REPOST: Happy Earth Day

Due to the L.A. fires, I am reposting an older podcast about the history of Earth Day. It is sad to note that in my intro, you will hear alarming sirens in the background, which juxtaposes the beautiful sound of the birds chirping in the reposted podcast I recorded five years ago.  If you want to donate to help those affected by the L.A. fires, I have several links on my Website at  www.MathScienceHistory.com. Thank you so much for your contribution and help! To buy my book Hypatia: The Sum of Her Life on Amazon, visit https://a.co/d/g3OuP9h Until next time, carpe diem! All music by Lloyd Rodgers has no Copyright and no rights reserved.