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Geological Survey, United States
provides impartial information on the health of our ecosystems and environment, the natural hazards that threaten us, the natural resources we rely on, the impacts of climate and land-use change, and the core science systems that help us provide timely, relevant, and useable information
Government Printing Office
free electronic access to information products produced by the United States Federal Government
Covers all aspects of human impact to the environment including global warming, green building, pollution, sustainable agriculture, renewable energy, recycling, and more from EBSCOhost