Oh, no, not another greenhouse gas!

Thirteen years ago the Kyoto Protocol attempted to limit emissions of six types of greenhouse gases; these are carbon dioxide, methane, nitrous oxide, hydrofluorocarbons, perfluorocarbons and sulphur hexafluoride. You can see the effect of these if you put “Global Warming Potential Index” into the search facility that good folk at WordPress have kindly provided near the top of this web page.

There are other greenhouse gases, which have only fairly recently been found to have heat trapping qualities. These are not covered by any international treaty. The most damaging of the greenhouse gases unaffected by Kyoto is nitrogen trifluoride (NF3), which looks set to become a rapidly growing greenhouse gas problem. Continue reading