Debating global warming
Plenty of theories still doing the rounds, some undisputed and some that are dubious.
Published On 2 Dec 2011
As world leaders discuss plans for a more eco-friendly global environment, there are still plenty of theories about global warming.
Some theories are undisputed while many others do not stand up to scrutiny.
Al Jazeera’s meteorologist Steff Gaulter sifts through some of them.