Bringing coal plants in-line with federal air quality rules is costing the coal industry billions. But environmentalists say the rules will save lives.
Earlier this month, President Obama released the widely anticipated Clean Power Plan, calling it the single most important step America has ever taken in the fight against climate change.
In Pennsylvania, the ski industry has a $360 million dollar annual economic impact. But climate scientists predict half of the state's resorts could be forced to close in the coming decades.
