Today on Boston Public Radio:

— We opened our lines to ask listeners: how long can do you think you can self-quarantine?

— Legendary actor Alan Alda discussed his “Clear+Vivid” podcast, where he recently interviewed frequent BPR contributor Sy Montgomery.

— "Boston Globe" columnist Shirley Leung discussed the unique challenges facing Boston’s undocumented immigrants amid coronavirus, and the latest on how the pandemic is affecting local small businesses.

— Journalist Laura Sullivan discussed "Plastic Wars,” the latest "Frontline" documentary on plastic waste and the failures of the global recycling system.

— Heather Goldstone, Chief Communications officer at the Woods Hole Research Center, discussed the parallels between coronavirus and the climate crisis, and whether we ought to put our conservation efforts on hold while we focus on the pandemic.

— CNN’s John King discussed the government’s ongoing pandemic response, and what's happening with the 2020 presidential race.

— NBC Sports Boston reporter Trenni Kusnierek discussed the postponed 2020 Olympics and the joys of watching marble racing.