Guardian: It was more than four years ago when George Monbiot wrote on these pages: "At last the battlelines have been drawn, and the first major fight over climate change is about to begin. All over the country, a coalition of homeowners and anarchists, Nimbys and internationalists is mustering to fight the greatest future cause of global warming: the growth of aviation." Now the frontline in that battle, the third runway at Heathrow, has been officially cancelled, and so too have the new …