Image Sources

US Geological Survey websites…

Unless stated otherwise, photos and videos may be regarded as public domain, but credit must be given:
Credit: U.S. Geological Survey
Department of the Interior/USGS
U.S. Geological Survey/photo by Jane Doe (if the photographer/artist is known)

NASA websites:

NASA Goddard Scientific Visualization Studio (videos)

NASA - Climate Change Resource Reel (videos)

National Snow and Ice Data Center

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