Tuesday, July 15, 2008

Super potent greenhouse gas used in flat screen TVs poses global warming threat


(Photo of flat screen TVs at Wal-Mart from Flickr and and photographer Adam G)

News Update 2:
A chemical used in making flat screen TVs is 17,000 times as potent a greenhouse gas as CO2. Researchers at the University of California-Irvine are seeking to measure the synthetic chemical, NF3, in the atmosphere, because of its huge potential impact on global warming. The chemical, nitrogen trifluoride, is used in the manufacture of computers and flat screen TVs, despite the knowledge that it could add significantly to global warming. Industry leaders say only about 2% escapes into the atmosphere, but scientists have not yet verified that. NF3 lasts in the atmosphere 550 years, compared with 100 years for CO2 and 12 years for methane. It has not yet been registered as a greenhouse gas and was not included in the Kyoto treaty. The research at Cal-Irvine may well lead to its inclusion in future climate change treaties. This points up the risk that new chemicals can undo much of the good done to curb emissions and they need to be regulated. (Source: Greenwire)

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