Start Date: End Date: Published Date Data Date
Irrawaddy Delta, Burma
540 x 405 JPEG
Published May 22, 2008
The clearing of the natural mangrove forests has left low-lying cropland and villages exposed to the sea.
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Western Namibia
720 x 480 JPEG
Published May 18, 2008
Throughout southern Africa, the a long line of broken cliffs and rock outcrops, called the Great Escarpment, separates coastal deserts from high-elevation inlands, with land levels rising swiftly.
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Chaiten Volcano
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Published May 11, 2008
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Lake Janisjarvi Impact Crater
Published April 6, 2008
Lake Jänisjärvi is a roughly oval-shaped lake, some 13 by 17 kilometers (8 by 11 miles) across, in northwestern Russia, near the Finnish border. The basin for this lake was formed hundreds of millions of years ago by a meteorite impact.
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Nicholson Crater, Canada
Published March 23, 2008
Some 400 million years ago, a meteor struck Earth in what is now Canada’s Northwest Territories. The 12.5-kilometer- (7.8-mile-) wide crater is now Nicholson Lake, one of many small lakes that dot the sub-arctic, glacier-scoured landscape.
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Pingualuit Crater, Canada
Published February 10, 2008
Pingualuit Crater holds a lake about 267 meters (876 feet) deep. Because this lake has no connection to any other water body, inflows from other lakes cannot contaminate Pingualuit’s sediments.
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Island in the Sky, Canyonlands National Park
Published January 3, 2008
This park in Utah encompasses some of the most remote and rugged terrain in the continental United States.
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Nyamuragira and Nyiragongo
Published December 10, 2007
In central Africa, in the Democratic Republic of the Congo, sit two volcanoes: Nyiragongo and Nyamuragira. Besides their proximity to Lake Kivu in the south, these volcanoes share the capacity for destruction, each having produced its share of catastrophic eruptions since the early twentieth century. Yet these volcanoes differ markedly from each other, one being a low-profiled structure rising subtly from the plain, and the other sporting steep slopes.
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