The Ozone layer protects the Earth from harmful ultra-violet rays emitted from the Sun.

Ultra-violet rays cause:

  • Skin cancer
  • Cataracts
  • Damage to vegetation

![Atmosphere Layers](Atmosphere Layers.png)


One of the Planetary Boundaries.

  • Chemicals (chlorofluorocarbons) that we used as refrigerants, as solvents, propellants move up the atmosphere (chlorine, bromine) and breaking ozone molecules apart, thereby depleting the stratospheric layer.

  • Montreal protocol in the mid-1980s instrumental to stop depletion and move towards a safe operating space

  • But we still have to be careful

Created on: 2021-01-08 Inspired by: Course - Planetary Boundaries Related: biosphere stewardship |