SINGRAULI, India -- Here at the foot of a mountain of coal mining debris live 150 people in one of the most polluted places on Earth. The air is dense with coal dust and other particulates. The drinking water source is a spring that emerges from the coal dump. When the rains come, landslides from the rock pile threaten to crush the small mud homes at its foot. India's coal boom is meant to power the country's economic growth and supply its 400 million people who do not currently have electricity. Indeed, India sees its energy mix as inextricably linked to coal, and government leaders are unapologetic about India's right to pollute, just as other nations have done in the quest for prosperity.