EESA01H3 Chapter : chapter notes
Document Summary
81% of world"s energy comes from oil, coal, and natural gas. Conventional alternatives to fossil fuels less environmental impact. Fuel and biomass = 10. 0% of world"s energy; nuclear power = 6. 3%; hydropower = 2. 2% Nuclear & hydropower each accounts for 1/6 of world"s electricity generation. Hydropower: uses the kinetic energy of moving water to turn turbines and generate electricity. Storage: keeping immense amounts of water stored behind the dam. 2. 2% of world"s energy supply, 16. 0% of the world"s electricity production. Run-of-river: generates electricity without disrupting the flow of river water. Renewable as long as precipitation falls from the sky and fills rivers/reservoirs. Cleanliness no carbon compounds are burned in the production of hydropower no co2 or other pollutants are emitted into the atmosphere. Fossil fuels are used in constructing and maintaining dams. thermal shocks + habitat alteration = diminished or eliminated native fish populations.