01:460:100 Lecture Notes - Lecture 2: Ozone Layer, Water Vapor, Thermosphere
26 Apr 2019
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Climate= weather averaged about over 30 years (what"s in your closet, what you"re prepared for) Cold on top and warm at the bottom, therefore, it is unstable (circulation) Ozone layer- creates warmth by blocking uv rays. Stuff tends to stay in the stratosphere for a long time - no circulation. Temperature decreases with elevation (the further away from the surface the colder it gets) Earth"s climate is fundamentally controlled by the way solar radiation interacts w/ When the sun"s rays hit the surface they are re-radiated as infrared rays. Heat is trapped by greenhouse gases (mostly co2) W/o greenhouse effect surface would be -20 degrees f (too cold for water and to support life) W/ greenhouse effect surface is 63. 5 degrees f. Plant make their leaves by pulling down carbon creating summer/ winter. Drill into ice to see air bubbles from the air from years prior. Long term increase in co2 from burning fossil fuels.
