MICR 4280 Lecture Notes - Lecture 25: Electron Acceptor, Thaumarchaeota, Anthropocene
1 Apr 2019
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Friday march 22 n d lecture 25. Two billion years ago, cyanobacteria oxygenated the atmosphere and powerfully disrupted life on earth, but they did not know it: we are the first species that"s become a planet-scale influence and is aware of the reality. The bacteria an d arc haea are produce rs a n d consumers of gree n house gases: Important during earth"s faint young sun days, now integral components of the. Increasing the consumption of carbon dioxide by the producers. If n20 is also produced by thaumarchaeota oxidation of ammonia: do know that they have divergent amoa. Global chan ge s in the earth system as a result of increased human e activitie s. Ipcc reports are the result of extensive work of man y. 21rst century: reducing energy demand through efficiency enhancements and behavioral changes is a key mitigation strategy. Substantial reduction in emissions require significant changes in investment patterns and appropriate policies.
