Mongabay: Scientists from MIT and Scipps Institution of Oceanography have announced the discovery of an exceptionally potent new greenhouse gas. Sulfuryl fluoride is an up-and-coming fumigant against insects, but scientists have discovered that if the new gas becomes widely used it could contribute significantly to climate change. Sulfuryl fluoride was introduced as a replacement for methyl bromide. An ozone-depleting gas, methyl bromide, is currently being phased out under the international …