Want to restore the planet’s ecosystems and see your impact in monthly videos? The first 100 people to join Planet Wild with my code SABINE48 will get the first month for free at: https://planetwild.com/r/sabinehossenfelder/join/48 If you want to get to know them better first, check out their project cleaning up one of Europe’s most polluted rivers: https://planetwild.com/r/sabinehossenfelder/m27/48 The Doomsday clock, which symbolically measures how close the world is to nuclear war, is