Expert-reviewed information about the Earth. For everyone.
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Featured Video
Jean-Michel Cousteau: use of oil dispersants...
The Rundown caught up with ocean explorer and occasional PBS host Jean-Michel Cousteau to chat about what his team discovered on dives in the aftermath of the Deepwater Horizon... 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 Article
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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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 »
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Featured Article
Rooftop runoff contamination
[The lead author of this article is Dennis Lye] Rooftop runoff contamination is receiving increasing attention as environmental and health issues, particularly as human... More »
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Featured Article
Ecological pyramids
Ecological pyramids are diagrams that illustrate how ecologically important factors, such as energy, biomass, and population size, vary between trophic levels in an ecosystem.... More »
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Featured Article
Jamaican dry forests
Jamaican dry forests is an ecoregion that covers a minority of the land area of the nation island of Jamaica, which ranks fifth among the Earth's islands in terms of endemic plant... More »
Temperate rainforests
Last Updated on 2013-05-25 at 21:50
This article draws upon the work of numerous writers, published by Ecotrust in the cited works below, and was also contributed to by Malka Geffen of Ecotrust.... More »
Fossil fuel
Last Updated on 2013-05-25 at 21:07
Introduction
Fossil fuel is any naturally occurring carbon compound found in the Earth's crust that has been produced by anaerobic conditions and high... More »
Rooftop runoff contamination
Last Updated on 2013-05-25 at 19:49
[The lead author of this article is Dennis Lye]
Rooftop runoff contamination is receiving increasing attention as environmental and health issues, particularly as human... More »
Niger River
Last Updated on 2013-05-25 at 17:50
The Niger River is the third largest river in Africa, and the fourteenth longest river in the world. Rising in the Guinea Highlands, the river flows 4,200 kilometres through... More »
Northwestern thorn scrub forests
Last Updated on 2013-05-25 at 15:23
The Northwestern thorn scrub forests ecoregion represents a large expanse of degraded dry forest surrounding the Thar Desert. Neither exceptionally species-rich nor high in... More »
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