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Citizen Science: Share Your Observations

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By contributing their observations of the natural world, citizen scientists can participate actively in environmental conservation.Photo: Contribute your Baltimore Oriole observations to eBird, a large citizen science database. AcrylicArtist/morgueFile.

Other Biodiversity Topics
Environmental Issues Spotlight10

Invasive Species Vectors

Definition and examples of vectors responsible for accidental and intentional introductions of invasive species.

White Nose Syndrome

Find out what white nose syndrome is, where it is from, and how it is threatening North American bats.

How to Stop Marine Invasive Species

Learn important steps to prevent transferring invasive species to salt water ecosystems.

How to Stop Terrestrial Invasive Species

Learn important steps to prevent transferring invasive species to terrestrial habitats.

How to Stop Freshwater Invasive Species

Learn important steps to prevent transferring invasive species to lakes, rivers, and streams.

Water Quality: The Best Beach States in the U.S.

Find out which states have the cleanest beaches.

Water Quality: The Worst Beach States in the U.S.

Find out which states have the beaches with the worst water quality.

Carbon Dioxide Emissions: The 9 Best States

Find out which states have the lowest carbon dioxide emissions.

Top 14 Carbon-Emitting States

Find out which states are responsible for most of the United States carbon dioxide emissions.

What is the Northern Gateway Pipeline and Why Does It Worry So Many?

A controversial pipeline was approved by the Canadian government to transport crude oil from Alberta to the Pacific Coast. Find out why many groups are against this project

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