Environmental Science 1021F/G Lecture Notes - Lecture 2: Triple Bottom Line, Rachel Carson, Environmental History
10 Dec 2018
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Document Summary
What is the environment: a combination of habitat, biomass, the surroundings or conditions including abiotic (non-living) and biotic (living) things in which an organism lives. What is environmental science: a field of research to understand the world and our relation to it, natural and applied science. Biocentrism: shifting towards this in the 1900-mid 1900"s, life has value and we should protect it , a big push towards biocentrism was iconic species, example: the beaver. Ecocentrism: thinking about ecosystems as a whole system wildlife and how humans benefit from it, they provide more than just food, example: they filter our air. Earths history from the formation of the earth to our modern day earth. Luca = last universal common ancestor: extremophiles = bacteria that lives in very extreme environments that includes extreme heat, extreme chemicals, etc. 25-100 years of radiation: oxygen, temperature, bilateral symmetry and vision, ecological feedback, predator vs. prey. Generally caused by big changes in the climate: volcanos.
