Philosophy professor Christopher Preston reveals the mysteries and challenges at the heart of endangered animal population resurgences. (2:21) Then Jonny Vasic with Utah Physicians for a Healthy Environment talks about a legal settlement aiming to reduce the burden of vehicle pollution across the country. (15:30) Plus, Bob Deans, director for strategic engagement in the Natural Resources Defense Council, breaks down ConocoPhillips’ massive Willow Project. (26:27)