British Airways announced that it plans to half its net CO2 emissions from 16 million tons in 2005 to 8 million by 2050.

“We will make progress through investment in cleaner aircraft, use of alternative fuels, more efficient flight routings, and the spread of emissions trading from Europe to the whole world,” said Willie Walsh, the airline’s chief executive.

Airlines are increasingly taking a stance to reduce their or their passenger’s carbon footprint.  Continental, Japan Airlines, SAS, British Airways, Air Canada, Qantas, JetStar, Virgin Atlantic, and Virgin America have all introduced carbon offset programs.