consuming homes the San Francisco suburb. (AP Photo/Paul Sakuma)

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Two cars burned after a massive fire roared through a mostly residential neighborhood in San Bruno, Calif., Thursday, Sept. 9, 2010. Firefighters from San Bruno and surrounding cities are battling the blaze that started on a hillside and is now consuming homes in a residential neighborhood. (AP Photo/Paul Sakuma)

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California Lt. Gov. Abel Maldonado, left, listens as officials describe destruction following a gas explosion during a press conference in San Bruno, Calif., Friday, Sept. 10, 2010. Fire crews sprayed water on smoldering homes Friday morning after a massive explosion apparently triggered by a broken gas line sent flames roaring through a neighborhood near San Francisco, killing at least four people and injuring dozens, officials said.(AP Photo/Eric Risberg)

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A volunteer, left, helps an evacuees who wished not to be identified, at a Red Cross shelter in San Bruno, Calif., Friday, Sept. 10, 2010, after she was injured at her home that burned down during a massive fire in her neighborhood on Thursday. According to officials, the massive explosion was apparently triggered by a broken gas line that sent flames roaring through a neighborhood near San Francisco. (AP Photo/Paul Sakuma)

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Former Alaska Gov. Sarah Palin (shown here in Duluth, Ga., in this June 29, 2010, file photo) will speak at an event in Anchorage, Alaska, and probably also at a rally in Wasilla, Alaska, on Sept. 11.