Reuters: German sales of sulphur hexafluoride, the most potent of all greenhouse gases, rose 13 percent last year compared with 2013 levels, according to data from the federal statistics office published on Wednesday.
Sales of sulphur hexafluoride increased by 104 tonnes to 916 tonnes in total last year, but were still 16 percent lower than 2012, the statistics office said.
The most potent of all greenhouse gases, sulphur hexafluoride has a global warming effect some 22,800 times that of carbon dioxide...