Father of five, Gopi Bhunia standing in the house he had to abandon when noxious gases began to erupt from the ground below. Mining operations in the region have resulted in coal fires that rage just below the surface of the ground, making it too hot to walk with naked feet. Noxious gases that spew up from fissures, rendering the environment toxic. Residents who live above the furnace make $2 a day collecting small chunks of coal that they sell to illegal middlemen. One or two houses collapse annually into vast underground caverns left unfilled by abandoned mining operations.