The U.S. Senate Environment and Public Works Committee produced this report, a follow-up to its 2007 report “Over 400 Prominent Scientists Disputed Man-Made Global Warming Claims in 2007”.
The introduction states,
"Over 650 dissenting scientists from around the globe challenged man-made global
warming claims made by the United Nations Intergovernmental Panel on Climate Change
(IPCC) and former Vice President Al Gore. This new 231-page U.S. Senate Minority
Report report -- updated from 2007’s groundbreaking report of over 400 scientists who
voiced skepticism about the so-called global warming “consensus” -- features the
skeptical voices of over 650 prominent international scientists, including many current
and former UN IPCC scientists, who have now turned against the UN IPCC. This
updated report includes an additional 250 (and growing) scientists and climate
researchers since the initial release in December 2007. The over 650 dissenting scientists
are more than 12 times the number of UN scientists (52) who authored the media-hyped
IPCC 2007 Summary for Policymakers."