Sun's activity rules out link to global warming

Sun’s activity rules out link to global warming

From New Scientist:

Direct satellite measurements of solar activity show it has been declining since the mid-1980s and cannot account for recent rises in global temperatures, according to new research. The findings debunk an explanation for climate change that is often cited by people who are not convinced that greenhouse gas emissions from human activities are causing the Earth’s climate to warm. “If you change the output of the Sun you will undoubtedly change the climate it’s just a matter of how much,” says Mike Lockwood, of the Rutherford Appleton Laboratory, part of the Science and Technology Facilities Council in the UK. Sceptics commonly point to climate research’s reliance on computer models as a reason for doubting the link between global warming and human greenhouse gas emissions.

Solar Irradiance vs. Average Temperature

Solar irradiance down since 1985. Earth temperature climbing steadily. Now will all the climate skeptics please shut the hell up?

Comments (2 comments)

Hubert / July 17th, 2007, 5:01 am / #1

Hi Sean,

PLease correct me if i’m wrong, as I might not understand the graphs correctly, without a little explanation… But as I look at these graphs I do see a connection: when solar activity rises, temp drops, and vice versa….

Kind regards,


BlackSun / July 17th, 2007, 10:35 pm / #2

Hi Hubert,

Yes, the climate-change skeptics were saying that the temperature rise over the last 20 years was due to increased solar radiation. As you can see from the graphs, since solar irradiance was down, the warming must have been caused by something else. The likely candidate is atmospheric CO2.

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