publication date: Wednesday, April 22, 2020 (part of Spring 2020)
clue: Hopefully in another 50 years, we'll still have an Earth to recognize the way this Wisconsin senator and governor intended.
explanation: Nelson was one of the founders of Earth Day on April 22, 1970. more…
intended difficulty: medium
solved by: Russ Wilhelm, Steve West, Samir Mehta, and Chris Lemler