Energy Wire: PostGlobal on washingtonpost.com - The Diigo Meta page

• 03 Oct 08
  

  ideath

  Seriously, every time i hear them say "clean coal", i want to
  shake them and say YOU GUYS IT DOESN'T EXIST! That goes for you too,
  mr. rock star Democratic candidate. You smile pretty and make the kids
  swoon, but you're talking about mythological critters

  coal energy politics

• 02 Oct 08
  

  elsamary

  coal green tech energy environment politics pollution air

  • There is simply no such thing as clean coal. Prying it loose from the ground is a dirty business and burning it produces a variety of pollutants and greenhouse gases.
  • To some politicians, the phrase "clean coal" may seem like shorthand for technology that would separate carbon dioxide out of the exhaust of a coal-fired plant and bury it in the ground. So far, however, no coal plant like that exists in the United States,
  • I've also heard many utilities, coal companies and politicians use the phrase "clean coal" to describe certain coal plants that convert coal to energy with an efficiency rate of over 40 percent, compared to older plants that function just over 30 percent. These plants, called "supercritical" plants, operate at higher pressures and higher temperatures and burn coal more efficiently, thus requiring less coal to generate the same amount of electricity. But either kind of plant still produces emissions.

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