"Arctic Meltdown: We're Already Feeling the Consequences of Thawing Permafrost"
"Once the Earth warms to a critical temperature, permafrost in Siberia will melt, releasing massive amounts of carbon"
sciencenetlinks
Siberia's Pleistocene Park: Bringing back pieces of the Ice Age to combat climate change
With Arctic permafrost thawing too quickly, scientists in Siberia are considering drastic measures
(video)
cbsnews
.
Melting permafrost in the Arctic is unearthing diseases
and destroying landscapes.
"Homes are sinking and trees are tipping over in Alaska. Mammoth bones are surfacing in the Russian Far East — so many that people have begun selling the tusks as a substitute for elephant ivory. And in 2016, more than 70 people in western Siberia were hospitalized for exposure to anthrax, likely spread from a decades-old reindeer carcass that thawed from frozen ground.
In 2016, meltwater seeped into the entrance tunnel of the Global Seed Vault, a subterranean facility in Arctic Norway nicknamed the Doomsday Vault. There, millions of collected seeds are supposed to stay frozen indefinitely, with little upkeep, a safeguard to restart agriculture should the world’s crops be lost in a large-scale disaster. No seeds were harmed — the water refroze long before reaching the vault — but the breach made the world wonder: Will the Doomsday Vault last until doomsday?
The events are connected, caused by the same phenomenon: They occurred in regions covered in permafrost, ground that should stay frozen throughout the year but is now thawing because of global warming.
Permafrost covers about 25 percent of all ice-free land in the Northern Hemisphere. For millennia, much of this ground has been a cemented mass of soil, rock and ice, along with bits of organisms preserved from decay in a deep freeze. Read More":discovermagazine
"Another major source of methane is gas hydrates buried in the continental shelves of the world ocean":
www.usgs.gov/…
The Environmental Defense Fund-
good explainer on methane component in climate change:
www.edf.org/...
(Thanks cutbertburby)
Melting permafrost in Arctic will have $70tn climate impact –
Study shows how destabilised natural systems will worsen man-made problemwww.theguardian
Permafrost:
is soil, rock or sediment that is frozen for more than two consecutive years. In areas not overlain by ice, it exists beneath a layer of soil, rock or sediment, which freezes and thaws annually and is called the "active layer".
- The thawing of permafrost has implications for the global climate.[5] A global temperature rise of 1.5 °C (2.7 °F) above current levels would be enough to start the thawing of permafrost in Siberia, according to one group of scientists.
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- Historical changes: At the Last Glacial Maximum, continuous permafrost covered a much greater area than it does today, covering all of ice-free Europe south to about Szeged (southeastern Hungary) and the Sea of Azov (then dry land)[43] and East Asia south to present-day Changchun and Abashiri.[44] In North America, only an extremely narrow belt of permafrost existed south of the ice sheet at about the latitude of New Jersey through southern Iowa and northern Missouri, but permafrost was more extensive in the drier western regions where it extended to the southern border of Idaho and Oregon.[45]In the southern hemisphere, there is some evidence for former permafrost from this period in central Otago and Argentine Patagonia, but was probably discontinuous, and is related to the tundra. Alpine permafrost also occurred in the Drakensbergduring glacial maxima above about 3,000 metres (9,840 ft).en.wikipedia.org/...
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Links:
We are not yet doomed:
the carbon cutters determined to save the world
An orchestra, a village, an entire country: the movement to rein in greenhouse gas emissions is growing
by Guardian correspondents
theguardian.com
"Extinction Rebellion reports hundreds
of people signing up"
"Extinction Rebellion activists reported an influx of supporters on Friday, as the Easter holiday, balmy weather and promises of support from school strike leader Greta Thunberg injected new momentum into the weeklong climate protest.
Despite more than 100 arrests on Friday, taking the total to 682 by early evening, the demonstration which has blocked four major Londonlandmarks looked set to continue beyond the weekend, with organisers preparing to extend their disruption on Monday to “picnics on the motorway.”
Thunberg, the 16-year-old Swedish activist and founder of the school strikes for climate movement, will visit parliament on Monday and Tuesday and told the Guardian she was also keen to join the campaigners on the streets"www.theguardian.com/...
EXTINCTION REBELLION:
INTERNATIONAL SIGNUP
WE DECLARE:
INTERNATIONAL NON-VIOLENT REBELLION AGAINST THE WORLD’S GOVERNMENTS FOR CRIMINAL INACTION ON THE ECOLOGICAL CRISIS
https://xrebellion.org
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Inslee Climate First on DK
Mission Statement:
"Inspired by Governor Jay Inslee who prioritizes defeating climate change first and foremost, this group embraces his positive message that the same Americans who put humankind on the moon can defeat climate change and thrive while doing it. As the first generation to feel the sting of climate change, we accept the mantle of being the last generation who can defeat it. "
dailykos.com
More about Governor Jay Inslee:
Jay Inslee will now be at the debates June 26th
The petition to Democrats
to debate Climate Change:
jayinslee.com