Polissar

Paleoclimatologist, Geologist, Geochemist

[Polissar @ppolissar]

@kh_freeman Yay! So happy to see Ann Pearson elected.

[Summer Praetorius @S_Praetorius]

Honored to be among this list of great writers and essays. Thanks to the editors @Longreads for the lovely words ❤️

[Dr (of rocks) Marcus Badger @climate_badger]

A huge amount of effort went into this paper by the community and by a dedicated group of lead authors, I played a teeny tiny part in it, but delighted to see it published https://t.co/DcFAhRqTxK

[LDEO @LamontEarth]

Massive new review of ancient atmospheric CO2 levels and corresponding temperatures by a consortium of 80+ researchers coordinated by @columbiaclimate @LamontEarth geochemist Bärbel Hönisch lays out daunting picture of where Earth's climate may be headed. https://t.co/KQ75NKRNbo

[Hanno Kinkel @hannokinkel]

"In summary, the Cenozoic compilation confirms a strong link between CO2 and GMST across timescales from 500 kyr to tens of millions of years,..." https://t.co/SRF2Rp1Mx9

[Polissar @ppolissar]

@bumbanian Wonderful synopsis and explanation @bumbanian! Lots of interesting details in the paper, definitely worth a read.

[James Rae @mudwaterclimate]

Just out, a 66 million year history of atmospheric CO2. Key take away: CO2 hasn't been at today's levels for at least 3 million years. These high CO2 worlds in the geological past had less ice and *much* higher sea levels 📈🌊 #COP28 https://t.co/BYPWWAuoAR

[Seismica @WeAreSeismica]

Seismica by the numbers! 💯

We’ve completed two issues, the current third issue has several articles available, and our special issue on the is also in progress. Check them all out here:

https://t.co/GBg0meXnxA

[Advances in Geochemistry and Cosmochemistry @WeAreAGCjournal]

Great news: We officially have a publisher!

@CUOpenResearch has just accepted our proposal. We're very much looking forward to working with them to further Diamond Open Access in Geochemistry/Cosmochemistry.

Also, keep voting for the logo! https://t.co/Wd5ojZL8Dt

[Polissar @ppolissar]

@moraymo Loved this book and the thought-provoking ideas in it!

[Polissar @ppolissar]

@KeepItRheol @NatalyaGomezEPS It doesn’t roll off the tongue, but frolleague seems to fit the description. (Also congrats @NatalyaGomezEPS !)

https://t.co/GalTAW5yQc

[Polissar @ppolissar]

@yarrowaxford Woohoo, congratulations!

[Polissar @ppolissar]

@not_rollergirl Ya don’t know ‘til you know.

[Polissar @ppolissar]

@chrisjunium I worry about that here in CA. Winter might be better a season to do your PAH extractions…

[Polissar @ppolissar]

Huge shout out to the journal Seismica @WeAreSeismica, a new community-driven diamond open-access journal. That diamond 💎 means it is free to read (without subscription), and there are no article processing fees for authors.

[Polissar @ppolissar]

Excited to share a new paper by @gcoffey_ that compiles estimates of friction heating from earthquakes across many faults to show how the energy budget of large and small earthquakes are different. Published in all OA and no-pub-fee @WeAreSeismica: https://t.co/9xOKIFeh8E

[Polissar @ppolissar]

In small earthquakes (<1-10 m of slip), the earthquake energy budget is dominated by frictional heating, while in large earthquakes (>1-10 m of slip) energy is more equally split between frictional heating, radiating seismic waves, and damage (fractures).