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500,000 abandoned US coal mines to become giant underground water batteries with a new storage method
Beneath parts of the Appalachian Mountains, thousands of mine shafts still descend deep into the earth. Some of these vertical passages drop more than 1,000 feet, connecting long corridors carved ...
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A team of researchers led by Virginia Tech's Center for Advanced Separation Technologies, will explore new methods for cleaning coal in India. With over $1 million from the U.S. Department of State, ...
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