Air Quality/Global Warming

U.S. EPA — Office of Air and Radiation Homepage

U.S. EPA — The Plain English Guide to the Clean Air Act

U.S. EPA — Office of Transportation and Air Quality

U.S. EPA — Clean Air Technology Center Home Page

U.S. EPA — Ozone Depletion


Biological Diversity

Gap Analysis Program


Environmental Economics

Natural Capitalism by Hawkin, Lovins, Lovins
Book excerpts and downloadable chapters are available on the site. A book that teaches how to tunnel through the costs of environmental efficiency to achieve a better bottom line. As planners, we can prevent climate changes and save our cities money.

The Apollo Alliance for Good Jobs and Clean Energy
The Apollo Alliance is a joint project of the Institute for America's Future and the Center on Wisconsin Strategy

Rocky Mountain Institute

Renewable Energy Policy Project



Energy Efficiency and Renewable Energy Network



U.S. EPA — Compliance and Enforcement Homepage

U.S. EPA — OSPS Brownfields Homepage


Environmental Management

U.S. EPA — Environmental Justice 

U.S. EPA — Environmental Management Systems

U.S. EPA — Environmental Planning for Small Communities (TRILOGY)


Hazardous Wastes




United Nations (Environment Natural Resources, and Energy Division)


Land Use Law

Albany Law School — Land Use Law and Zoning Blog


Non-Governmental Organizations (NGOs)

The Nature Conservancy



National Trust for Historic Preservation Focuses on Sustainability