Beach replenishment a tough issue in Florida

(AP) -- The St. Joseph Peninsula is picture-perfect Florida: 17 miles of sugar sand beach interrupted by a few clusters of homes, each with a million-dollar view of the Gulf of Mexico.

Forests under threat from exotic earthworm invasion

It is widely acknowledged that human beings are largely responsible for the widespread alteration of ecosystems on the planet. A recent study by Dara Seidl and Peter Klepeis of Colgate University in New York traces the ways ...

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