By Tina Casey •
August 27, 2009
More sulfur dioxide and other acid gasses could be scrubbed from power plant emissions with a new technology developed by the Department of Energy’s Pacific Northwest National Laboratory. The new method, Reversible Acid Gas Capture, is a sustainable twofer: it doubles the amount of pollutants currently captured by the leading water-based scrubber, and it is far more energy-efficient. David Heldebrant, the scientist who headed the PNNL research team, points out that the technology easily lends itself to a retrofit for existing power plants. That’s good news for reducing pollution from coal-fired power plants, but it would be a mistake to call it a win for “clean coal.”
By Nick Chambers •
July 8, 2009
Researchers writing in the journal Environmental Science and Technology have concluded that unless new low-sulfur standards are adopted for the ubiquitous marine fuels used worldwide to get that Barbie from China to your doorstep, 40,000 needless premature human deaths may occur each year due to the harmful emissions caused by high sulfur fuels.
Researchers in have discovered ancient, extremophile life forms that survive with neither light nor oxygen underground in Antarctica.
From the surface, the McMurdo Dry Valleys of Eastern Antarctica appears to be one of the most desolate places on Earth. And indeed it is. Apart from a few glaciers, the land is ice-free. No animals live here, and what few plants are able to are simple planktonic forms. But recently, a team of researchers have discovered evidence of a thriving community of extremophile microbes thriving several hundred feet below the barren surface.
