Longwall Mining Published — January 12, 2009 Updated — May 19, 2014 at 12:19 pm ET The hidden costs of clean coal Kristen Lombardi Ochen Kaylan Sarah Laskow Introduction Read more in Environment Environment Wal-Mart’s mysterious missing exit signs: A tritium health risk? Environment Obama stimulus plan may harm environment Share this article Share on Facebook Share on Twitter Share on Reddit Share by Email
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