Environment News Service: Sulfuryl fluoride, a gas used for insect control, has the potential to contribute to future global warming at more than 4,800 times the potency of the better known greenhouse gas carbon dioxide, an international team of researchers said today. The gas is used for soil fumigation, termite treatment and post-harvest insect control on fruits, nuts, and grains. But because sulfuryl fluoride production has not yet reached high levels there is still time to nip this potential contributor in …