On this week's Issues & Ideas, we commemorate the 50th anniversary of Earth Day, by speaking to its organizer, Denis Hayes, in a wide-ranging and in-depth conversation. Correspondent Tom Wilmer takes us to Camp San Luis Obispo to find out what the National Guard are doing there. To see how virtual learning is faring during pandemic school closures, we check in with school districts in Monterey and San Luis Obispo counties. We also learn how Santa Barbara teenagers are helping seniors during the pandemic through a program called 'Zoomers to Boomers.' All that and more on this episode of Issues & Ideas.