2019-06-29 _F2A9111aaa
Sam Carana:
“NORTH ATLANTIC HEATING UP
Sea surface temperature off the east coast of North America were as much as 13.8°C or 24.8°F higher than 1981-2011 on March 15, 2023.
North Atlantic sea surface temperatures are at their lowest around this time of year, in line with changes in the seasons. Last year, North Atlantic sea surface temperatures reached a record high of 24.9°C in early September.
This spells bad news for Arctic sea ice, which typically reaches its lowest extent in September.
From the post 'Sea surface temperature at record high', at:”
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Kim Dotcom:
“The International Criminal Court that we don’t recognize has issued an arrest warrant against Putin for evacuating children from a Warzone that is getting shelled with our weapons and we are the ones who killed over 20 million people in 37 victim nations since WW2”
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Scott Duncan:
“February 2023 was the 4th warmest February on record for the global average temperature.
The warm anomalies were very striking across eastern half of North America, across large parts of Europe, Russia and into Asia.”
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Sam Carana:
“CHANGE AWAY FROM LA NINA
We're changing away from La Niña, toward El Niño.
Moving from the bottom of a La Niña to the peak of a strong El Niño could make a difference of more than half a degree Celsius.
From the post 'Sea surface temperature at record high', at:”
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Caitlin Johnstone:
“A lot of energy has gone into dehumanizing Chinese people in the west over the years, but please rest assured, you have far more in common with the ordinary people of China than you have with the western pundits and politicians who are beating the drums of war against them.
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“TWO TIPPING POINTS THREATEN TO GET CROSSED
Loss of the latent heat buffer is a tipping point that is linked to the subsequent destabilization of methane hydrates. So, there are two tipping points that are linked, and the latent heat tipping point gets crossed before the seafloor methane tipping point gets reached.
The latent heat tipping point is the point where sea ice loss is such that further incoming ocean heat that previously was consumed as Arctic sea ice melted, instead gets absorbed by the Arctic Ocean. This tipping point is estimated to correspond with a Northern Hemisphere ocean temperature anomaly of 1°C above the 20th century average.
The second tipping point occurs as more heat reaches the seafloor where it destabilizes hydrates contained in sediments at the seafloor. This tipping point comes with multiple self-reinforcing feedback loops such as explosive growth in methane volume setting off further destabilization. This tipping point will occur later, so it corresponds with a higher Northern Hemisphere ocean temperature anomaly.
Once this Latent Heat Tipping Point is crossed and as the temperature of the oceans keeps rising, more heat will reach sediments that are located at the seafloor of the Arctic Ocean and that contain vast amounts of methane.
The danger is that further heat will destabilize hydrates in these sediments, leading to explosive eruptions of methane, as its volume increases 160 to 180-fold when leaving the hydrates, and resulting in huge eruptions of methane both from the destabilizing hydrates and from methane that is present in the form of free gas underneath the hydrates.
The methane hydrates tipping point is estimated to get crossed as Northern Hemisphere ocean temperature anomaly goes beyond 1.35°C above the 20th century average.
Image caption:
Northern Hemisphere Ocean Temperature anomalies vs 1901-2000. The pink trend, based on 1850-2022 data, indicates that the Latent Heat Tipping Point was crossed in early 2022, while the red trend, which is based on 2007-2022 data and better reflects variables such as El Niño, indicates that the Latent Heat Tipping Point and the Seafloor Methane Tipping Point could both be crossed in 2024.
From 'Latent heat', at:
Also featuring at 'Sea surface temperature at record high, at:
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