At least the witch-trials will not begin today.

Watts Up With That?

Guest opinion by Ron Arnold

Willie Soon, Ph.D., is an astrophysicist in the Solar, Stellar and Planetary Sciences Division of the Harvard-Smithsonian Center for Astrophysics in Cambridge, Massachusetts.

Soon’s career has proven to be a textbook example of speaking truth to power and bravely facing the consequences.

Beginning in 1994, Soon produced an important series of astrophysics papers on the Sun’s impact on Earth’s climate, which received positive discussion in the U.N. Intergovernmental Panel on Climate Change’s (IPCC) second and third assessment reports, released in 1996 and 2001, respectively. Throughout the 1990s, IPCC still acknowledged there were uncertainties about humankind’s potential influence on climate, despite pressure from nongovernmental organizations to find a “smoking gun” in the weak data.

In his 2007 book History of the Science and Politics of Climate Change, Bert Bolin, co-creator and first chairman of IPCC, deplored the denial of uncertainty, writing, “It was non-governmental groups…

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