Science/Technology
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7320 |
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Date: August 18, 2023 at 19:40:55
From: Mitra, [DNS_Address]
Subject: methane-fueled 'termination' significant enough to end an ice age |
URL: https://www.space.com/climate-change-termination-event-end-ice-age |
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"A dramatic spike in atmospheric methane over the past 16 years may be a sign that Earth's climate could flip within decades, scientists have warned."
Ice age terminations typically occur in three phases, which are recorded in ice cores going back 800,000 years. The initial phase is characterized by a gradual rise in methane and CO2, leading to global warming over a few thousand years. This is followed by a sharp increase in temperatures fueled by a burst of methane, leveling off in a third phase lasting several thousand years.
..."It looks as if there's a big, new methane source turning on," Nisbet said.
A flurry of studies since 2019 has linked the strange spike to soaring emissions from tropical wetlands, predominantly in Africa. A "significant change" in tropical weather ascribed to human-caused climate change has led wetlands to get bigger and more plants to grow there, thus leading to more decomposition — a process that produces methane, Nisbet said.
In the new study, published July 14 in the journal Global Biogeochemical Cycles, Nisbet and colleagues compared current trends in atmospheric methane to the abrupt phase of warming during ice age terminations.
"The closest analogy we have to what we think is happening today is these terminations," Nisbet said.
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[7321] [7322] [7323] |
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7321 |
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Date: August 18, 2023 at 20:26:30
From: Mitra, [DNS_Address]
Subject: Interesting... WtFrac |
URL: https://www.nrdc.org/stories/fracking-101#what-is |
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The year 2006 was mentioned... That was about the time an increase of fracking took off...
Interesting the attempt to focus the blame of the rise in methane on African vegetation. Keep your eye on this hand over here...
"Sand is the fracking industry’s favored proppant, with high-purity quartz—known as “frac sand”—prized the most for its round shape, uniform size, and crush resistance. A single well operation can truck in thousands of tons of frac sand. The United States is the single largest producer of frac sand in the world, with almost 70 percent of 2014 domestic production coming from the Great Lakes Region, particularly from Wisconsin and Minnesota, which both saw a doubling of sand mines between 2005 and 2015."
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Responses:
[7322] [7323] |
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7322 |
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Date: August 18, 2023 at 20:39:20
From: Mitra, [DNS_Address]
Subject: Re: Interesting... WtFrac |
URL: https://www.texastribune.org/2023/07/19/texas-pipeline-heat-natural-gas-emissions-pollution-permian-basin/ |
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"gIt is sadly ironic that the fossil fuel industry is seeing its equipment threatened by a situation it helped create,h Adrian Shelley, Texas director of Public Citizen, said in the report.
The heat-related releases were equivalent to the greenhouse gas emissions of more than 5,000 cars in one year. But they are a tiny fraction of the approximately 30 million tons of annual U.S. methane emissions estimated in recent years. Oil and gas systems are the largest single source of methane emissions, according to the EPA."
Thought The Boppers might find this curious, as well as the new projections in the first post above. Anyway... back to silence.
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Responses:
[7323] |
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7323 |
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Date: August 18, 2023 at 22:21:17
From: ryan, [DNS_Address]
Subject: Re: Interesting... WtFrac |
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thanks for this..nice to see you...
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