Guyana suspends gold, diamond mining permits

The South American country of Guyana said it had suspended the granting of new permits to mine for gold and diamonds in rivers because of concerns over widespread pollution.

Chemical weathering controls erosion rates in rivers

Chemical weathering can control how susceptible bedrock in river beds is to erosion, according to new research. In addition to explaining how climate can influence landscape erosion rates, the results also may improve scientists' ...

China may need 300 years to beat desertification

Huge population pressures, scarce rainfall and climate change have made China the world's biggest victim of desertification, a problem that could take 300 years to reverse, state media said Wednesday.

Web-based program designs more efficient farm terrace layouts

From the time of the Babylonians to the Incas, terracing has been used to prevent water from eroding steep and hilly croplands. Designing terrace layouts can be time consuming and labor intensive. Now, University of Missouri ...

Louisiana hopes to fight coast erosion by mimicking nature

Back when the Mississippi River flowed wild, its ever-shifting waters acted as a continent-sized earth mover, picking up sand and dirt from the North, depositing it in the Delta region and eventually creating the land that ...

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