Sentences with phrase «thin coal seams»
Mountaintop removal is a radical form of coal mining in which up to 800 feet, sometimes more, of densely forested mountaintops are literally blown up to reach thin coal seams.
http://www.climatesciencewatch.org/ Not exact matches
Yes, it's true that many major banks invest in companies that engage in the environmentally destructive practice of mountaintop removal (MTR) coal mining, whereby the tops of mountains are removed by explosives to expose thin seams of recoverable coal.
Some producers are shifting their focus to metallurgical coal, a higher - quality form that is mined underground, rather than the thinner seams exposed by mountaintop mines.
Marfork had been virtually destroyed by mountaintop removal mining, which involves completely blasting off the tops of mountains so that huge machines can mine thin seams of coal.
Epidemiologists have linked the new wave of black lung cases to breathing in more silica dust, likely the result of a long - term shift to mining thinner seams of coal.