A&O SCI 1 Lecture Notes - Lecture 3: Cenozoic, Pleistocene, Cambrian Explosion
20 Oct 2016
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Fossil fuels: oil and its derivatives, natural gas, coal. What is the general trend of co2 emissions from fossil fuels and cement: carbon emissions have increased steadily since the beginning of the industrial era. What is the general trend of co2 emissions from land-use change: about 1. 5gtc/yr. from 1960 to 1990 and a general decrease in emission since. Which is the largest reservoir of carbon: deep ocean. What causes the flux of carbon from atmosphere to land: photosynthesis, plant growth. What causes the flux of carbon from atmosphere to ocean: atmospheric co2 dissolving in the surface of the ocean. What causes the flux of carbon from land to atmosphere: decaying plant matter/respiration. What causes the flux of carbon from ocean to atmosphere: co2 dissolves in the surface ocean migrating to the atmosphere. How old is earth (roughly): 4. 6 billion years old.
