In the 20th century, American conservation efforts shifted from resource protection to environmental activism, driven by economic crisis, ecological disaster, and growing public awareness.
A license for five years on a non-exclusive, worldwide-basis for digital educational use only in a single product or service. Does not include promotional or broadcast / VOD usage. Contact us for custom licensing options. licensing@makematic.com
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Extended Ten Year License
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An extended license for ten years on a non-exclusive, worldwide-basis for digital educational use only in a single product or service. Does not include promotional or broadcast / VOD usage. Contact us for custom licensing options. licensing@makematic.com