“The US Must Seek a Negotiated End to the War”
Talkingpoints:
“I agree with 90% of John Judis' comments ... EXCEPT ... "So arm Ukraine to the teeth"... which emboldens Zelenskyy and his right-wing thugs and requires Russia to consider using nuclear weapons. I am not willing to risk nuclear war over Ukraine's corrupt government.
Oh, and somebody should put a cork in the Secretary of Defense Lloyd Austin's mouth before he lights up a nuclear war with Russia.”
Polyphemus moth (Antheraea polyphemus)
Ice Age National Scientific Reserve Unit, Wisconsin, USA
2018 6/23 _F2A9653aaa
Zack Labe.
Monthly growth rate of methane (CH⁴) is currently at record high levels (light blue line)...
+ Visualization by http://columbia.edu/~mhs119/GHGs/
Spilling out and unstoppable.
*
Do NOT EVER question why the US Dollar is getting downgraded in international circles:
Richard Dawkins:
“When math books are deemed more harmful than the bible it simply does not equate.”
*
“Teaching kids about frogs isn’t grooming them to become amphibians.
Reading a book about Eistein won’t make your kid smarter.
Acknowledging that some kids have 2 dads isn’t “trying to make them gay”.
It’s helping them learn about the world around them.
*
“World spends $1.8tn a year on subsidies that harm environment, study finds”
*
I thought the benchmark for our decay was 2100?:
“1.5C is unavoidable around 2030, All scenarios reach 1.5C”
Peter Carter:
“1.5°C: 2030 The globally disastrous 1.5C surface heating is absolutely unavoidable and will hit the world around 2030
(IPCC AR6). #climate Demand the end of fossil fuel subsidies. Do it for the children you love in your life. It's never too late to act.”
*
Sam Carana:
“CARBON DIOXIDE CROSSES 422 PPM
Carbon dioxide (CO₂) reached an average daily concentration of 422.06 ppm on April 26, 2022, at Mauna Loa, Hawaii.
Furthermore, very high methane (CH₄) levels were recorded recently at Mauna Loa, Hawaii, with surface flask readings appearing to be as high as 1955 ppb.
This daily average CO₂ concentration of 422.06 ppm together with a methane level of 1955 ppb (which at a Global Warming Potential (GWP) of 200 corresponds with 391 ppm CO₂e), adds up to a joint CO₂e of 813.06 ppm, i.e. less than 387 ppm away from the clouds tipping point that on its own could raise the global temperature by 8°C.
Such a 387 ppm CO₂e could be added almost immediately by a burst of seafloor methane less than the size of the methane that is currently in the atmosphere (about 5 Gt). There is plenty of potential for such an abrupt release, given the rising ocean heat and the vast amounts of methane present in vulnerable sediments at the seafloor of the Arctic Ocean.
The 1200 ppm CO₂e clouds tipping point could be crossed even without such an abrupt methane release. Carbon dioxide and methane levels are rising rapidly. The combination image illustrates how, by the year 2029, carbon dioxide could reach 450 ppm and methane could reach 3840 ppb, which would yield a joint CO₂e of 1218 ppm and thus raise the global temperature by 8°C due to the clouds feedback alone, in addition to the rise caused by nitrous oxide and the many further forcers.
Another analysis, based on NOAA 2009-2021 annual Mauna Loa carbon dioxide and global methane data, shows how carbon dioxide and methane (at a 1-year GWP of 200) could reach a joint CO₂e of 1300 ppm at the end of 2029.
This isn't even the worst-case scenario. The image from another analysis shows how carbon dioxide could cross 700 ppm in 2029, while methane could cross 800 ppm CO₂e (using a 1-year GWP of 200) in 2029. Together, that would yield 1500 ppm CO₂e.
Such high carbon dioxide concentrations could occur due to forest fires causing soils to burn (especially peat soils).
The IPCC does contemplate high carbon dioxide scenarios (see image right), but as discussed in an earlier post, does not mention the clouds tipping point.
High carbon dioxide scenarios typically stop at the year 2100 and rarely reach concentrations higher than 1200 ppm.
In the image from a 2020 analysis by Malte Meinshausen et al., the SSP5-8.5 scenario is extended to the year 2300 and a carbon dioxide concentration of well over 2100 ppm is reached around 2240.
In conclusion, there is plenty of scientific consideration of the potential for high concentrations of carbon dioxide and methane to eventuate, but it is typically ignored or waved away as too distant in the future to worry about.
In other words, what's lacking is analysis of abrupt catastrophic climate change.
It therefore makes sense to expand risk assessment beyond its typical definition as the product of the severity of impact and probability, by adding a third dimension: timescale.
From the post 'Carbon dioxide crosses 422 ppm', at:”
*
It is actually a criminal offense to lie about severe weather in America (remember Trump and his marker on the map?!)
CRIMINAL LYING BY THE IPCC
“IPCC Report: Stop Emissions and All Warming stops in 3-4 years WTAF?”
THE IPCC REPORTS WERE REWRITTEN BY AMERICAN POLITICIANS
*
“There’s No Scenario in Which 2050 Is ‘Normal’
The two paths to avoid the worst of climate change would still dramatically change the world as we know it.”
*
Seize their assets:
“Global Megabanks Are Tanking – The Same Ones the Fed Bailed Out in 2019”
*
“India is smothered by an early and extreme heat wave
The heat wave began in March and is affecting the entire North, which did not have a spring. May promises to be even more challenging, with sweltering temperatures and increased air pollution.”
*
“Rising authoritarianism and worsening climate change share a fossil-fueled secret”
2018 6/23 _F2A9653aaa
Comentários