New Scientist: Humanity's role in driving climate change is more certain than ever before, but the most extreme scenarios of future warming are looking less likely than a few years ago. This is the upshot of the latest scientific assessment from the UN's Intergovernmental Panel on Climate Change (IPCC), published today.
Its authors say they have greater confidence than ever that most of the warming of the past 60 years is down to human activity. They are now 95 per cent certain of that - up from 90 per cent...