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Increased urbanization, resource usage and pollution.
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The National Audubon Society forms to try to save plume birds from ladies’ hatters (PBS).
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Conservation movement grows. Concern for tigers, rhinoceros, etc.
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Recognition that agricultural practices may affect soils and climate.
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Resource use (especially fossil fuel use) and pollution increased. Human population rises sharply.
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Concept of ‘stewardship’ is applied to nature.
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Recognition of need to conserve natural areas.
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Emphasizes the ability of food chains to accumulate toxins into higher tropic levels, including into humans.
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General acceptance of dangers of chemical toxins affecting humans. The pesticide DDT is banned.
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Public awareness grows. WWFN, Greenpeace, Friends of the Earth all formed.
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Declaration of UN conference. Action Plan for the Human Environment. EnvironmentFund established. Formation of UN Environment Programme (UNEP). Earth Summits planned at ten-year intervals.
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Act was passed by Congress to conserve and protect endangered and threatened species and their habitats both domestically and abroad (NOAA).
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Endangered species protected from international trade.