Monday, January 08, 2007

New York probes 'gas-like odour'

Morning commuters in Manhattan reported a strong gas-like smell. New York residents contacted the BBC, describing the smell as a mix of natural gas and burnt rubber, or saying it was a strong methane odour.

The stability of the continental shelf along the Hudson Canyon, where methane hydrate deposits exist, is doubtful. Scientists have been concerned that a slumping of shelf along the Hudson Canyon, due to instability of the methane hydrate deposits there would send destructive tidal waves toward the US coastline. The Hudson Canyon also hosts the world's largest municipal sewage dumpsite along the continental rise off the coast of New Jersey that has been used for offshore dumping since the 1950s, Deep Water Dumpsite 106, named so because it lies about 106 miles off

IMO: A lot has been written now about the instability of the Hudson Canyon and the effect may be yet another result of global warming. There could be a substantial dumping of methane from beneath the continental shelf worldwide. There's also more venting around Santa Barbara, for example.

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