Extras
Ozone Hole: How We Saved the Planet
How the Montreal Protocol agreement was finalized.
The World Takes Action
Ozone Hole: How We Saved the Planet
The remarkable story of the deadly hole in the ozone layer - and how we managed to fix it.
Preview
Ozone Hole: How We Saved the Planet
Jonathan Shanklin discovers the ozone hole over the Antarctic.
Discovering the Ozone Hole
Ozone Hole: How We Saved the Planet
Computer Models at NASA showing World Predicted versus World Avoided.