Environmental Protection Agency: The Toxics Release Inventory (TRI) is a resource for learning about toxic chemical releases and pollution prevention activities reported by industrial and federal facilities.

EPA Data Catalogs: The EPA provides access to four catalogs of environmental data: Environmental Dataset Gateway (EDG), Geosaptial Applications, Registry of EPA Applications, Models, and Data Warehouses (READ), and System of Registries (SoR).

NOAA Climate Data : The National Oceanic and Atmospheric Administration provides access to current and historical climate data.

NASA Socioeconomic Data and Applications Center: The Socioeconomic Data and Applications Center (SEDAC) is run by NASA and contains data relating to how humans interact with the environment. It contains data on agriculture, climate, conservation, infrastructure, land use, and more.

United States Department of Agriculture Data Commons (USDA):  The Ag Data Commons is a public, government, scientific research data catalog and repository available to help the agricultural research community share and discover research data funded by the United States Department of Agriculture and meet Federal open access requirements.

United States Geological Survey (USGS): Created by an act of Congress in 1879, the USGS provides science for a changing world, which reflects and responds to society’s continuously evolving needs. As the science arm of the Department of the Interior, the USGS brings an array of earth, water, biological, and mapping data and expertise to bear in support of decision-making on environmental, resource, and public safety issues.

United States Green Building Counsil (USGBC): The world leader in green building design. They seek to transform how buildings and communities are designed, built and operated, enabling an environmentally and socially responsible, healthy, and prosperous environment that improves the quality of life. They have developed and credentialed LEED, the world’s most preeminent green building system.

Environmental Data Initiative (EDI) Data Portal: The EDI Data Portal contains ecological and environmental data from publicly funded research projects.

Housing and Urban Development: HUD provides interested researchers with access to the original datasets generated by PD&R-sponsored data collection efforts, including the American Housing Survey, median family incomes and income limits, as well as microdata from research initiatives on topics such as housing discrimination, the HUD-insured multifamily housing stock, and the public housing population.

National Historic Geographic Information System: NHGIS provides easy access to summary tables and time series of population, housing, agriculture, and economic data, along with GIS-compatible boundary files, for years from 1790 through the present and for all levels of U.S. census geography, including states, counties, tracts, and blocks.