Start Date: End Date: Published Date Data Date
Deforestation in Monarch Butterfly Reserve
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Published March 7, 2008
Each year millions of monarch butterflies migrate thousands of miles back and forth from wintering grounds in Mexico to their breeding locations in the eastern United States and Canada. In the fall, the monarchs return to just 12 forested mountaintops in central Mexico, where they form colonies in which millions of butterflies cluster on the trunks and branches of the trees. Despite the creation of protected areas and reserves, illegal logging has been steadily shrinking this unique, critical monarch habitat.
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Edmund Hillary’s Everest Route
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Published January 12, 2008
At 6:30 a.m. on May 28, 1953, Edmund Hillary and Tenzing Norgay set out from a camp high above the South Col on the Southwest Face of Mount Everest and began the ascent for which both would become famous. Fighting through snow, winding along an exposed ridgeline with drops of over 1,000 meters (3,300 feet) on either side, scrambling up steep, rocky steps, and finally climbing a sloping snowfield, the pair reached the summit at 11:30 a.m. It was the first known climb of the world’s tallest mountain.
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Summit Close Ups of Two African Volcanoes
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Published December 11, 2007
This pair of high-resolution images from the commercial Ikonos satellite shows the craters of Nyamuragira and Nyiragongo, both of which are located at the far eastern edge of Democratic Republic of Congo, north of Lake Kivu.
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Logging in Northern Republic of Congo
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Published July 5, 2007
In recent decades, industrial logging has intensified in the dense tropical forests of central Africa, but few data sets exist that can help ecologists and policymakers monitor the occurrence and impact of logging over wide areas in that part of the world.
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Tornadoes Strike Enterprise, Alabama
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Published March 8, 2007
A massive tornado tore through Enterprise, Alabama, on March 1, 2007, leaving a swath of devastation about 180 meters (200 yards) wide through the small city. In the center of the storm’s path was Enterprise High School, where students sheltered in hallways as the tornado struck. The Ikonos satellite captured this detailed image of the school on March 5, 2007.
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