The Ozone layer protects the Earth from harmful ultra-violet rays emitted from the Sun.
Ultra-violet rays cause:
- Skin cancer
- Damage to vegetation
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
- Methane also affects the ozone layer (
]] - Food Systems)
Created on: 2021-01-08
Inspired by: Course - Planetary Boundaries
Related: biosphere stewardship |