For six decades, coal has provided for — and polluted — the Navajo Nation. Demolition of a power plant brings mixed emotions.

With the definition resolved, will the EPA come for polluting coal plants? Across America, millions of tons of toxic waste are sitting in pits next to coal plants. But whether they will get cleaned up has come down to a legal debate over the definitions of words. 

Climate change is a top issue for young voters across political parties, but most of the Republican presidential candidates avoided the question.