Have you ever heard of the ozone hole? If you were born after the 1990s, the chances are you might not have. If you were born before, the chances are you have forgotten all about it. But just before the turn of the century, it was on everybody’s lips. The biggest environmental disaster humanity had encountered up to that point.

In our new season, Ozone: How to solve an environmental crisis, we will tell you all about what caused the ozone hole, how it was discovered and how the world came together to fix it. We will also show you how the lessons learnt then can help us in solving the climate crisis today.

This is the story of the ozone hole.