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Published: Friday 23 August, 2013

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aviation industry has cut its greenhouse gas emissions by 13% since 2000, even as the amount of flying has reached record levels, government data show. emissions of gases that warm the Earth remained level between 2000 and 2006. Greenhouse gases from cars and trucks rose 6% in that period, according to an EPA report issued in April.

Aviation has faced pressure to improve efficiency as fuel prices began soaring in 2003. More recently, elected officials and environmentalists have called for stricter controls on aircraft emissions, particularly carbon dioxide, the most prominent greenhouse gas.

Airlines cut fuel consumption from a record 20.4 billion gallons in 2000 to 19.6 billion in 2006, Department of Transportation figures show. In that period, theirplanes flew 18% more miles on domestic and international routes. That marks the first extended period in which airlines have cut fuel use while flying more miles, DOT data show.

The airlines have historically done a much better job than the auto companies at increasing efficiency, said Deron Lovaas, a transit expert at the Natural Resources Defense Council. They feel fuel prices much more than your average consumer feels changes in fuel costs at the pump.

Airlines have taken many steps to curb fuel use, such as adding navigation equipment so planes can fly more direct routes, modifying wings to improve aerodynamics and shaving weight from jets by installing lighter seats. Older jets are being replaced with newer, more bag balenciaga fuele bag balenciaga fficient models.

Industry officials warn that aviations improvement may be hard to continue. Theres so little left you can do other than renewing the fleet or flying less, said John Heimlich, chief economist of the Air Transport Association.

Earthjustice and other groups petitioned the EPA in December to regulate planes greenhouse gases, saying, Voluntary measures alone will not be sufficient. bag balenciaga