We also look at the differing roles of ozone in the stratosphere where it protects us from high intensity ultra-violet radiation from the Sun and in the troposphere where ozone is an important greenhouse gas, contributing to global warming.
Scientists assume that the ozone hole will slowly close over the next 50 years. Increasing cooling in the stratosphere may, however, slow down the recovery of the ozone layer. In this unit we investigate what is going on.
|
|
|
|
1. Ozone hole 2003 © NASA GSFC
|
|