Heartland Institute Non-profit research and education organization, climate change denial front group

• Member of Cooler Heads Coalition ('99→?)

George C. Marshall Institute Nonprofit corporation that conducts technical assessments of scientific issues with an impact on public policy

• Member of Cooler Heads Coalition ('99→?)

Frontiers of Freedom Public-policy advocacy organization founded by former Sen. Malcolm Wallop

• Member of Cooler Heads Coalition ('99→?)

Freedom Action corporate grassroots

• Member of Cooler Heads Coalition ('11→?)

Fraser Institute Canadian conservative-libertarian free-market public policy think tank

• Member of Cooler Heads Coalition ('04→?)

Eagle Forum

• Member of Cooler Heads Coalition ('11→?)

Defenders of Property Rights Founded in 1991 by former staffers of the Mountain States Legal Foundation

• Member of Cooler Heads Coalition ('99→'08)

Council for Citizens Against Government Waste (CCAGW) is the lobbying arm of Citizens Against Government Waste

• Member of Cooler Heads Coalition ('11→?)

Consumer Alert

• Founder of Cooler Heads Coalition ('97→'08)*

Committee for a Constructive Tomorrow A self proclaimed public interest, research and education organization, and climate change denial front group funded by ExxonMobil

• Member of Cooler Heads Coalition ('98→?)

Members