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Interior Announces Grand Canyon Mining Moratorium

The U.S. Department of the Interior is placing a 20-year moratorium on new mining claims in and around the Grand Canyon. Environmentalists say the ban is crucial to protecting the region. However, the mining industry and some Republicans say the moratorium will be harmful to Arizona's economy and the nation's energy independence.
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Possible Iran Sanctions Causes Worry In Greece

The economic picture in Greece is already bleak. Talk of sanctions against Iran is new cause for worry, as Greece gets about a third of its oil from Iran. While Greece may be able to find other suppliers, it's unlikely to get as good a deal on price as it currently gets from Iran.
NPR

Solar Panels Compete With Cheap Natural Gas

With new, affordable supplies of natural gas coming to market, renewable forms of energy are having difficulty competing. Electricity prices are down, which means it now takes longer for people who installed solar panels to recover their investment.
NPR

Fracking Byproducts May Be Linked To Ohio Quakes

Melissa Block interviews John Armbruster, a seismologist with Lamont-Doherty Earth Observatory, part of Columbia University, about why he believes the waste from fracking in Ohio has led to the earthquakes there. He says the injection of waste water from the fracking process created pressure on nearby faults, and he expects the quakes to continue — even after the process is stopped.
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Exploring Stephen Hawking's 'Unfettered Mind'

The scientist is known as much for his contributions to theoretical cosmology and quantum gravity as for his willingness to make science accessible for the general public. His work is the topic of a new biography by science writer Kitty Ferguson.
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Year in Review: Science Stories of 2011

From the tsunami-damaged Fukushima nuclear power plant to the end of NASA"s shuttle program, a great deal of science stories made headlines this year. Science writers Mariette DiChristina, Matt Crenson, Steven Levy, and Paul Raeburn join Ira Flatow to discuss the year's top stories in science.
NPR

Gas Pains? U.S. Diesel, Gas Exports Surpass Imports

For the first time since Harry Truman was president, the country is exporting more petroleum products than it imports. Domestic demand for diesel and gasoline is down while production is up. That's made it difficult for some refineries to stay in business.

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