Additional coal capacity was unavailable due to frozen coal piles. (energytomorrow.org)
A relatively low - cost solution would be to simply require railroad companies to cover train cars carrying coal and electricity generation companies to cover coal piles. (climaterealityproject.org)
In a recent study, Nicholas Muller and I uncovered a source of air pollution from coal that has not received much policy scrutiny: the storage and handling of coal piles. (climaterealityproject.org)