1. Depletion Of The Ozone Layer
... to formalize international cooperation on this issue. Additional efforts were resulted in the signing of the Montreal Protocol in 1987. This was a treaty for the protection of the ozone layer. A total ban on the use of CFCs during the 1990's was proposed by the European Union. Hydrochlorofluorocarbons, or HCFCs, which cause less damage to the ozone layer than CFCs do are being used as substitutes for CFCs on ... ozone variations at different altitudes. Due to this and many other measures taken, the spread of many ozone depleting chemicals has been greatly reduced. Jason Doyle April 14,20...
- Word Count: 2746
- Approx Pages: 11
- Grade Level: High School