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Solar vs. Anthropogenic: Obtaining a Better Understanding of Global Warming

July 21, 2013

On March 21, Dr. Nir Shaviv discussed solar influences on the Earth's climate at a forum hosted by the George C. Marshall Institute.Dr.

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On March 21, Dr. Nir Shaviv discussed solar influences on the Earth's climate at a forum hosted by the George C. Marshall Institute.

Dr. Shaviv, a professor of physics at the Hebrew University of Jerusalem, discussed the evidence demonstrating that the sun has a large effect on climate and the physical mechanism for this link.

He showed that by considering the solar forcing, a much more consistent picture emerges for the observed 20th century climate change, with part of it being solar and part being anthropogenic.

In this picture, however, Earth's climate sensitivity is modest and therefore the 21stcentury global warming is expected to be modest as well (about 1°C).

 

 


 

 

Author
Dr. Harrison Schmitt was selected as a scientist-astronaut by NASA in June 1965 and piloted Apollo lunar missions. He formerly served on the Board of Directors of The Heartland Institute and is currently a Policy Advisor.
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