methane

In addition, as it rots, the wasted food emits in the U.S. alone over 4 million metric tons of methane – a heat-trapping greenhouse gas.

Hydrothermal vents and methane seeps typically appear in separate locations on the seafloor.

California is considering adopting new rules to better identify and more quickly to respond to dangerous methane leaks and underground fires at landfills statewide.

And, in the San Francisco Bay Area, burrowing rodents may be digging into entombed trash at a landfill-turned-park, unloosing explosive levels of methane.

Food and other organic waste sent to landfills is a significant source of methane, a potent greenhouse gas.