Includes data, resources, and multimedia related to climate change, along with the current National Climate Assessment.
- United States Daily Weather Maps Project
Historical daily weather maps from 1871 thru 2002 and a link to more recent daily weather maps.
- El Niño Page (National Oceanic and Atmospheric Administration)
- National Climatic Data Center (National Oceanic and Atmospheric Administration)
- Bureau of Land Management
- United States Geological Survey
- Focuses on Ecosystems, Geology, and Climate and Land Use