Science & Public Policy Institute (SPPI)

Petition to Harvard-Smithsonian in Defense of Willie Soon

May 5, 2015

Approximately 500 scientists and policy analysts signed this letter to members of the Harvard-Smithsonian Board of Regents defending Willie Soon, an astrophysicist falsely accused by Harvard–Smiths

Validity of Climate Change Forecasting for Public Policy Decision Making

November 4, 2009

Policymakers need to know whether prediction is possible and, if so, whether any proposed forecasting method will provide forecasts that are substantially more accurate than those from the re

Dr. Roger Pielke, Jr. Hearing on Climate Change: It's Happening Now

Dr. Roger Pielke, Jr.
July 18, 2013

To the Committee on Environment and Public Works of the United States Senate Hearing on Climate Change (July 18, 2013), Dr.

Ten Years’ “Accelerated Global Warming”? No, Mr. President!

Christopher Monckton of Brenchly
July 22, 2013

In this review of claims that global warming exists, the author writes for SPPI that the extravagant claims in support of global warming are misleading.

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