Environment

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The Pu'u O'o crater of the Kilauea volcano on the "Big Island" of Hawaii is seen on Sunday, March 6, 2011, after the crater's floor collapsed on Saturday, causing new eruptions. (AP Photo/Tim Wright)

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In this Feb. 14, 2011 photo, actor Sean Penn attends a news conference about the Cinema For Peace fund raising gala in Berlin. Sean Penn says he thinks Charlie Sheen could do a lot of good in Haiti, both for himself and the nation struggling to recover from a devastating earthquake, Friday, March 4, 2011. (AP Photo/Markus Schreiber)

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A detail from a mosaic fountain, unearthed after the volcanic eruption of Mount Vesuvius that wiped out the Roman city of Pompeii more than 2000 years ago, is part of a new exhibition from Italy at Discovery Times Square, previewed on Wednesday, March 2, 2011. The exhibition opens Friday and runs through Sept 5. (AP Photo/Bebeto Matthews)

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The Taurus XL rocket stands on Space Launch Complex 576-E at Vandenberg Air Force Base in California Thursday March 3, 2011. Data from the Glory mission will allow scientists to better understand how the sun and tiny atmospheric particles called aerosols affect Earth's climate. The liftoff from Vandenberg Air Force Base in California is targeted for 5:09 a.m. EST Friday. (AP Photo/NASA - Randy Beaudoin)

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This undated handout photo provided by the journal Science shows ice penetrating radar over the freeze-on ice along the southern margin of the Gamburtsev Mountains. The intense blue sky reflects the high altitude and thin atmosphere of the polar plateau. When it comes to ice, scientists are giving a whole new meaning to the phrase "bottoms up." Those massive ice sheets in Antarctica don't just grow from the bottom up, according to new research published Thursday. (AP Photo/Robin E. Bell--Lamont Doherty Earth Observatory, New York)

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Damage from Saturday's tornado, which killed one and injured at least a dozen others, is evident Sunday in Rayne, La. About 1,500 people were unable to immediately return to their homes, said Police Chief Carroll Stelly. (Associated Press)

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A tornado slammed Rayne, La., on Saturday, March 5, 2011, killing a young mother who was sheltering her child and injuring 11 other people. More than 100 homes were damaged, many of them destroyed, authorities said, and about 1,500 people were evacuated because of natural gas leaks. (AP Photo/The Lafayette Daily Advertiser, P.C. Piazza)

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In this Sept. 1, 2010, photo, workers drill wells as part of a project to clean up the groundwater at the site of a blowout at a natural gas well in northeast Wyoming's Line Creek Valley. The blowout in 2006 created a plume of pollution, including benzene, that has residents worried about the long-term safety of their drinking water. (AP Photo/Mead Gruver)

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This image provided by NASA shows the encapsulated Glory spacecraft sitting atop the Taurus XL rocket and awaiting launch on the pad at Vandenberg Air Force Base's Space Launch Complex in Calif., Feb. 22, 2011. Vandenberg Air Force Base officials sid the Taurus XL rocket carrying NASA's Glory satellite lifted off about 2:10 a.m. PST Friday, March 4, 2011, from the base. However the fairing surrounding the Glory spacecraft failed to separate properly preventing the spacecraft from reaching orbit. (AP Photo/NASA)

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Alaska Gov. Sean Parnell wants to boost Alaska's declining energy production with tax cuts on oil and gas companies. His proposal, which modifies a tax structure implemented by former Gov. Sarah Palin, passed a House committee 7-2 this week. (Associated Press)

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Van Metre Homes is building 3,100 town homes at Stone Ridge in Aldie. The homes have 2,562 to 2,608 finished square feet, with base prices from $348,990 to $359,990.

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The kitchen has a center-island cooktop, a second island with a breakfast bar, stainless steel appliances and granite counters.

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The Colorado model's main level features a center-island kitchen with a breakfast area and a walk-in pantry. Upstairs are four bedrooms, each with at least one walk-in closet.

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Tracey Harris, second left, is assisted as he walks behind the coffin of her 9-month-old son, Jayden Harris, In Christchurch, New Zealand, Wednesday, March 2, 2011. Jayden who was killed Tuesday Feb. 22, 2011, when a 6.3 magnitude earthquake hit Christchurch causing extensive damage and loss of life. (AP Photo/New Zealand Herald, Mark Mitchell)

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Laborers offload bags of coconut powder in January at Hamriyeh port in Dubai, United Arab Emirates. The goods were scheduled to be loaded onto a container ship for export to Iran. (Associated Press)

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The new Audi Q5 Hybrid car is shown during the press day at the 81st Geneva International Motor Show in Geneva, Switzerland, Tuesday, March 1, 2011. The Motor Show will open its gates to the public from March 3 to 13. (AP Photo/Keystone, Martial Trezzini)

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Musician Peter Yarrow performs for a crowd of environmental activists across from the Frank E. Moss Federal Courthouse Monday, Feb. 28, 2011, in Salt Lake City. Hundreds of demonstrators showed up to march and support Tim DeChristopher on the opening day of his federal trial on charges of bidding up prices at an auction of land leases that he couldn't pay for. (AP Photo/Jim Urquhart)

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Chef Langaney cooks vegetarian food using solar energy at El Romero last month. On its extensive menu: ceviche made from the stems of lily pads that grow wild, yucca and sweet potato "meatballs," pumpkin flower-paste crepes, sauteed prickly pear cactus with aromatic herbs. (Associated Press)

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A Washington Township school bus sits on the side of the road in Fishers, Ind., northeast of Indianapolis, on Monday, Feb. 28, 2011. Severe thunderstorms cut across central and southern Indiana early Monday, dumping heavy rains that flooded roadways and whipping up high winds that damaged homes and toppled trees and power lines. (AP Photo/The Indianapolis Star, Matt Kryger)