Climate change down to human influence

4.00.00pm UTC (GMT +0000) Fri 2nd Feb 2007

Global climate change is "very likely" to have a human cause, a report from the Intergovernmental Panel on Climate Change says. The report said temperatures were probably going to increase by 1.8-4C (3.2-7.2F) by the end of the century. It also projected that sea levels were most likely to rise by 28-43cm, and global warming was likely to influence the intensity of tropical storms.

Liberal Democrat Environment Spokesperson Chris Huhne "This report is a cautious and consensual statement of the overwhelming scientific evidence that we have to act quickly. Man-made climate change poses an increasing risk to people and businesses across the globe. There will be disastrous consequences if we don't act now. The economic evidence, following the Stern Review, is clear - tackling this challenge is both achievable and affordable. Rather than tinkering around the edges, Gordon Brown must now make a serious effort to use the tax system to change peoples' behaviour. We need greener and fairer taxes, but not higher taxes overall."