bbrancheau

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ch 20 notes

March 28th, 2006 · No Comments
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-greater reliacne on renewable resources and effeicnt use can reduce our depencenc on fossil fuels

- use less, conserve through greater effienceys lighting, space, water heating, etc.

-traporstion biggest energy use. reduce CO3 save oil. hybrid high effiecy rates low emmsions

- solar energy, active collects and stores, photovolatics cells convert sunlight to electricy
preices come down dramactically, rooftop arry proveds power you need w.o moving parts

- fuelcells, their only watse is clean water. number of different designs

- biomass used for fuel or heat and light, led to deforestation and air pollution, supples becoming scarec.

-hrydopower once produced most electriicty in the world now has been replaced w/ ff.
recourses for it remian untapped, sever social and env. probs

-wind power fast growing energy source high pot. for clean power. supply all the electricy we need and free us from econmotc socual and env probs

-none of these renewable resources are likely to replace fossil fuels in near future, combination could make a difference in energy use.

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