Episode 7 opens with a dispatch from the historic climate strike, as we follow youth climate organizer Daphne Frias while she navigates the New York City march from her wheelchair. We also take listeners to the White Mountains of New Hampshire, where we feed Oreos to a bear (in the name of science, of course!) and learn about the latest findings on animal intelligence. We hear from a West Virginia woman who is using her singing voice as a vehicle for environmental activism. And we say a fond farewell to our longtime advice columnist, Mr. Green.