NPR News: Western States Face Challenges Cleaning Up After Coal Mining

Western States Face Challenges Cleaning Up After Coal Mining
Coal companies in the West have mined an area the size of New York City — more than 400 square miles. Now they have to clean it up, and it's given rise to a whole new reclamation economy.

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Làm đẹp Blog 247 September 1, 2016 at 03:28AM
Category Health & Science