SCIE 1P50 Lecture Notes - Lecture 21: Bituminous Coal, Ozone Depletion, Montreal Protocol
23 Nov 2016
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Document Summary
Challenges still face us: cfcs will remain in the stratosphere for a long time, nations can ask for exemptions to the ban. Considered the biggest environmental success story: policymakers included industry in helping solve the problem, adaptive management strategy allowed changes in response to new scientific data, technological advances, and economic figures. The montreal protocol can serve as a model for international environmental cooperation. Acidic deposition the deposition of acid or acid-forming pollutants from the atmosphere onto earth"s surface. Atmospheric deposition the wet or dry deposition on land of pollutants. Originated from burning fossil fuels: release sulphur dioxide and nitrogen oxides, react with water to form sulphuric and nitric acids. Ph scale runs from zero (most acidic) to fourteen (most alkaline) A one unit change on the ph scale represents a 10 fold unit change in acidity. Coal: lignite the cheapest coal, an abundance of, sub-bituminous and bituminous the most often burned, anthracite the best coal that could be used.
