Interesting Economist article on peridotite, which has a voracious appetite for carbon. Two Columbia geologists have been studying peridotite in Oman and the upshot is:
"The team has shown that the Omani peridotite absorbs tens of thousands of tonnes of carbon dioxide a year, far more than anyone had thought. By drilling and fracturing the rock they believe they can start a process to increase the absorption rate by 100,000 times or more. They estimate this would allow the Omani outcrop, which extends down some 5km, alone to absorb some 4 billion tonnes of carbon dioxide a year, which is a substantial part of the annual 30 billion or so tonnes of the gas that humans send into the atmosphere, mostly by burning fossil fuels."
Saturday, November 15, 2008
Posted by John at 11/15/2008 12:08:00 PM