Sentences with phrase «frozen ocean floor»

Human activities account for 60 percent of methane emissions, but other contributors include plumes from frozen ocean floors, microbes, abandoned wells and even beavers of all things.

Not exact matches

Bacteria far, far, far precede humans on Earth; they have survived numerous catastrophes; and they inhabit virtually every location on the Earth, including frozen Antarctica and super-hot thermal vents on the ocean floors.

That may in turn have caused the planet to heat up enough to melt deposits of methane frozen in sediments on the ocean floor (something, incidentally, that could happen again), discharging even more potent greenhouse gases into the atmosphere and further heating the planet in an escalating feedback loop.

Scientists excavating the ocean floor have found huge chunks of frozen methane along Hydrate Ridge, about 60 miles off the coast of Oregon.

Water pressure and thermal shock are intense as oil from the reservoir bubbles up into the well at 140 degrees Fahrenheit, only to hit near - freezing temperatures at the ocean floor, which can cause it to coagulate in the pipes.

Hydrothermal vents are located several miles below the surface, on the ocean floor, where the surrounding water is at or near freezing, it is absolutely dark and the pressure is high.

Several tense scenes underwater: A sunken ship falls to the ocean floor with two men trapped inside; a diver is almost hit by submarine; a man almost drowns to death; a man almost freezes to death underwater; a submarine is entangled with a diver's air cables and almost knocks the diver unconscious.

They were on their way to migrate south, but the rapidly dropping temperatures have frozen the sea all the way to the ocean floor, blocking their only path.

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--- On a lighter note, here is a beautiful and somewhat creepy video of a «brine - icle» transporting very cold brine down from below the sea ice to the ocean floor and freezing everything in its path.

An increased concentration of methane release, Gustafsson suspects, may be coming from collapsing «methane hydrates» — pockets of the gas that were once trapped in frozen water on the ocean floor.

The methane release happens because the gas is freed from melting hydrates — an icy substance found below the ocean floor, containing methane in a cage of frozen water.

What is concerning is the possibility that rapid global warming could occur faster than many people believe is possible, if global warming due to atmospheric carbon dioxide causes the Earth's atmosphere to warm enough to release enormous deposits of frozen methane (CH4) that are stored in the permafrost above the Arctic Circle and in frozen methane ice, known as methane hydrate, underneath the floors of the oceans throughout the world (see: How Methane Gas Releases Due To Global Warming Could Cause Human Extinction).

While part of the tidal energy is dissipated on the coasts, another part turns into the circumpolar current and is ultimitely dissipated on the ocean floor, and that current could be reduced or eliminated if the Strait of Magellan froze deep, reducing the rate of deceleration and allowing the core to catch up a little (in its deceleration).

An increased concentration of methane release, Gustafsson suspects, may be coming from collapsing «methane hydrates» - pockets of the gas that were once trapped in frozen water on the ocean floor.

Slightly warmer ocean water may also release frozen natural gases in the sea floor, all of which act as greenhouse gases in the atmosphere, says Rind.

On continental shelves, methane gas (CH4) is frozen into the ocean floor.