Two recent research papers suggest the massive West Antarctica ice sheet has begun melting, with catastrophic consequences for global coastlines. (Photo: VANDERLEI ALMEIDA/AFP/Getty Images)

Researchers: Catastrophic Collapse Of West Antarctic Ice Sheet Begins

Unstoppable melting could mean 11-13 feet sea-level rise by the end of the century.

CBS Tampa–05/13/2014

Photo credit should read GABRIEL BOUYS/AFP/Getty Images

Best Summer Backpacking Trips In America

While it’s important to understand how to be prepared and stay safe during a backpacking trip, even if it’s only for the day, there’s a wealth of natural beauty to explore throughout the country. The following are just five of the best summer backpacking trips in America.



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