BIOLOGY 1101 Lecture Notes - Lecture 31: Montreal Protocol, Ultraviolet, Ozone Layer
6 Sep 2016
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Document Summary
195 countries represented (138 heads of state) Goal to establish a deal on cutting climate emissions past 2020. Individual countries making emission pledges for their reduction goals beyond 2020. Discussions on how to incentivize developing countries cooperation. Current agreements only involve developed countries, and these have already expired or will soon. Pre-summit pledges would limit global temperature increases to 2. 7 to 3 degrees c (4. 8 to 5. 4 degrees f) Island nation with a population of roughly 350,000. Highest point 2. 4 m above sea level (average 1. 5 m) Sea levels rose 20 cm during 20th century. Blocks light from entering the atmosphere, greenhouse effect. Ozone layer at the poles are thinned out. Chloroflourocarbons- in the presence of uv light, they break apart, chlorine breaks bond in ozone molecule, creates chlorine monoxide and diatomic oxygen, then oxygen is released into atmosphere, oxygen bond in chlorine monoxide.
