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Questions and Answers
What has the global increase in greenhouse gases been attributed to?
What proportion of all greenhouse gases is created by coal?
How does current research aim to increase the energy-producing efficiency of coal?
Compared with ordinary coal, how do 'clean' coals generate power?
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To control dust at mine sites, what do mining companies often use?
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Which factor is NOT mentioned as contributing to the global increase in greenhouse gases?
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