The amount of toxic selenium and arsenic able to escape from coal ash depends largely on their nanoscale structures.

Dean Slocum and Chris Anderson of Acorn International on artisanal miners, China in Africa, the NGO-industrial complex, Juukan Gorge and mining’s changing guard.

Despite national progress following the approval of the Mercury and Air Toxics Standard, Texas and North Dakota stand out as stubborn continuing sources of mercury emissions.