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Submission + - Potent Greenhouse Gas Overlooked ( writes: "Nature reports on a potent greenhouse gas that's been overlooked in environmental studies. Nitrogen trifluoride, a gas commonly used in the etching of silicon chips found in plasma displays, has been found to be 12,000-20,000 times more effective than carbon dioxide at retaining heat from solar radiation. Atmospheric levels of this gas have increased twenty-fold in the last three decades. From the article: "Given its strong global-warming potential and estimated atmospheric lifetime of 740 years, this is equivalent to the effect of about 67 million tonnes of carbon dioxide — roughly the total annual CO2 emissions of Finland.""

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