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Montreal Protocol

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An international treaty designed to protect the ozone layer by phasing out substances responsible for ozone depletion, such as chlorofluorocarbons (CFCs).

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Endangered Species Act (ESA) 1973

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A U.S. law that aims to protect and recover imperiled species and the ecosystems upon which they depend.

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Clean Water Act 1972

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A U.S. federal law that regulates the discharge of pollutants into the nation's surface waters, including lakes, rivers, and wetlands.

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Occupational Safety and Health Act (OSHA)

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A law that ensures worker and workplace safety by setting and enforcing standards.

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CITES (Convention on International Trade in Endangered Species)

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An international agreement that makes it illegal to carry endangered species or their parts across international borders.

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Kyoto Protocol

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An international treaty that commits state parties to reduce greenhouse gas emissions, based on the premise that global warming exists and human-made CO2 emissions have caused it.

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Stockholm Agreement

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A global treaty aimed at reducing and eliminating persistent organic pollutants (POPs) to protect human health and the environment.

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National Wilderness Preservation System

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A system established to protect designated wilderness areas in the U.S. where the earth and its community of life are untrammeled by man.

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Pollution

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The introduction of harmful substances or products into the environment, which can cause adverse effects on living organisms and the ecosystem.

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Sustainable Development

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Development that meets the needs of the present without compromising the ability of future generations to meet their own needs.