I worked with a great team of collaborators to produce a uniquely long #paleoclimate record from #caves in northern #utah. We dated stalagmites to show that mountain #permafrost repeatedly expanded during glacial periods and disappeared during interglacials in sync with orbital climate cycles over the past ~600,000 years. These results provide rare long-term constraints on alpine permafrost sensitivity and help place modern permafost thaw into a deeper climatic context. The paper was published in Quaternary Research; if you do not have access and wish to get a copy, feel free to send me a private request.

https://doi.org/10.1017/qua.2026.10076

#geology #climate #cave #caves #mountain #mountains #quaternary

#makeShitMonday, #meshtastic edition, in which we made #mesh #radio connections... in a #cave!!

@mbroome and I just completed a weeklong vertical cave rescue certification course, complete with a full-day simulated rescue scenario at the end. Standard comms for cave rescue is over wired field phones - but for this one, we had mesh radios all the way down to one of the main caverns that needed vertical rigging for the rescue.

I was Entrance Control (tracks who goes in / out of the cave, relays comms from the cave to Incident Command on the surface) and had my new MeshPocket on their dark mesh, based on [Vangelis]( https://github.com/semper-ad-fundum/vangelis). @mbroome was on comms *in* the cave - and also had my little Muzi R1 mesh radio.

It's definitely not ready to be primary comms - the radios struggle with low-airspace passages and corkscrews - but it's pretty darn close! Need to add some wired bridges like [the Flamingo project](https://github.com/rbreesems/flamingo) - that project has a really [neat video](https://youtu.be/R3LtLcnrpAk) from a test in Tumbling Rock...

Mesh radio is definitely a new paradigm for cave rescue, and I think doing it in parallel with existing field-phone tech will need separate operators. I had a pretty comfy setup with a field phone to the cave in one ear and an FRS radio to Incident Command on the surface in the other - which was fine, they're both auditory processing and push-to-talk so the only challenge was making sure I pushed the right button each time. 😁 Taking notes was additional cognitive load, and adding mesh comms (visual processing / type to talk) pushed it well beyond anything I could have tracked in a real emergency!

Which is great to know in advance, and I really do think that when this tech matures, it will make a solid replacement for the field phones and comms wire that's been used for the past several decades...

@cannibal

Wir nehmen Euch mit auf eine Führung durch unsere Cave!
Die Cave ist unser Raum für Virtual Reality. Sie ist rundum mit Projektionsflächen ausgestattet. Hier könnt Ihr Wissenschaft hautnah erleben🔬

https://visitkoeln.regiondopartner.com/entdecke-koeln-tag?re-product-id=331511
#cave #itcc #uniköln #EntdeckeKölnTag

I discovered three new geckos in Cambodia – and that’s not all

The vast majority of karsts are not protected, and the demand for cement is huge. This is not specific to Cambodia – it’s a global problem and the threat is imminent.

#nature #biodiversity #cement #karst #cave #guano #bats #gecko #cambodia #evolution

Very interesting article about how #species are discovered , classified and documented.

https://www.theguardian.com/environment/2026/mar/22/i-discovered-three-new-geckos-in-cambodia-limestone-caves-and-thats-not-all-we-found-aoe

Poly HP - GraveWalker #Creepy #Cute #Animation #Halloween #Dungeon #Cave #Dark #Undead #Grave #Monster #Enemy #Minion #Demon #Zombie #Skeleton #AssetStore

https://u3dn.com/packages/poly-hp-gravewalker-308142