Trump tackles Obama's legacy on global warming

The EPA and other agencies can now ignore rising seas, ocean acidification, heat waves and drought — which most scientists attribute to climate change. President Trump doesn't accept it, and he's revoking Obama Administration limits on the oil and coal industries in the interests of "energy independence." Several states plan to fight him every step of the way, and economics now favor energy from natural gas, the sun and the wind. We hear what's next for the Clean Power Plan, the Paris Agreements and the strengths and limits of presidential power.