Deep sea temperatures over the past 65 million years were much warmer than previously thought! This is important - with potential implications for our understanding of Earth System Sensitivity. Led by Nele Meckler Bjerknessenteret, happy to be part of the team!

This article on unknowability in climate models explains that the main sources of uncertainty are 1 chaos in the climate system 2 structural uncertainty in the models and 3 human behaviour. But most importantly unknown unknowns as we shift to never-before seen climate states.

This was one of the questions I wish I had asked the palaeoclimate community after the recap of the science in the IPCC presented by Dan Lunt at the #ICP14 What are your thoughts?

I'm very proud to share our latest paper AGU (American Geophysical Union) Geophysical Research Letters in which we test the #clumped #isotope temperature-relationship on aragonites using #mollusk shells grown @NIOZnieuws Martin Ziegler Ilja J. Kocken JingjingGuo Geosciences UU Vrije Universiteit Amsterdam (inactief) agupubs.onlinelibrary.wiley.com/doi/abs/10.102…

This in no way applies to me, nor has it in the past. Ahem…

‘You have inspired me to take non-violent direct action with Extinction Rebellion,’ said rebel @csschilder to George Monbiot. ‘Can you help me inspire other people to join us?’ His answer was definitely inspiring! So don't hesitate. The time for action is NOW.🔥

Migrating to #Mastodon has been very nice so far! @[email protected]. If you're in #earthsciences You can add yourself to all-geo.org/mastodon-earth… to opt-in to finding colleagues :). Oh and since there is no algorithmic sorting, follow relevant hashtags directly!

🚨Just in time for your light christmas reading list: our OA paper in Communications Earth & Environment nature.com/articles/s4324… In collaboration with Isabel Sauermilch, Adam Aleksinski, @climatedynamics, @FP_GDGT, @francisangi, @peterbijlWilkes, OceaNice, Geosciences UU. 🧵

Very interesting talk by Ilja J. Kocken on how useful #palaeoceanography is in constraining key #climate metrics used by IPCC 🐚📈🌡️

The geologic history of the position of the Southern Ocean subtropical front and what that has to do with the shape of the Antarctic ice sheet: joint Nature Communications paper Earth Sciences - Utrecht University Institute for Marine and Atmospheric research Nioz At Sea ow.ly/L3O750Q8Og7 @peterbijlWilkes Mei Nelissen Frida Snilstveit Hoem @AppySluijs

One of the last chapters of my PhD thesis has finally been published! Eocene–Oligocene temperature estimates from the lower mixed-layer and thermocline show cooling and hint at increased stratification and AMOC onset: doi.org/10.1029/2023PA… Martin Ziegler Earth Sciences - Utrecht University