One spring morning in 1914 members of the United Mine Workers of America clashed with guards employed by the Rockefeller family and state militia in Colorado. When the dust settled, 19 men, women and children from the miners' families lay dead. The strikers had killed at least 30 men and destroyed 6 mines and laid waste to two company towns. We revisit a discussion with Thomas Andrews, author of his book "Killing for Coal" and recounts this 1914 massacre and the great coal field war. He situates it not only in labor history but in the environment. As fossil fuels and especially coal shaped the west, and continue to do so.