Although the hole is yet to be confirmed, scientists worry that the release of trapped methane could threaten local industry and communities. (nature.com)
Water molecules trap methane gas in an icy cage under high pressure and cold temperatures. (cage.uit.no)
So far the CDM board has approved 493 projects ranging from trapping methane from a dump in Bolivia to a geothermal scheme in Indonesia. (newscientist.com)