A&O SCI 1 Chapter Notes - Chapter 6-7: Reforestation, Cenozoic, Cambrian Explosion
8 Dec 2016
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Document Summary
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. The deep ocean is the largest reservoir of carbon. Photosynthesis and plant growth because the flux of carbon from atmosphere to land. Atmospheric co2 dissolving in the surface ocean cause the flux of carbon from atmosphere to ocean. Decaying plant matter/respiration causes flux of carbon from land to atmosphere. Co2 dissolved in surface ocean migrating to the atmosphere causes flux of carbon from ocean to atmosphere. Fossil fuels, land use, and cement production cause anthropogenic flux of carbon to the atmosphere. Human produced carbon will get entrained in these natural exchanges, ending up in the land surfaces and oceans. Other emissions are taken up by organisms, incorporated into the skeleton of organisms, and buried in deep sea sediments. Reforestation, co2 fertilization causes uptake of co2.
