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More About Environmental Threats
Photo: Spruce forest damaged by acid rain, Poland

Acid Rain

Effects felt through the food chain.

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Photo: Destroyed rain forest in Rondonia State, Brazil

Deforestation

What's happening to our trees?

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Photo: Clouds over a Wyoming prairie

Ozone Depletion

Losing Earth's protective layer.

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Photo: Sunlight filters through smoke

Pollution

What's killing our Earth?

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Photo: Turbine protesters spray paint graffiti on the new foundation of a turbine

Toxic Waste

Man's poisonous byproducts.

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Did You Know?

The U.S. is responsible for more green house gas pollution than South America, Africa, the Middle East, Japan and Asia – all put together.

More About Environmental Threats

News: Latest Environment Stories

PHOTOS: Top Ten New Species of 2007 Named
Greenland Ice Shows Rapid Climate Flips, Study Says
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Interactive: The Greenhouse Effect

It's one thing to know that excessive carbon emissions are bad. It's another thing to understand why. Get a hands-on tutorial of the inner workings of the greenhouse effect.

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Video: State of the Earth—Final Report

See our effect on air, land, water, and wildlife.

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Environment Topics

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Discover the extraordinary impact that an average human life has on the world.

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