Expert-reviewed information about the Earth. For everyone.
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Dudleya cymosa (Lem.) Britt. & Rose
Dudleya cymosa (Lem.) Britt. & Rose is a perennial low-growing succulent plant species that is endemic to California. Having a number of subspecies, this fleshy plant is... More »
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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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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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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 Article
Earth's atmosphere
The Earth's atmosphere is an envelope of gas that surrounds the Earth and extends from the Earth's surface out thousands of kilometres, becoming increasingly thinner (less dense)... More »
Strait of Hormuz
Last Updated on 2013-05-16 at 13:16
The Strait of Hormuz (26°34'0.00"N, 56°15'0.00"E) a narrow passageway connecting the Persian Gulf with the Arabian Sea and separating... More »
Oil transit chokepoints
Last Updated on 2013-05-16 at 12:45
World oil chokepoints for maritime transit of oil are a critical part of global energy security. About half of the world's oil production... More »
Get Involved with the Encyclopedia of Earth
Last Updated on 2013-05-16 at 12:19
We are looking for authors who embrace the Encyclopedia of Earth quality standards, and who are willing to work under your real name in a dynamic, collaborative environment. We... More »
Baltic Sea
Last Updated on 2013-05-15 at 22:50
The Baltic Sea is situated between Scandinavia and mainland Europe, and extends into the North Sea. The sea is split into several smaller basins termed the Gulf of... More »
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