Richard Tafoya
Jul 10th, 2007, 08:44 PM
Another blow to the "flat earthers" like Regis.
http://environment.guardian.co.uk/climatechange/story/0,,2123448,00.html
It has been one of the central claims of those who challenge the idea that human activities are to blame for global warming. The planet's climate has long fluctuated, say the climate sceptics, and current warming is just part of that natural cycle - the result of variation in the sun's output and not carbon dioxide emissions.
But a new analysis of data on the sun's output in the last 25 years of the 20th century has firmly put the notion to rest. The data shows that even though the sun's activity has been decreasing since 1985, global temperatures have continued to rise at an accelerating rate.
The solar hypothesis was championed publicly in March by the controversial Channel 4 documentary The Great Global Warming Swindle.
The programme has been heavily criticised for distorting scientific data to fit the sceptic argument and Carl Wunsch, a professor of physical oceanography at MIT who featured in the programme, later said that he was "totally misled" by the film makers and that his comments were "completely misrepresented".
The new analysis is designed to counter the main alternative scientific argument put forward by the programme - that solar activity may be to blame for global warming.
"The temperature record is simply not consistent with any of the solar forcings that people are talking about," said lead author Mike Lockwood at the Rutherford Appleton Laboratory in Oxfordshire.
"They changed direction in 1985, the climate did not ... [the temperature] increase should be slowing down but in fact it is speeding up."
http://environment.guardian.co.uk/climatechange/story/0,,2123448,00.html
It has been one of the central claims of those who challenge the idea that human activities are to blame for global warming. The planet's climate has long fluctuated, say the climate sceptics, and current warming is just part of that natural cycle - the result of variation in the sun's output and not carbon dioxide emissions.
But a new analysis of data on the sun's output in the last 25 years of the 20th century has firmly put the notion to rest. The data shows that even though the sun's activity has been decreasing since 1985, global temperatures have continued to rise at an accelerating rate.
The solar hypothesis was championed publicly in March by the controversial Channel 4 documentary The Great Global Warming Swindle.
The programme has been heavily criticised for distorting scientific data to fit the sceptic argument and Carl Wunsch, a professor of physical oceanography at MIT who featured in the programme, later said that he was "totally misled" by the film makers and that his comments were "completely misrepresented".
The new analysis is designed to counter the main alternative scientific argument put forward by the programme - that solar activity may be to blame for global warming.
"The temperature record is simply not consistent with any of the solar forcings that people are talking about," said lead author Mike Lockwood at the Rutherford Appleton Laboratory in Oxfordshire.
"They changed direction in 1985, the climate did not ... [the temperature] increase should be slowing down but in fact it is speeding up."