ENV100Y5 Lecture Notes - Lecture 6: Precautionary Principle, Bioaccumulation, Scrubbers

• School: UTM
• Department: Environment
• Course: ENV100Y5
• Professor: Monika Havelka

Document Summary

Hydropower, nuclear and biomass are conventional energy alternatives. Nuclear and hydro amount for 1/6 of the worlds electricity generation. Uses kinetic energy of moving water to turn turbines and generate electricity. 2 approaches: dams store water in reservoirs, run of river generates energy without greatly disrupting the flow of river water. Is clean and renewable, doesn"t emit carbon dioxide. Negative impacts: destroy habitats, disrupts natural cycles, causes thermal pollution (eliminate fish pop, block passage of fish. Fission releases nuclear energy: nuclear energy the energy holds together protons and neutrons within the nucleus of an atom, nuclear fission splitting apart of atomic nuclei, nuclear power comes from processed and enriched uranium. Nuclear reactor device in a nuclear power plant, in which nuclear chain reactions are initiated. Nuclear fuel cycle production of fuel from naturally occurring uranium, mined from underground deposits. Pros: nuclear power delivers energy more clearly than fossil fuels, clean. Doesn"t emit 600 million metric tons of carbon each year.