Interesting, enlightening collection of expert comments on what the two new papers regarding CO2 in ancient blue ice actually mean.

https://www.sciencemediacentre.org/expert-reaction-to-two-papers-on-links-between-ancient-climate-shifts-and-ocean-temperatures-greenhouse-gases-as-published-in-nature/

Gavin Schmidt also wrote a blogpost about them https://www.realclimate.org/index.php/archives/2026/03/the-puzzling-pleistocene/
"At face value, these results seem to suggest that CO2 declines were not the dominant/only cause of the cooling at the onset of the ice ages, despite expectations. Some of the usual suspects are certainly going to claim (fallaciously) that this means that CO2 can’t be the cause of anything. This is obviously a stupid argument so feel free to judge anyone that makes it.'

Not mentioned but I will point it out to him on Bluesky: the hydrogen cloud our solar system traversed (or vice versa) from precisely 2.7ma to 750ka. You might recall Opher et al? https://www.nature.com/articles/s41550-024-02279-8
The cloud dented the heliosphere and left Earth wide open to cosmic rays.

My confirmed bias takeaway from the blue ice papers: how vastly different ocean currents and other vastly different properties drove °C evolution on that planet that was Earth 3mio years ago in the Pliocene, renders that ancient Earth incomparable to what we're unleashing thanks to #ExxonKnew

#ClimateChange #OceanHeat #Ocean #GlobalMean #Pliocene #Blueice

#FYI #NASA #CERES #Geodetic #oceanHeat

via #‪LeonSimons‬ ‪@leonsimons.bsky.social‬

To cite Ronny Chieng: It goes up! Even if you flip the chart upside down, it still goes UP!

"the near-term forcing increase might be much higher than models suggest"

https://bsky.app/profile/leonsimons.bsky.social/post/3lxyrfucmhk2y

#climate #ClimateScience #climatechange #ClimateEmergency #ClimateDisruption #ExtremeWeather #polycrisis #EcosystemCollapse #systemcollapse #ecocide #fossilfuels #Co2Emissions #methane #GreenhouseGases #KeepitInTheGround

CNN: Over a year of astonishing ocean heat has given way to the largest coral bleaching on record…

The mass bleaching of coral reefs around the world since February 2023 is now the most extensive on record... CNN #coralbleaching #oceanheat #ocean #temperatures #environment #climatechange #globalwarming

https://formuchdeliberation.wordpress.com/2024/10/19/cnn-over-a-year-of-astonishing-ocean-heat-has-given-way-to-the-largest-coral-bleaching-on-record/

This is very problematic. Alarming data from 1979 to 2024 shows sea surface temperatures reaching historic highs. Recent years have shattered all previous records, indicating a dire escalation in our climate crisis. This threatens vital marine ecosystems and our global climate stability. We need leadership in action now.

#ClimateCrisis #OceanHeat

https://www.bbc.co.uk/news/science-environment-68921215