MANCHESTER, England, May 14 (TNSjou) -- The University of Manchester issued the following news release: * * * New research reveals rapid methane release mechanism at the front of retreating ice sheets An international team of scientists has discovered that methane hydrates beneath the northwest Greenland continental shelf became rapidly destabilised by meltwater, releasing large stores of methane during ice-sheet retreat across the continental shelf. The findings, published in Nature Geoscience, suggest that this fast acting mechanism may h more PR