erosion

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Iconic Arch in Utah Park Collapses

First to fall since 1991

(Newser) - A popular stone arch collapsed early last week in Utah's Arches National Park, the AP reports. First discovered in 1948, the Wall Arch fell victim to gravity and the very same force that formed the sandstone structure—erosion. "They all let go after a while," said a park...

Canyon Older Than Thought?
Canyon Older Than Thought?
Mar 6, 2008 7:56 PM CST

Canyon Older Than Thought?

Study says formation began 17M years ago; others stick to 5-6M

(Newser) - The Grand Canyon might be three times older than previously thought, the Washington Post reports. A study in Science claims that a river—not the Colorado, but a smaller one—began carving the oldest part of the canyon 17 million years ago. It contends that the canyon-building greatly accelerated 5...

New Worry: Global Soil Change
New Worry: Global Soil Change
Feb 8, 2008 6:20 PM CST

New Worry: Global Soil Change

Scientists propose calling current geological era 'Anthropocene'—human-made

(Newser) - Earth's changing soils appear less able to support farming and plant and animal diversity because of human activity, a study shows. "Global soil change," which is occurring most severely in Africa and Asia, has a heavier hand in climate change than previously thought, National Geographic reports. Degraded soils...

Great Lake Getting Less Superior
Great Lake Getting Less Superior
Aug 15, 2007 4:45 PM CDT

Great Lake Getting Less Superior

(Newser) - Water levels in Lake Superior are down a whole foot this year, and scientists say man is to blame. The world's largest body of fresh water by surface area has suffered an on-and-off drought for four years, but levels may reach an all-time low this summer. Climate change is partially...

Miami Beach Battles Sand Hassle
Miami Beach Battles Sand Hassle
May 16, 2007 5:21 PM CDT

Miami Beach Battles Sand Hassle

(Newser) - A new kind of sandstorm is brewing in South Florida. As its world-famous beaches face crippling erosion, Miami Beach is hitting up its neighbors for the scarce stuff. But with most of Florida's communities strapped, Miami Beach, like coastal communities in California and Hawaii, is turning to foreign countries, which...

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