Environment

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Floodwater surrounds two pickup trucks outside a garage in Memphis, Tenn., on Sunday, May 8, 2011. Residents were told Sunday to flee their homes for higher ground as the mighty Mississippi River edged toward the city, threatening to bring more flooding to parts of an area already soaked. (AP Photo/Jeff Roberson)

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Republican primary voters in New Hampshire say it's natural to be attracted to a new face. Former Minnesota Gov. Tim Pawlenty could be among the beneficiaries of that phenomenon if Mr. Romney falters.

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Associated Press photographs Polls in New Hampshire show former Massachusetts Gov. Mitt Romney is the man to beat in the first-in-the-nation Republican primary, despite the reservations of some grass-roots activists in the Granite State.

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A tugboat heads under the Harahan Bridge in Memphis, Tenn., next to Tom Lee Park which is beginning to be flooded by the Mississippi River on Friday, May 6, 2011. Memphis Police began distributing more than 1,000 evacuation notices to area homeowners on Friday. (AP Photo/Lance Murphey)

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A driver tries Thursday to drive on a submerged portion of Mississippi Highway 465 on his way to Eagle Lake, near Vicksburg, Miss., before rising flood waters stopped him. Residents along Mississippi River tributaries are evacuating ahead of the possible record flooding. (Associated Press)

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The rising waters of Lake Ferguson flood the Greenville Yacht Club on Thursday and are forcing the evacuation of its neighbor the Lighthouse Point Casino, in Greenville, Miss. (Associated Press)

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**FILE** A motorist fills her car at a Pembroke Pinses, Fla. Mobil gas station on May 5, 2011, with the price of regular gas near $4 a gallon. (Associated Press)

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**FILE** A price board is shown at a Shell gas station in Novato, Calif., on May 5, 2011. (Associated Press)

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ASSOCIATED PRESS PHOTOGRAPHS Floodwaters from the White River rise to cover an intersection in Des Arc, Ark., on Thursday. High water threatened to cut off nearby Interstate 40.

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Thousands of people from Illinois to Louisiana have been forced from their homes, and anxiety is rising along with the rivers, though some of the most severe flooding has yet to hit. High water already threatens a house in Paducah, Ky., on the Ohio River.

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ASSOCIATED PRESS Tokyo Electric Power Co. President Masataka Shimizu, (third from right) bows in apology Wednesday to Namie villagers who have been living at an evacuation center in Fukushima prefecture since fleeing their homes, located in a 19-mile zone from the radiation-spewing Fukushima Dai-ichi nuclear plant.

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The Bornquist model at Bayside is priced from $339,990 and has 2,223 square feet. NV Homes is building approximately 1,400 town homes and single-family homes in the Delaware community.

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Scott Carpenter, one of two surviving Mercury Seven astronauts, speaks during a dedication ceremony of the Mercury Project/Messenger Mission stamp that was unveiled on Wednesday, May 4, 2011, at the Kennedy Space Center at Cape Canaveral, Fla. (AP Photo/Florida Today, Michael R. Brown)

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This April 10 image taken by T-Hawk drone aircraft and released by Tokyo Electric Power Co., shows the damaged reactor building of Unit 1 of the tsunami-crippled Fukushima Dai-ichi nuclear power plant in Okuma, Fukushima Prefecture, northeastern Japan. Japan's nuclear safety agency said workers entered the reactor building of Unit 1 at the nuclear complex for the first time Thursday after the March 11 earthquake. (Associated Press/Tokyo Electric Power Co.)

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COURTESY OF JAMES C. ROSAPEPE "Deregulation has failed. We're not going to give up on re-regulation until it is done," says State Sen. James C. Rosapepe, Prince George's Democrat.

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ASSOCIATED PRESS Mark Reuss (left), General Motors' North American president, and Kentucky Gov. Steven L. Beshear visit GM's plant in Bowling Green Ky., where the next-generation Corvette will be manufactured.

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DREW ANGERER/THE WASHINGTON TIMES A pile of splintered wood and debris is all that remains of a home on Ashley Drive in Rockville that was destroyed by a natural gas explosion. The tenants, who recently moved into the house, survived but were in serious condition after being blasted into the yard.