We end our show with a story of city life and the natural world co-existing peacefully. Iggy Scam went on a mission seeking urban fisherman—guys who throw down fishing poles right down in the middle of the big city, often in the most polluted industrial environments possible.

When Eustace Conway was 17, he abandoned his normal life and decided to move to the woods.

The modern history of Niagara Falls can be divided roughly into three phases: Schemers who came in trying to exploit the Falls for tourism and failed; schemers who came in and tried to exploit the Falls for hydroelectric power, who've all gone; and the people who are left in Niagara today. Our show is about this last group: People who live in the aftermath.

Host Ira Glass, on the beach with Chris McKinney, a boy scout who is single-handedly trying to stop erosion on one stretch of beach in Mason Neck State Park in Virginia.

Professor Stephen Pyne.