G.I.S. ATMO/LITHOSPHERE
Atmosphere | Earthdata
https://earthdata.nasa.gov/discipline/atmosphere
Land | Earthdata
https://earthdata.nasa.gov/discipline/land
Earthdata Search
https://search.earthdata.nasa.gov/search
World Petroleum Assessment - World Geologic Maps: USGS, Energy Resources Program
https://energy.usgs.gov/oilgas/assessmentsdata/worldpetroleumassessment/worldgeologicmaps.aspx
Geologic Downloads
https://geomaps.wr.usgs.gov/sfgeo/geologic/downloads.html
Geologic maps of US states
https://mrdata.usgs.gov/geology/state/
OneGeology Portal
http://portal.onegeology.org/OnegeologyGlobal/
Rocks From Above: Google Earth Files
http://rocksfromabove.blogspot.de/p/google-earth-files.html
GIS planet: Mineral Resources. World
http://blog.geoblogspot.com/2008/04/mineral-resources-world.html
Mineral Resources Data System (MRDS)
National Weather Service GIS Data Links
http://www.nws.noaa.gov/gis/kmlpage.htm
NSIDC Data on Google Earth