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Building sustainable societies. This section examines the important role that coal plays in building modern societies and in supporting access to energy.
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The United Mine Workers of America (UMWA) marched on Thursday in Pittsburgh, Pennsylvania, in protest against the energy policies .
Subsidence over abandoned coal mines is a potential hazard for an estimated 13,000 people and 5,000 houses along the Front Range Urban Corridor (1985 figures).
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