Tags: arctic ocean, doomsday, frozen methane, global warming, methane, siberian sea, temperature rising
Doomsday scenario goes something like this: If global temperatures keep rising, some methane hydrates will melt, sending methane gas bubbling up through the ocean and into the atmosphere. Like any good greenhouse gas, the methane will trap heat close to Earth’s surface, causing temperatures to climb even higher. Hotter temperatures will melt more hydrates, and on and on. In other words, methane hydrates could trigger the mother of all feedback loops. The story, says David Archer, a geophysicist at the University of Chicago, “has a great apocalyptic side to it.”
A section of the Arctic Ocean seafloor that holds vast stores of frozen methane is showing signs of instability and widespread venting of the powerful greenhouse gas, according to the findings of an international research team led by University of Alaska Fairbanks scientists Natalia Shakhova and Igor Semiletov.
The research results, published in the March 5 edition of the journal Science, show that the permafrost under the East Siberian Arctic Shelf, long thought to be an impermeable barrier sealing in methane, is perforated and is leaking large amounts of methane into the atmosphere. Release of even a fraction of the methane stored in the shelf could trigger abrupt climate warming.
The current rate of extinction is 100 to 1000 times higher than the average, or background rate, making our current period the 6th major mass extinction in the planet’s history.
Charter boat captain Erik Rue, 42, photographed the animal, which is actually an albino, when he began studying it after the mammal first surfaced in Lake Calcasieu, an inland saltwater estuary, north of the Gulf of Mexico in southwestern USA.
Since 1939, scientists have thought the “barreleye” fish Macropinna microstoma had “tunnel vision” due to eye that were fixed in place. Now though, Monterey Bay Aquarium researchers show that the fish actually has a transparent head and the eyes rotate around inside of it. From the Monterey Bay Aquarium Research Institute
WHITTLESEA, Australia – Suspicions that the worst wildfires ever to strike Australia were deliberately set led police to declare crime scenes Monday in towns incinerated by blazes, while investigators moving into the charred landscape discovered more bodies. The death toll stood at 130.
