ENVIRON 102 Lecture Notes - Lecture 18: 30Th Parallel North, Lyme Disease, Thermal Expansion
4 May 2018
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4.21.15 Lecture Recap Notes
EXTRA CREDIT QUESTIONS:
CFCs and the ozone layer
Stable in the troposphere but not in the stratosphere
Implications for this – UV radiation breaks down the CFCs in the stratosphere
Breaks down our ozone layer, more radiation which can cause skin cancer
Ozone tropospheric levels peak during the daytime (do some more research)
Hydrocarbons and plants generate nitrogen oxides
Middle of the day, a lot of sunlight and enough time for ozone to react with sunlight
Toxic in the tropospheric level
Rainshadow and why does it occur (ditto)
Rainshadow is on the leeward side of the mountiain –dry region
How does this relate to why there are deserts 30 degrees north and south of equator?
o Atmosphere rises up, cools, which means it holds less moisture so it won’t rain – DESERTS!
Sea level differences in local areas
Isostatic rebound (GO GOOGLE)
Rise of land masses that were depressed by the huge weight of ice sheets during the last glacial
period, through a process known as isostasy
Actual rising temperature causes SLR – thermal expansion
Climate change
Greenhouse gases effect
Stratosphere prevents mixing of the gases (heat is trapped)
CO2 and water vapor – thousands of times more efficient at absorbing heat
o Even though really small amounts
o Other greenhouse gases: CFCs and methane
Demographic model
K-selected species and r-selected species
Lyme disease in suburban areas
Dilution effect
Habitat fragmentation
RECAP CLASS:
Threats are exaggerations and there is progress (Lomberg)
Lester Brown Plan B
Immediate concerns vs. long-term problems
Are these opinions representative of only the region where the author is from?
Go look at powerpoint for the TAKE HOMES!
find more resources at oneclass.com
find more resources at oneclass.com
Document Summary
Implications for this uv radiation breaks down the cfcs in the stratosphere. Stable in the troposphere but not in the stratosphere. Breaks down our ozone layer, more radiation which can cause skin cancer. Ozone tropospheric levels peak during the daytime (do some more research) Middle of the day, a lot of sunlight and enough time for ozone to react with sunlight. Rainshadow is on the leeward side of the mountiain dry region: atmosphere rises up, cools, which means it holds less moisture so it won"t rain deserts! Rise of land masses that were depressed by the huge weight of ice sheets during the last glacial. Climate change period, through a process known as isostasy. Actual rising temperature causes slr thermal expansion. Co2 and water vapor thousands of times more efficient at absorbing heat. Stratosphere prevents mixing of the gases (heat is trapped: even though really small amounts, other greenhouse gases: cfcs and methane.
