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North America is a continent in the Earth's northern hemisphere and almost fully in the western hemisphere, bordered on the north by the Arctic Ocean, on the east by the North Atlantic Ocean, on the southeast by the Caribbean Sea, and on the south and west by the North Pacific Ocean; South America lies to the southeast. It covers an area of about 24,480,000 km2 (9,450,000 sq mi), or about 4.8% of the planet's surface. As of July 2002, its population was estimated at more than 514,000,000. It is the third largest continent in area, after Asia and Africa, and is fourth in population after Asia, Africa, and Europe.
Science and Environment :: North America
Issues :: Society and Culture
North America :: Regional
Sierra Club :: Organizations

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Cascadia Institute - Documents and maps on the Cascadia Bioregion.
Cascadia Wildlands Project - Information and news on campaigns to defend the forests, wildlife, and waters of the Cascadia bioregion
Mountain Caibou Project - Aims to protect the species by saving its winter feeding ground: the inland temperate rainforests of British Columbia, Washington, Idaho, and Montana. Includes species and habitat information, opportunities to get involved, links to related sites, and contact details.
Natural Resources Defense Council - BioGems - Campaign aimed at saving wildlands of exceptional natural value in North and Central America.
Meta Description: [ NRDC's BioGems campaign to save wild places in the Americas. ]
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North American Bear Society - Supports the conservation and management of the bears of North America.
North American Pollinator Protection Campaign - Works to protect the pollinators of the North American continent.
North American Waterbird Conservation Plan - Created to link the work of individuals and institutions having interest and responsibility for conservation of waterbirds and their habitats in the Americas.
NorthWest Ecosystem Alliance (NWEA) - Protects and restores wild lands in the Pacific Northwest and supports such efforts in British Columbia.
ONE Northwest - A nonprofit organization helping the conservation community in the Pacific Northwest through the effective use of electronic networking technologies.
The North American Waterfowl Management Plan - International conservation program centred in Alberta, involving Canada, the United States and Mexico, with the objective of restoring waterfowl populations. Includes news items and photographs, publications, project information, links to related sites.
Meta Description: [ NAWMP is an international conservation program involving Canada, the United States and Mexico, with the objective of restoring waterfowl populations to average levels of the 1970s. Under the Plan, waterfowl population goals were established and the key habitats that would require restoration and ... ]
Tidepool - Environmentalist news and information for the rain forest coast of the US Pacific northwest and Canada's west coast.
Meta Description: [ TIDEPOOL: News for Salmon Nation. A Daily News Source For the Pacific Northwest. Covering Alaska, BC, Washington, Oregon, Northern California ]
United Plant Savers - Network of business, government and nonprofit groups trying to stop plant extinction and save native and medicinal plants of North America.
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