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File:Rio tinto river CarolStoker NASA Ames Research Centre.jpg

Description
English: Acid mine drainage causes severe environmental problems in the Rio Tinto, Spain.
Date before 15 April 2005
Source Downloaded from the internet article on the Rio Tinto, Spain. It should be credited to Carol Stoker NASA. My understanding is as a NASA photo it is public domain. Please correct me if I am wrong. Taken from here
Author Carol Stoker, NASA

Licensing

Public domain This file is in the public domain because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
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