Paul Crutzen, Mario Molina and Sherwood Rowland were awarded the Nobel Prize in Chemistry in 1995 for helping us understand why the ozone layer, which protects us from harmful UV radiation, was disappearing. On this day, in 1987, nations signed the Montreal Protocol on Substances that Deplete the Ozone Layer in order to fix the problem. Thanks to the laureates work we have managed to reverse this depletion and today the ozone layer is starting to recover. GIF: Ozone depletion occurs in cold temp

This is Earth as seen from the surface of the Moon 🌍🌑 a breathtaking view that reminds us how tiny yet beautiful our home truly is. Captured first during the Apollo missions, this view known as the “Earthrise” shows our planet glowing blue and white, full of life, surrounded by the endless darkness of space. While the Moon is silent, cold, and lifeless, Earth shines with color, clouds, and oceans the only known world that supports life. 💙 Moments like this remind us that we all share the same