The first episode of The Overstory's second season was originally intended as a celebration of the 50th anniversary of Earth Day. As the pandemic unfolded, we pivoted to consider what social activism will look like in this season of social distancing. Hear from Denis Hayes, founder of the Earth Day Network; Zero Hour founder Jamie Margolin; author and artist Jenny Odell; and the Reverend Lennox Yearwood, Jr. Plus also: Ms. Green explains her investigation into PFAS in menstrual underwear.