Berkeley CSUA MOTD:Entry 39251
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2024/11/22 [General] UID:1000 Activity:popular
11/22   

2005/8/24-25 [Science/GlobalWarming] UID:39251 Activity:moderate
8/24    Why can't we burn trash to power turbines which give us electricity?
        (Selected trash)
        \_ It's done now.  Google "waste to energy" or "trash to energy".
        \_ Because it doesn't involve invading another country.
        \_ Heard of "biomass"?
           \_ good idea:
                http://www.nrel.gov/clean_energy/bioenergy.html
        \_ I believe in the future we will be mining garbage dumps ... If we
           burn it all up we can't mine it.
           \_ Mining them for what?  Minerals?   We burn it all up, those
             minerals will be in the ash...
              \_ Actually some are already being "mined" for methane.
              \_ Mined for the materials we will have run out of, presumably.
        \_ Pollution?
        \_ Mr. Fusion won't be invented for another 100 years.
2024/11/22 [General] UID:1000 Activity:popular
11/22   

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www.nrel.gov/clean_energy/bioenergy.html
Credit: Warren Gretz About biomass energy We have used biomass energy or bioenergy the energy from organic matter for thousands of years, ever since people started burning wood to cook food or to keep warm. And today, wood is still our largest biomass energ y resource. But many other sources of biomass can now be used, including plants, residues from agriculture or forestry, and the organic componen t of municipal and industrial wastes. Even the fumes from landfills can be used as a biomass energy source. The use of biomass energy has the potential to greatly reduce our greenho use gas emissions. Biomass generates about the same amount of carbon dio xide as fossil fuels, but every time a new plant grows, carbon dioxide i s actually removed from the atmosphere. The net emission of carbon dioxi de will be zero as long as plants continue to be replenished for biomass energy purposes. These energy crops, such as fast-growing trees and gra sses, are called biomass feedstocks. The use of biomass feedstocks can a lso help increase profits for the agricultural industry.