Stuart Umbo
@drumbo.bsky.social
Clumped loving palaeoclimate enthusiast.
Fantastic first day of the ICDP training course at the KTB Borehole, learning some of the logistics around continental drilling and meeting great minds @icdpdrilling.bsky.social
June 9, 2026 at 5:26 AM
Fantastic first day of the ICDP training course at the KTB Borehole, learning some of the logistics around continental drilling and meeting great minds @icdpdrilling.bsky.social
New study from our fantastic Isoperm team, led by Jade Margerum, summarising decades of monitoring from our Botovskaya cave site in Siberia. @speleoseb.bsky.social @mariabox.bsky.social @olakwiecien3.bsky.social
digitalcommons.usf.edu/ijs/vol54/is...
digitalcommons.usf.edu/ijs/vol54/is...
Response of Botovskaya Cave to local and regional environmental dynamics
Speleothems from caves in near-permafrost regions can provide unique insights into the climatic history of temperature-sensitive environments. These regions are often remote and only seasonally access...
digitalcommons.usf.edu
March 10, 2026 at 9:43 PM
New study from our fantastic Isoperm team, led by Jade Margerum, summarising decades of monitoring from our Botovskaya cave site in Siberia. @speleoseb.bsky.social @mariabox.bsky.social @olakwiecien3.bsky.social
digitalcommons.usf.edu/ijs/vol54/is...
digitalcommons.usf.edu/ijs/vol54/is...
New paper alert! Spelethem drip cups make promising targets for clumped isotope temperature reconstruction. One for the clumpy nerds.
analyticalsciencejournals.onlinelibrary.wiley.com/doi/10.1002/...
analyticalsciencejournals.onlinelibrary.wiley.com/doi/10.1002/...
January 20, 2026 at 1:59 PM
New paper alert! Spelethem drip cups make promising targets for clumped isotope temperature reconstruction. One for the clumpy nerds.
analyticalsciencejournals.onlinelibrary.wiley.com/doi/10.1002/...
analyticalsciencejournals.onlinelibrary.wiley.com/doi/10.1002/...
Afternoon folks. I'm delighted to announce our manuscript "Speleothem evidence for Late Miicene extreme Arctic amplification" was published online today. Happy reading! @speleoseb.bsky.social @thomasopel.bsky.social cp.copernicus.org/articles/21/...
Speleothem evidence for Late Miocene extreme Arctic amplification – an analogue for near-future anthropogenic climate change?
Abstract. The Miocene provides an excellent climatic analogue for near-future runaway anthropogenic warming, with atmospheric CO2 concentrations and global average temperatures similar to those projec...
cp.copernicus.org
September 8, 2025 at 12:50 PM
Afternoon folks. I'm delighted to announce our manuscript "Speleothem evidence for Late Miicene extreme Arctic amplification" was published online today. Happy reading! @speleoseb.bsky.social @thomasopel.bsky.social cp.copernicus.org/articles/21/...
JUST OUT: A new manuscript from our team shows temperate vegetation in modern Arctic Siberia at a time when the globe was 4.5 degrees warmer. www.nature.com/articles/s41...
@speleoseb.bsky.social @thomasopel.bsky.social
@speleoseb.bsky.social @thomasopel.bsky.social
Late Miocene speleothems show significant warming, temperate vegetation, and wildfires in Arctic Siberia
Scientific Reports - Late Miocene speleothems show significant warming, temperate vegetation, and wildfires in Arctic Siberia
www.nature.com
August 5, 2025 at 8:00 AM
JUST OUT: A new manuscript from our team shows temperate vegetation in modern Arctic Siberia at a time when the globe was 4.5 degrees warmer. www.nature.com/articles/s41...
@speleoseb.bsky.social @thomasopel.bsky.social
@speleoseb.bsky.social @thomasopel.bsky.social
Delighted our team have been featured in EOS. Check it out...
A nearly permafrost-free Arctic? New research from northern Siberian caves holds clues. eos.org/articles/cav...
Cave Deposits Reveal a Permafrost-Free Arctic - Eos
Mineral cave deposits from northern Siberia show that the region was permafrost free during the late Miocene period, when Earth was warmer than today.
eos.org
August 5, 2025 at 7:39 AM
Delighted our team have been featured in EOS. Check it out...
Reposted by Stuart Umbo
@awi.de @paleodyn.bsky.social @grosseguido.bsky.social @heikezimm.bsky.social @drumbo.bsky.social @speleoseb.bsky.social
July 9, 2025 at 10:01 AM
Our team, led by Anton Vaks, have just put out this rather lovely manuscript in Nature Comms showing that the northern hemisphere was permafrost free during a period when temperatures were ca. 4.5 degrees warmer - similar to runaway climate change. Have a look! www.nature.com/articles/s41...
Arctic speleothems reveal nearly permafrost-free Northern Hemisphere in the late Miocene - Nature Communications
Speleothem records from caves in Arctic Siberia allow for the reconstruction of multiannual air temperatures during the late Miocene (8.68±0.09 million years ago). These temperatures suggest that Eura...
www.nature.com
July 4, 2025 at 10:35 AM
Our team, led by Anton Vaks, have just put out this rather lovely manuscript in Nature Comms showing that the northern hemisphere was permafrost free during a period when temperatures were ca. 4.5 degrees warmer - similar to runaway climate change. Have a look! www.nature.com/articles/s41...
Hello friends old and new. If you're at EGU this year, drop me a line. Or even better, come and see my talk on a six-million-year speleothem derived clumped isotope temperature record of continental Eurasia.
Mon, 28 Apr | CL 1.2.3 Room 0.31/32 10.05am. It's bright and early so no excuses! #EGU25
Mon, 28 Apr | CL 1.2.3 Room 0.31/32 10.05am. It's bright and early so no excuses! #EGU25
April 25, 2025 at 10:13 AM
Hello friends old and new. If you're at EGU this year, drop me a line. Or even better, come and see my talk on a six-million-year speleothem derived clumped isotope temperature record of continental Eurasia.
Mon, 28 Apr | CL 1.2.3 Room 0.31/32 10.05am. It's bright and early so no excuses! #EGU25
Mon, 28 Apr | CL 1.2.3 Room 0.31/32 10.05am. It's bright and early so no excuses! #EGU25