An index to books, articles in books, and journals and government publications related to the geosciences. Georef contains citations to over 2.6 million publications in a wide variety of subject areas, including geology, geophysics, geochemistry, paleontology, geomorphology and physical geography. Indexes materials on the geology of North America that have been published since 1693; covers materials on other parts of the world that have been published since 1933. Citations only.

Indexes scholarly, government and general-interest titles covering all aspects of human impact to the environment. Topics include global warming, green building, pollution, sustainable agriculture, renewable energy, recycling, and more. The database provides indexing and abstracts for more than 384,000 records, as well as Open Access full text for more than 4,700 records. Date coverage: 1913 to present.

Provides access to scholarly journals, magazines, and other reference sources covering environmental issues and policies. The database includes diverse perspectives from the scientific community, governmental policymakers, and corporate interests.