Geography 1400F/G Lecture 11: 11 Lecture 26/10/2015
16 Feb 2016
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Biomass in ancient life forms trapped, compressed, and cooked" (geothermal heating) Physics is clear: combusting this trapped carbon changes chemistry of the atmosphere. Bill mckibben: in 28 years of thinking about climate change, no single story has made me as angry as today"s revelation about exxon. Even exxon"s senior scientists told management that there is indeed climate change as a result of burning fossil fuels, and that the temperature has risen by 3-4 degrees c. Carbon naturally cycles between biosphere (and between biosphere and pedoshpere (soils), and lithosphere) and atmosphere ((photosynthesis and respiration) (between pedosphere and atmosphere)), oceans (photosynthesis and respirations), and within oceans; it is constantly in motion. Flux" changes slowly over very, very long periods of time. Very few large dramatic or sudden changes. Change is relatively constant, but does change. Fossil fuels is photosynthesizes energy (ancient biomass trapped) that has been formed over hundreds of millions of years, and effectively sealed away.
