| http://www.w3.org/ns/prov#value | - Global change is broadly defined under the U.S. Global Change Research Act of 1990 (Public Law 101-606,104 Stat. 3096-3104) as ???Changes in the global environment (including alterations in climate, land productivity, oceans or other water resources, atmospheric chemistry, and ecological systems) that may alter the capacity of the Earth to sustain life.??? Fluctuations do not necessarily refer to
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