Examples of sources of environmental information produced by government agencies include:
GovInfo (Provides access to major federal, legal, legislative and regulatory information resources)
Census Bureau Data (Get demographic data on environmental sites)
Bureau of Land Management: This Interior Dept. agency owns and manages significant territory in the western U.S.)
EPA National Service Center for Environmental Publications (Research report repository from agency's start in 1970-present)
Local Climatological Data (National Weather Service resource with historic climate data for various U.S. locations)
National Oceanic & Atmospheric Administration (NOAA) Library: Features many historic publications on climate.
National Response Team Provides technical assistance, resources, and coordination when various environmental emergencies occur.