NATURAL SCIENCE SITES

AIRNow: Air Quality Conditions - EPA maps
AirData: Access to Air Pollution Data
EPA's Surf Your Watershed
Conservation GIS Atlas Smithsonian National Zoo
NatureServe: Get Data - biodiversity data
GIS and Data Sites (Natural Resources and Conservation Service)
Lifemapper - Biodiversity research, predicting potential species' habitats
Wetlands Mapper (US Fish & Wildlife Service, National Wetlands Inventory)
Global Forest Watch (World Resources Institute) forest cover & land use
Discover NOAA's Coral Reef Data
OBIS - Ocean Biogeographic Information System - marine species data