8.8K views · 445 reactions | Happy birthday to Paul Crutzen who was awarded the Nobel Prize in Chemistry in 1955 for helping us understand why the ozone layer, which protects us from harmful UV radiation, was disappearing. Learn more: https://bit.ly/3o3DfL7 GIF: Ozone depletion occurs in cold temperatures, so the ozone hole reaches its annual maximum in September or October, at the end of winter in the Southern Hemisphere. Credits: NASA/NASA Ozone Watch/Katy Mersmann | Nobel Prize | Facebook

84K views · 3.2K reactions | You’ve probably heard of the ozone hole. You may have heard of the Montreal Protocol, which has helped limit destruction of Earth’s ozone layer. But…do you know what the ozone hole actually is? We’ve got Ozone 101 with answers to your questions here ⬇️ | NASA Earth | Facebook