David Cameron, Green?

Britain Curbing Airport Growth to Aid Climate

Prime Minister David Cameron, a Conservative, abruptly canceled longstanding plans to build a third runway at Heathrow Airport in May, just days after his election; he said he would also refuse to approve new runways at Gatwick and Stansted, London's second-string airports. The government decided that enabling more flying was incompatible with Britain's oft-stated goal of curbing emissions.

Remarkable, considering American conservatism.