Georg Zellmer
@gzellmer.bsky.social
Chair in Petrology, University of Bonn, and Executive Editor, Journal of Petrology. Views are my own.
Given the roughly linear trend in global warming since 1970, what's the chance that we stay below 2 degrees warming at 2050? Pretty slim, it seems to me.
August 29, 2025 at 3:07 PM
Given the roughly linear trend in global warming since 1970, what's the chance that we stay below 2 degrees warming at 2050? Pretty slim, it seems to me.
"Der Grund dafür ist die Verspätung eines vorausfahrenden Zuges" - one might ask why the prior train was delayed. So the better explanation would be that the reason is the utter incompetence of Deutsche Bahn.
August 1, 2025 at 11:15 AM
"Der Grund dafür ist die Verspätung eines vorausfahrenden Zuges" - one might ask why the prior train was delayed. So the better explanation would be that the reason is the utter incompetence of Deutsche Bahn.
It seems we may have reached a new normal here, though it is too early to tell. Almost 1 degree above the pre-2000 average.
August 1, 2025 at 11:12 AM
It seems we may have reached a new normal here, though it is too early to tell. Almost 1 degree above the pre-2000 average.
doi.org/10.3749/2400... - just out for you to enjoy!
Crystal Fragmentation Inducing Euhedral Crystal Habits in Volcanic Rocks: Fracture Histories of Crystals from Various Tectonomagmatic Settings and Implications for Plumbing System Processes | The Cana...
doi.org
May 7, 2025 at 5:24 PM
doi.org/10.3749/2400... - just out for you to enjoy!
First Global Comparison of Glacier Mass Change: They’re All Melting, and Fast eos.org/articles/fir...
First Global Comparison of Glacier Mass Change: They’re All Melting, and Fast - Eos
By systematically assessing data gathered by different methods, researchers refined estimates of global glacier melt and its contribution to sea level rise.
eos.org
April 18, 2025 at 10:51 AM
First Global Comparison of Glacier Mass Change: They’re All Melting, and Fast eos.org/articles/fir...
"he presented findings suggest that this [AMOC] decline may be associated with an almost complete loss of stability of the AMOC over the course of the last century, and that the AMOC could be close to a critical transition to its weak circulation mode."
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Observation-based early-warning signals for a collapse of the Atlantic Meridional Overturning Circulation - Nature Climate Change
The Atlantic Meridional Overturning Circulation (AMOC) is currently strong, but transition to its weak mode could see significant changes in the climate system. This work presents an observation-based...
www.nature.com
February 3, 2025 at 1:43 AM
"he presented findings suggest that this [AMOC] decline may be associated with an almost complete loss of stability of the AMOC over the course of the last century, and that the AMOC could be close to a critical transition to its weak circulation mode."
www.nature.com/articles/s41...
www.nature.com/articles/s41...
iopscience.iop.org/article/10.1...
Troubling outlook...
Troubling outlook...
February 1, 2025 at 1:11 AM
iopscience.iop.org/article/10.1...
Troubling outlook...
Troubling outlook...
Happy Lunar New Year to my friends and colleagues in East Asia! May the year be prosperous, bring happiness, and fulfill your wishes!
January 29, 2025 at 8:21 PM
Happy Lunar New Year to my friends and colleagues in East Asia! May the year be prosperous, bring happiness, and fulfill your wishes!
Still in New Zealand, but transitioning to Bonn in March. Move preparations in are going well, hope to get back to do Science again soon. See some of you at IAVCEI in Geneva and some of you at Goldschmidt in Prague, I hope.
January 22, 2025 at 11:06 PM
Still in New Zealand, but transitioning to Bonn in March. Move preparations in are going well, hope to get back to do Science again soon. See some of you at IAVCEI in Geneva and some of you at Goldschmidt in Prague, I hope.