BASE: Bielefeld Academic Search Engine one of the best and most comprehensive tools for locating open-access books, journals, dissertations, and other scholarly sources available worldwide.
Websites
Center for Biological Diversity
Biscon Biodiversity Information Serving Our Nation (BISON) is a product of the U.S. Geological Survey's Core Science Analytics and Synthesis Program. BISON is an information system that allows users to access, explore, and download U.S. species occurrence data from participating data providers.
Envirofacts (EPA) Federated search engine for over 20 of the agency's environmental databases that contain information about facilities required to report activity to a state or federal system.
Environmental Protection Agency
Environomental Working Group Environmental health research and advocacy organization; conduct original research that inspires people, businesses and governments to take action to protect human health and the environment.
Renewable energy sources and climate change mitigation (Special Report of the Intergovernmental Panel on Climate Change)
Global Invasive Species Database
ICUN Red List of Threatened Species
MyEnvironment (Environmental Information for My Area from the US EPA)
National Invasive Species Information Center
National Pesticide Information Center
National Resources Defense Council
NatureServe Is a non-profit conservation organization whose mission is to provide the scientific basis for effective conservation action.
Purdue University Global- 45 Sustainability Resources You Need to Know The resource shares 45 noteworthy sources on sustainability and is organized by the following categories: Green Living, Climate Change & Environmental Protection News, Energy and Technology, Sustainability in Business and Government, Sustainability Careers, Sustainability and the Arts, and Ecotourism. I believe this would be a valuable resource to share with your community as it provides a variety of informative, helpful green resources.
Right-to-Know Network The Right-to-Know Network provides free access to numerous databases and resources on the environment. With the information available on RTK NET, you can identify specific factories and their environmental effects; find permits issued under environmental statutes; and identify civil cases filed.
U.S. Fish and Wildlife Endangered Species Program
What You Need to Know About Energy
World Meterological Organization
Digital Libraries
MetaLib, a service of the Catalog of U.S. Government Publications (53 government databases, subject gateways,
National Science Digital Library
OAIster More than 19 million digital resources from over 1,000 organizations developed by the University of Michigan.
Science Portal (U.S. Government)
WorldWideScience.org is a global science gateway comprised of national and international scientific databases and portals.