Independent: A lot has changed since the worlds leading climate scientists last gathered in the name of the UN Intergovernmental Panel on Climate Change (IPCC) in 2007, to put the finishing touches to their fourth landmark assessment of the state of global warming.
Since the release of that report in Geneva, the world has been through a prolonged and continuing economic downturn. This was arguably good for the environment in the short term, because the resulting slump in manufacturing had the effect of curbing...