Appendix D. Summary of Key Climate Related Votes in Congress

The document lists key climate-related votes in the U.S. Congress between 2003 and 2011 used to determine if legislators support or reject climate science. In the House, votes on the Energy Tax Prevention Act of 2011, the American Clean Energy and Security Act, and various amendments regarding EPA authority and intelligence estimates were used. In the Senate, criteria included votes on the Climate Security Act, the Climate Stewardship Act, and resolutions concerning the EPA's Endangerment Finding and global warming pollution limits.

• The Union of Concerned Scientists identified House members as "anti-climate science" if they voted for the Energy Tax Prevention Act of 2011 (HR 910), which aimed to stop the EPA from regulating greenhouse gases to address climate change, or if they voted against the Waxman "accept the science" amendment (H.AMDT.245) that acknowledged climate change is caused largely by human activities.
• Pro-climate science positions in the House were demonstrated by voting for the American Clean Energy and Security (ACES) Act (H.R. 2454), which proposed an economy-wide cap-and-trade program to reduce global warming pollution by 17% from 2005 levels by 2020 and 83% by 2050, and required 20% of electricity consumption to come from clean, renewable sources by 2020.
• In the Senate, a "pro-climate science" designation was given to those who voted for cloture on the Climate Security Act (S. 2191), which sought to reduce pollution by 17-19% below 2005 levels by 2020 and 57-63% by 2050, or those who voted for the Climate Stewardship Act (S. 139), which aimed to reduce U.S. greenhouse gas emissions to 2000 levels by 2010.
• Senate members were categorized as "anti-climate science" if they supported the McConnell Amendment (S. Amdt. 183) to block EPA action on greenhouse gases, S.J. Res. 26 (the "Dirty Air Act") to overturn the EPA's Endangerment Finding, or a motion to table the "Sense of the Senate" resolution endorsing global warming pollution limits.

APA

Union of Concerned Scientists (n.d.). Appendix D. Summary of Key Climate Related Votes in Congress. https://www.ucs.org/sites/default/files/2019-09/corporate-climate-appendix-d.pdf

Chicago

Union of Concerned Scientists. Appendix D. Summary of Key Climate Related Votes in Congress. n.d. https://www.ucs.org/sites/default/files/2019-09/corporate-climate-appendix-d.pdf.

Wikipedia

{{cite report |author=Union of Concerned Scientists |title=Appendix D. Summary of Key Climate Related Votes in Congress |url=https://www.ucs.org/sites/default/files/2019-09/corporate-climate-appendix-d.pdf |access-date=23 October 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{unionofconcernedscientistsndappendix, author = {{Union of Concerned Scientists}}, title = {{Appendix D. Summary of Key Climate Related Votes in Congress}}, institution = {Union of Concerned Scientists}, url = {https://www.ucs.org/sites/default/files/2019-09/corporate-climate-appendix-d.pdf}, urldate = {2026-10-23}, note = {Indexed by Climate Insights Directory} }