How helpful is recycling?

Image by Bart

We are given easy household tips by campaigners and the government that will help "save the climate". You know the kind of thing - recycle your plastic bags, turn your telly off standby, bring your own cup to work. There is usually a little clutch of them attached to the latest grim news about climate change: it's not all bad news, they plead, you can take these simple steps today and they really do "make a difference".

But do they? asks George Marshall.