'Global warming cannot be stopped'

The world must be more realistic about the chances of preventing climate change and prepare for the inevitability (sure to happen) of global warming, the head of one of Britain's foremost scientific societies urged.

Politicians and environmentalists have failed to understand how difficult it will be to curb (stop) global warming and are overlooking the importance of adapting to the hotter world it will bring, according to Frances Cairncross, the President of the British Association for the Advancement of Science.

While measures to cut the greenhouse gas emissions that cause global warming are essential, they have been emphasised over and above the equally vital need to develop ways of coping with climate change, Ms Cairncross said.

The 'ineffectual' (not serving intended purpose) Kyoto Treaty will not stop temperatures rising, as the US and large developing nations such as China and India are not involved, and even if a global agreement to limit carbon dioxide emissions is reached, a significant degree of warming is still likely.

As a result, scientists and governments need to think now about measures, such as better flood defences and wildlife corridors, that will help threatened species to migrate as habitats are lost.

"Adaptation (make suitable) policies have had far less attention than mitigation (make effects less severe), and that is a mistake," Ms Cairncross said in her presidential address to the association's Festival of Science in Norwich. "We need to think about policies that prepare for a hotter, drier world, especially in poorer countries.

"That may involve, for instance, developing new crops, constructing flood defences, setting different building regulations, or banning building close to sea level." Ms Cairncross's message will be controversial as many environmental groups have discouraged talk of adapting to global warming as an inevitability for fear that it will hand politicians an excuse for failing to cut greenhouse gas emissions.

Ms Cairncross, an economist who is also Rector of Exeter College, Oxford, believes, however, that there is no reason why adaptation and mitigation cannot proceed hand-in-hand."There are some things that we can't adapt: we can't relocate the Amazon rainforest or replace bleached coral reefs, but we have to think about adaptation with mitigation," she said.

The Times of London.