Thursday, September 14, 2006

Study: Sun Not To Blame For Global Warming

Changes In Solar Brightness Too Weak To Explain Global Warming

This one has received a fair amount of coverage in the media. (A Google News search revealed 31+ articles on the study.) Just one study that supports anthropogenic (human-caused) global warming and exonerates the sun. This study is not the last word. It's just the latest. Given the nature of the debate over global warming, one doubts that a 'last word' ever will come.

There are a good deal more articles on the subject that disagree with this new study.

Phenomenological solar contribution to the 1900–2000 global surface warming:
"[T]he solar impact on climate change ... is significantly stronger than what some theoretical models have predicted."


Sun's Activity Increased in Past Century, Study Confirms

Sun more active than for a millennium

The Sun is More Active Now than Over the Last 8000 Years Scientists at the Max Planck Institute for Solar System Research go back eight times the above link's time frame and still find we're at a solar peak relative to their time scale.

Sun's warming influence 'under-estimated' from the Armagh Observatory.
"We can see global warming taking place over the past two centuries that suggests that changes in the Sun are at least partially responsible."


Blocking sunshine with aerosol may help avoid global warming (If the sun isn't causing it, then why will blocking sunlight help slow it?)

Brighter sun adds to fears of climate change
"The enhanced warming we have seen since the 1990s along with phenomena such as the widespread melting of glaciers could well be due to this increased intensity of sunlight compounding the effect of greenhouse gases."


Scientists blame sun for global warming
Careful studies over the last 20 years show that its overall brightness and energy output increases slightly as sunspot activity rises to the peak of its 11-year cycle.

...

That, say scientists in Philadelphia, could be a more significant cause of global warming than the emissions of greenhouse gases that are most often blamed.


Sun's direct role in global warming may be underestimated, Duke physicists report

Sun's Output Increasing in Possible Trend Fueling Global Warming

Mars Melt Hints at Solar, Not Human, Cause for Warming, Scientist Says


(Size is proportionate, but not distance)

Ya know, maybe that great big bright ball 'o gas in the sky is causing some of this. Is this at all possible?

Not to biased scientists funded by left-wing groups intent on blaming humans (specifically, George W. Bush) for everything, while trying their darndest to alarm citizens and persuade them that electing them to power is the only way that we can save the earth from destruction.

**Update August 2, 2007**
Math used in new climate change assessment

**Update August 14, 2007**
Global warming and cooling linked to the sunspot cycle

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