By Geoffrey Lean, Environment Editor
Sunday, 14 September 2008
Humanity must urgently embark on a massive programme to power civilisation from wood to stave off catastrophic climate change, one of the world's top scientists has told The Independent on Sunday.
Twenty years ago, Professor James Hansen was the first leading scientist to announce that global warming was taking place. Now he has issued a warning that a back-to-the-future return to one of the oldest fuels is imperative because the world has exceeded the danger level for carbon dioxide in the atmosphere.
Growing trees, which absorb the gas from the air as they grow, burning them instead of fossil fuels to generate electricity, and capturing and storing the carbon produced in the process is needed to get the greenhouse effect down to safe levels, he says.
Professor Hansen's assertion that there is too much carbon dioxide in the atmosphere will alarm governments and environmentalists, who are concentrating on the already daunting task of limiting its build-up, while allowing it to rise well above present levels. However, his views will command respect because, as director of Nasa's Goddard Institute for Space Studies for the past 27 years, he has been one of the few climate scientists ready to risk his reputation by openly stating what many suspect to be true.
In 1988 Professor Hansen put global warming on the political agenda by telling the US Congress that he was "99 per cent certain" that human activities were warming up the planet. It took the Intergovernmental Panel on Climate Change until last year to catch up, by which time nearly two vital decades had been lost.
That's just part of this article: http://www.independent.co.uk/enviro...s-instead-urges-leading-scientist-929889.html
Sunday, 14 September 2008
Humanity must urgently embark on a massive programme to power civilisation from wood to stave off catastrophic climate change, one of the world's top scientists has told The Independent on Sunday.
Twenty years ago, Professor James Hansen was the first leading scientist to announce that global warming was taking place. Now he has issued a warning that a back-to-the-future return to one of the oldest fuels is imperative because the world has exceeded the danger level for carbon dioxide in the atmosphere.
Growing trees, which absorb the gas from the air as they grow, burning them instead of fossil fuels to generate electricity, and capturing and storing the carbon produced in the process is needed to get the greenhouse effect down to safe levels, he says.
Professor Hansen's assertion that there is too much carbon dioxide in the atmosphere will alarm governments and environmentalists, who are concentrating on the already daunting task of limiting its build-up, while allowing it to rise well above present levels. However, his views will command respect because, as director of Nasa's Goddard Institute for Space Studies for the past 27 years, he has been one of the few climate scientists ready to risk his reputation by openly stating what many suspect to be true.
In 1988 Professor Hansen put global warming on the political agenda by telling the US Congress that he was "99 per cent certain" that human activities were warming up the planet. It took the Intergovernmental Panel on Climate Change until last year to catch up, by which time nearly two vital decades had been lost.
That's just part of this article: http://www.independent.co.uk/enviro...s-instead-urges-leading-scientist-929889.html
