Environment

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Greek bondholders stand at the entrance to Greece's central bank during a protest in Athens on Wednesday, Oct. 31, 2012. (AP Photo/Kostas Tsironis)

Anastasia Mouzakiti (center), a paraplegic from the northern city of Thessaloniki, Greece, came with her husband to Athens to protest outside the Greek parliament on Thursday, Sept. 27, 2012. (AP Photo/Petros Giannakouris)

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Associated Press South Carolina Gov. Nikki Haley (left) and Mark Keel, chief of the state’s Law Enforcement Division, on Monday discuss a cyberattack that saw about 3.6 million tax returns hacked. The vulnerable returns included millions of Social Security numbers.

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New Jersey Gov. Chris Christie greets President Obama in Atlantic City on Wednesday. They then took a helicopter tour of coastal towns. “It’s really important to have the president … acknowledge all the suffering that’s going on here in New Jersey, and I appreciate it very much,” Mr. Christie said. (Associated Press)

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President Barack Obama is greeted by New Jersey Gov. Chris Christie upon his arrival at Atlantic City International Airport, Wednesday, Oct. 31, 2012, in Atlantic City, N.J.. Obama traveled to the region to take an aerial tour of the Atlantic Coast in New Jersey in areas damaged by superstorm Sandy. (AP Photo/Pablo Martinez Monsivais)

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Marine One, carrying President Barack Obama and New Jersey Gov. Chris Christie, takes an aerial tour of the Atlantic Coast in New Jersey in areas damaged by superstorm Sandy, Wednesday, Oct. 31, 2012. (AP Photo/Doug Mills, The New York Times, Pool)

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The view of storm damage over the Atlantic Coast in Seaside Heights, N.J., Wednesday, Oct. 31, 2012, from a helicopter traveling behind the helicopter carrying President Obama and New Jersey Gov. Chris Christie, as they viewed storm damage from superstorm Sandy. (AP Photo/Doug Mills, Pool)

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People line up to fill gas containers at the New Jersey Turnpike's Thomas A. Edison service area Wednesday, Oct. 31, 2012, near Woodbridge, N.J. After Monday's storm surge from Sandy, many gas stations in the region are without power and those that are open have very long lines. (AP Photo/Mel Evans)

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People help push John Oh's van to the pumps at the New Jersey Turnpike's Thomas A. Edison service area Wednesday, Oct. 31, 2012, near Woodbridge, N.J., after Oh, of Blue Bell, Pa., ran out of gas waiting in a long line near exit 11. After Monday's storm surge from Sandy, many gas stations in the region are without power and those that are open have very long lines. (AP Photo/Mel Evans)

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A customer browses food piled into shopping carts on Brighton Beach Avenue, Wednesday, Oct. 31, 2012, in the Brooklyn borough of New York. People in the coastal corridor battered by superstorm Sandy took the first cautious steps Wednesday to reclaim routines upended by the disaster, even as rescuers combed neighborhoods strewn with debris and scarred by floods and fire. (AP Photo/ John Minchillo)

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The view of storm damage over the Atlantic Coast in Seaside Heights, N.J., Wednesday, Oct. 31, 2012, from a helicopter traveling behind the helicopter carrying President Obama and New Jersey Gov. Chris Christie, as they viewed storm damage from superstorm Sandy. (AP Photo/Doug Mills, Pool)

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This aerial view of storm damage over the Atlantic Coast in Seaside Heights, N.J., Wednesday, Oct. 31, 2012, taken from a helicopter traveling behind the helicopter carrying President Obama and New Jersey Gov. Chris Christie, as they viewed storm damage from superstorm Sandy. (AP Photo/Doug Mills, Pool)

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This Oct. 30, 2012 aerial photo provided by the U.S. Air Force shows damage to the New Jersey shoreline during a search and rescue mission by 1-150 Assault Helicopter Battalion, New Jersey Army National Guard. By late Tuesday, the winds and flooding inflicted by the fast-weakening superstorm Sandy had subsided, leaving at least 55 people dead along the Atlantic Coast and splintering beachfront homes and boardwalks from the mid-Atlantic states to southern New England. (AP Photo/U.S. Air Force, Master Sgt. Mark C. Olsen)

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Workers try to clear boats and debris from the New Jersey Transit's Morgan draw bridge Wednesday, Oct. 31, 2012, in South Amboy, N.J., after Monday's storm surge from Sandy pushed boats and cargo containers onto the train tracks. New Jersey Transit's North Jersey Coast Line, which provides train service from the New Jersey shore towns to New York City, may experience prolonged disruption because of the extensive damage. (AP Photo/Mel Evans)

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A cleanup crew works to figure out how to remove power lines and trees off a summer cottage on Lake Webster, Wednesday, Oct. 31, 2012 in Franklin, N.H. By midday Wednesday, utilities brought the number of New Hampshire homes and businesses without power down to 70,000 from a peak of 210,000. (AP Photo/Jim Cole)

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This Oct. 30, 2012, photo provided by New York's Metropolitan Transportation Authority (MTA) shows damage to the South Ferry station of the No. 1 subway line, in lower Manhattan, after Superstorm Sandy passed through New York. Floodwaters that poured into New York's deepest subway tunnels may pose the biggest obstacle to the city's recovery from the worst natural disaster in the transit system's 108-year history but on Wednesday Gov. Andrew Cuomo announced limited subway service will resume on Thursday. (AP Photo/Metropolitan Transportation Authority, Patrick Cashin)

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Marine One, the presidential helicopter, with President Obama and New Jersey Gov. Chris Christie on board, flies over the New Jersey shoreline in areas damaged by superstorm Sandy, on Wednesday, Oct. 31, 2012. (AP Photo/Doug Mills, Pool)