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Northwest Voices

Seattle Times letters to the editor

July 30, 2013 at 6:52 AM

Trapping carbon dioxide in basalt

Pacific Northwest National Laboratory scientists have started pumping carbon dioxide into the ground on mill property, testing whether Washington's porous basalt deposits might be a good storage site for carbon dioxide. This is one possible way to slow global warming by preventing CO2 from power plants from getting into the atmopshere. [Ellen M. Banner, The Seattle Times.]

Pacific Northwest National Laboratory scientists have started pumping carbon dioxide into the ground on mill property, testing whether Washington’s porous basalt deposits might be a good storage site for carbon dioxide. This is one possible way to slow global warming by preventing CO2 from power plants from getting into the atmopshere. [Ellen M. Banner, The Seattle Times.]

Give trees a chance

It will take about two weeks to pump the amount of carbon-dioxide equivalent to three hours of coal-power emission into a basalt formation. [“A fix for global warming under our feet?”, page one, July 27.]

Can anyone tell me how many acres of trees we could plant in that time instead? Trees have the obvious benefits of emitting oxygen, while providing beauty, habitat, biodiversity, shade, and water purification. The carbon dioxide drifts to them without human help.

That would be too complicated, I guess.

Ellen Peterson, Seattle

Comments | Topics: air pollution, basalt, carbon dioxide

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