article
Worse than we thought
The world's scientists yesterday gave their starkest warning yet that a failure to cut greenhouse gas emissions will bring devastating climate change within a few decades.
Average temperatures could increase by as much as 6.4C by the end of the century if emissions continue to rise, with a rise of 4C most likely, according to the final report of an expert panel set up by the UN to study the problem. The forecast is higher than previous estimates, because scientists have discovered that Earth's land and oceans are becoming less able to absorb carbon dioxide.
An average global temperature rise of 4C would wipe out hundreds of species, bring extreme food and water shortages in vulnerable countries and cause catastrophic floods that would displace hundreds of millions of people. Warming would be much more severe towards the poles, which could accelerate melting of the Greenland and west Antarctic ice sheets.
The report, from the Intergovernmental Panel on Climate Change (IPCC), is written by hundreds of scientists across the world and has been approved by every government. It leaves little room for doubt that human activity is to blame. Achim Steiner, executive director of the UN Environment Programme, said: "February 2 2007 may be remembered as the day the question mark was removed from whether people are to blame for climate change."
rest of article here:
http://environment.guardian.co.uk/climatechange/story/0,,2005116,00.html
The world's scientists yesterday gave their starkest warning yet that a failure to cut greenhouse gas emissions will bring devastating climate change within a few decades.
Average temperatures could increase by as much as 6.4C by the end of the century if emissions continue to rise, with a rise of 4C most likely, according to the final report of an expert panel set up by the UN to study the problem. The forecast is higher than previous estimates, because scientists have discovered that Earth's land and oceans are becoming less able to absorb carbon dioxide.
An average global temperature rise of 4C would wipe out hundreds of species, bring extreme food and water shortages in vulnerable countries and cause catastrophic floods that would displace hundreds of millions of people. Warming would be much more severe towards the poles, which could accelerate melting of the Greenland and west Antarctic ice sheets.
The report, from the Intergovernmental Panel on Climate Change (IPCC), is written by hundreds of scientists across the world and has been approved by every government. It leaves little room for doubt that human activity is to blame. Achim Steiner, executive director of the UN Environment Programme, said: "February 2 2007 may be remembered as the day the question mark was removed from whether people are to blame for climate change."
rest of article here:
http://environment.guardian.co.uk/climatechange/story/0,,2005116,00.html