ABSTRACT
The international regime to protect stratospheric ozone is one of the most effective cases of global environmental policy. Naturally occurring ozone helps to shield the Earth from harmful ultraviolet radiation emitted by the sun. Destroying this “ozone layer” would be disastrous and a significant depletion would dramatically increase skin cancers and eye cataracts, weaken immune systems, harm many plants and animals, and damage certain food crops and ecosystems.
