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From Environmental Technology
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ecological footprint http://dictionary.reference.com/search?q=ecological%20footprint
something which has permanently damaged or had a negative impression the environment; the impact of humans on ecosystems created by their overuse of land, water, and other natural resources
Renewable resources http://dictionary.reference.com/search?r=2&q=renewable%20resource
any natural resource that can replenish itself naturally over time, as wood or solar energy; also called renewable energy, renewable energy resource, renewable natural resource
Environmental sustainability
