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Externality

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The cost or benefit of a good or service that is not included in the purchase price of that good or service.

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Two types of water currents

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Surface and deep.

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A tool that developers use to classify land areas for development and land use

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Zoning.

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Environmental effects of clear-cutting boreal forests

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Increase in atmospheric carbon dioxide concentration, contributing to climate change.

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Environmental impact of high density animal farming

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Water pollution due to runoff.

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Definition of biodiversity

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The variety of life in the world or in a particular habitat or ecosystem.

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What is 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.

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What is an ecological footprint?

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A measure of human demand on the Earth's ecosystems, representing the amount of natural capital used.

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Definition of renewable resources

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Resources that can be replenished naturally over time, such as solar energy, wind energy, and biomass.

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What is the greenhouse effect?

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The warming of the Earth's surface due to the trapping of heat by greenhouse gases in the atmosphere.