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The Salt
2:59 pm
Tue December 18, 2012

Building A Rover Of The Edible Kind

The other Mars Curiosity rover, made of gingerbread and on display on the Caltech campus.
Brian Bell courtesy California Institute of Technology

Originally published on Thu December 20, 2012 11:47 am

The folks at the California Institute of Technology have built another Mars rover, but this one will never get to leave Earth. Not surprising, really, since it's made of gingerbread.

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The Two-Way
2:46 pm
Tue December 18, 2012

How Much Good Can You Do? There's A Calculator For That

Toby Ord, founder of Giving What We Can.
Giving What We Can

Originally published on Thu December 20, 2012 2:16 pm

This time of year, many are thinking about giving to one charity or another and wondering just how much good their donations will do.

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Shootings In Newtown, Conn.
2:04 pm
Tue December 18, 2012

Officials In Newtown Follow A Well-Worn Media Script

Lt. J. Paul Vance of the Connecticut State Police conducts a news briefing Saturday in Newtown, Conn. The strategy for dealing with the wave of news media in Newtown echoes that of some past tragedies, experts say.
Jason DeCrow AP

Fielding questions from reporters Friday in the first hours after the mass shooting at Sandy Hook Elementary School, Connecticut State Police spokesman Lt. J. Paul Vance made one thing perfectly clear: The news media could consider him the one and only reliable source for information on the tragedy.

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The Salt
1:36 pm
Tue December 18, 2012

One Airport's Trash Is 2 Million Worms' Treasure

Charlotte Douglas International Airport has deployed an army of 1.9 million worms to eat through its organic waste. The airport has reduced the trash it sends to the landfill by 70 percent.
Julie Rose

Originally published on Thu December 20, 2012 2:16 pm

Food waste is not just a problem for restaurants — airports also have to deal with piles of this kind of garbage.

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The Two-Way
1:35 pm
Tue December 18, 2012

Coal May Pass Oil As World's No. 1 Energy Source By 2017, Study Says

China and India are projected to propel coal's challenge of oil as the world's top energy source within the next five years, according to a new study. Here, a man rides a bicycle toward a coal-fired power station in China's Guangdong province last year.
Mark Ralston AFP/Getty Images

Originally published on Mon March 25, 2013 1:49 pm

Despite a slowdown in U.S. consumption, coal is poised to replace oil as the world's top energy source — possibly in the next five years, according to the International Energy Agency. The rise will be driven almost entirely by new energy demands in China and India, the IEA says.

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