| Organization | Description |
|---|---|
| Cato Institute Natural Resources and Environmental Studies | Strives to promote policies that would help protect the environment without sacrificing economic liberty |
| ClimateSearch.com | A web portal for global climate information |
| Competitive Enterprise Institute | Maintains the Center for Private Conservation and Center for Environmental Education Research |
| Foundation for Research on Economics and the Environment | Promotes a free market approach to environmental policy |
| Pacific Research Institute | Runs the Center for Environmental and Regulatory Reform |
| Political Economy Research Center | Pioneers of free-market environmentalism |
| Reason Public Policy Institute Environmental Program | Covers the gamut of environmental policy issues |
| The Heartland Institute | Publishes the monthly Environment and Climate News |
| The Thoreau Institute | Oregon research center inspired by Henry David Thoreau's love of nature and dislike for big government |
