Expert-reviewed information about the Earth. For everyone.
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Nuclear power
Nuclear power is the generation of electricity from controlled reactions within the nucleii of atoms that release energy used to boil water, the steam from which drives a... More »
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Featured Article
West Nile Virus
Since 1999, more than 30,000 people in the United States have been reported as getting sick with West Nile virus. Infected mosquitoes spread West Nile virus (WNV) that can... More »
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Featured Article
Flora of Napa County, California
Napa County is a rural county in northern California encompassing nearly 500,000 acres (200,000 hectares), about 0.5 % of the landmass of the state. It is located 25 miles (40... More »
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Featured Gallery
Cabo de Gata-Nijar Natural Park, Andalucia,...
Cabo de Gata-Nijar Natural Park lies along the Alboran Sea of the Mediterranean coast of Andalucia, Spain. The most arid area in the entirety of Europe, it boasts varied... More »
Sumatran lowland rainforests
Last Updated on 2013-05-23 at 19:13
The Sumatran lowland rainforests are one of the most diverse forests on Earth and also among the most threatened.
These forests contain comparable levels of More »
Extraterrestrial soils
Last Updated on 2013-05-23 at 18:48
Extraterrestrial soils may be defined as any of the solid granular crustal features of planets and moon other than those soils on planet Earth. Despite four decades of space... More »
New Caledonia rainforests
Last Updated on 2013-05-23 at 18:36
Introduction
The islands of New Caledonia contain some of the most distinctive plants in the world, with a large number of species, endemics, and an ancient character... More »
Eastern Miombo woodlands
Last Updated on 2013-05-22 at 21:56
Confined to the lower elevations of the Central African Plateau, the Eastern Miombo woodland ecoregion ranges from southern Tanzania to northern Mozambique and... More »
Balsam fir
Last Updated on 2013-05-22 at 21:48
This plant guide on the Balsam fir, Pinus balsamea L., was chiefly prepared and contributed by the U.S. Department of Agriculture's Natural Resources Conservation... More »
Andaman Islands rainforests
Last Updated on 2013-05-22 at 21:38
Located between the Bay of Bengal and the Andaman Sea, between India to the west and Myanmar to the east, the Andaman Islands are affiliated with both countries in... More »
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