EESC 1174 Lecture Notes - Lecture 5: Asteroid Family, Wet-Bulb Temperature, Homeostasis
20 Jun 2016
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Long term paleoclimate: faint sun paradox, solar output was only 70% of today 4. 5 billion years ago, at current ghg levels, this would make earth so cold everything would freeze over. All planets: venus runway greenhouse effect, mars frozen waste land. So how has earth"s atmosphere stayed so stable: earths thermostat. A. 4. longterm carbon cycle rock weathering (chemical reaction) happens faster when its warmer. Rate of co2 going in is uncontrollable but co2 going out is dependent on the at- mosphere. Increased chemical weathering increased co2 removal by weathering cools down with less co2. A. 6. a) decreased temp, precipitation and vegetation so weathering slows down decreased co2 removal reduction of initial cooling. Snowball earth - how extreme can climate change be: paul hoffman, rocks from 2. 4-2. 1 and . 6 billion years ago, drop stones. C. 3. we can figure out where these rocks formed. C. 4. e) something magnetic dips more as you get closer tot he pole.
