Poland Hopeful Coal's the Future, Not Just the Past

Think of coal and chances are you picture dirty rocks and thick plumes of smoke. But the fuel that drove the Industrial Revolution could help power the future, if technology can keep up. In Katowice in Poland scientists are hoping that's the case. They've successfully converted underground coal into gas, and extracted that on the surface. Professors at the Global Coal Mining Institute here say it's a significant development.

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