BBC: Nearly all of us talk a good game about global warming and climate change – who doesn’t want to save the world? And most people think reducing our carbon footprint is a Good Thing. Politicians tell us it is one of their top priorities and, with the focus on next week’s gathering of world leaders in Copenhagen, expect climate change to accelerate as waves of warm words are emitted about our duty to the environment. But as the chill winds of recession bite, are we the …