Listen to the Living on Earth interview: “1970 saw the birth of major environmental laws including the Clean Air Act and the National Environmental Policy Act, or NEPA. Vermont Law School Professor Pat Parenteau and Host Steve Curwood reflect on the development of environmental law in the 50 years since: important successes like improved air and water quality throughout the nation, and major shortfalls like the lack of climate legislation. Finally, the pair look forward from today, considering the most prominent environmental challenges in the 21st century. (21:08)”