Environment

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Malaysia's Minister of Transport Hishamuddin Hussein, center, Azharuddin Abdul Rahman, director general of the Malaysian Department of Civil Aviation, left and Malaysia Airlines Group CEO Ahmad Jauhari Yahya, right, listen to questions from the media during a press conference regarding missing Malaysia Airlines jetliner MH370, Friday, March 14, 2014 in Sepang, Malaysia. The international search for the missing Malaysian jetliner expanded westward Friday toward the Indian Ocean amid signs the aircraft may have flown on for hours after its last contact with air-traffic control nearly a week ago. (AP Photo/Wong Maye-E)

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Secretary of U.S. Housing and Urban Development (HUD) Shaun Donovan, left, listens as Colo. Gov. John Hickenlooper introduces him to members of the media on the state Capitol steps, in Denver, Friday, March 14, 2014. Secretary Donovan announced Friday that Colorado is getting an additional $199 million from the federal government to help communities devastated by September's historic floods. (AP Photo/Brennan Linsley)

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Colo. Gov. John Hickenlooper, left, walks down the state Capitol steps with Secretary of U.S. Housing and Urban Development (HUD) Shaun Donovan, right, and U.S. Senator Michael Bennet, in Denver, Friday, March 14, 2014. Secretary Donovan announced Friday that Colorado is getting an additional $199 million from the federal government to help communities devastated by September's historic floods. (AP Photo/Brennan Linsley)

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Secretary of U.S. Housing and Urban Development (HUD) Shaun Donovan speaks to members of the media, flanked at left by Colo. Gov. John Hickenlooper, far left, and U.S. Senator Mark Udall, and backed by several Colorado mayors, on the state Capitol steps in Denver, Friday, March 14, 2014. Secretary Donovan announced Friday that Colorado is getting an additional $199 million from the federal government to help communities devastated by September's historic floods. (AP Photo/Brennan Linsley)

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Flames leap into the air from a natural gas pipeline fire on Friday, March 14, 2014 north of Fremont. The line erupted about 8:30 a.m. Friday near the intersection of county roads 20 and O, about six miles north of Fremont. No damage to any structures has been reported. Firefighters from four departments were waiting nearby for workers to turn off the gas flow. The flames towered dozens of feet into the sky, and the heat kept firefighters from getting close enough to see what caused the blast. (AP Photo/The Tribune, Chris Zavadil)

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Flames leap into the air from a natural gas pipeline fire on Friday, March 14, 2014 north of Fremont. The line erupted about 8:30 a.m. Friday near the intersection of county roads 20 and O, about six miles north of Fremont. No damage to any structures has been reported. Firefighters from four departments were waiting nearby for workers to turn off the gas flow. The flames towered dozens of feet into the sky, and the heat kept firefighters from getting close enough to see what caused the blast. (AP Photo/The Tribune, Tracy Buffington )

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Flames leap into the air from a natural gas pipeline fire on Friday, March 14, 2014 north of Fremont. The line erupted about 8:30 a.m. Friday near the intersection of county roads 20 and O, about six miles north of Fremont. No damage to any structures has been reported. Firefighters from four departments were waiting nearby for workers to turn off the gas flow. The flames towered dozens of feet into the sky, and the heat kept firefighters from getting close enough to see what caused the blast. (AP Photo/The Tribune, Chris Zavadil)

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A Nickerson firefighter watches the flames from a natural gas pipeline fire on Friday, March 14, 2014 north of Fremont. The line erupted about 8:30 a.m. Friday near the intersection of county roads 20 and O, about six miles north of Fremont. No damage to any structures has been reported. Firefighters from four departments were waiting nearby for workers to turn off the gas flow. The flames towered dozens of feet into the sky, and the heat kept firefighters from getting close enough to see what caused the blast. (AP Photo/The Tribune, Chris Zavadil)