I ordered a triple cheeseburger with everything removed. Stay tuned to see what happens

The decline in emissions in planet-cooling sulfur dioxide since 1980 is also reflected in ice cores from Greenland where sulfur concentrations are approaching again preindustrial levels. 🏭🌡️ Leon Simons Zeke Hausfather

On October 7, Shani’s contorted body was paraded through the streets of Gaza as Palestinians cheered.

The IDF has recovered her body and brought it back to Israel for burial. May this beautiful girl finally rest in peace 💔

If this is new training data the results are going to be something

More of the expected (interestingly Ulf is a co-author, who wrote the recent piece on scientists and activism where he also took some issues with the IPCC SPM's historic vs. paleo comparisons)

The amount of fundamental radiative transfer work done by the US Air Force – and the role its had in measuring the heat-trapping properties of CO2 and other greenhouse gases – is an under-appreciated story. We still use the HITRAN database today: en.wikipedia.org/wiki/HITRAN

I just said this to Chris Hayes for an upcoming pod and I think it's so important for people to understand: you can make a bulletproof case for the clean-energy transition that *doesn't mention climate change at all*.

Does Net Zero mean Zero Cows? Our take here: tandfonline.com/doi/abs/10.108…

Fair critique of failure to communicate mapping out global temperatures to the actual impacts.

I still think it’s funny that at conferences your talk needs to go through a “speaker ready room” where it needs to survive the filter of Windows 95-esque software in order to be good to go

Climate modeling question- are there some examples of groups documenting sensitivity changes in their model across unfrozen versions of their code (especially with different choices for cloud parameterizations, etc?)

Science in action: in 2020 the Sherwood et al WCRP review estimated a -ve anvil cloud area feedback, but with large uncertainty. Now 3 papers out ~simultaneously have found a weak, +ve anvil cloud feedback using observations, high res models and simple theory

I know that this 'CO2 is not a pollutant' stuff is just boring a soundbyte from crackpot twitter, and isn't actually relevant for anything, but it actually is interesting that the lowest atmospheric CO2 levels over G-IG cycles are reasonably close to the C3 photosynthetic

The way to do this (as Meehl et al did, as well as others) is based on deviation from a 1/N model, where N is the number of observations (since there will be more records in the early part as a dataset) and assess the ratio of daily record high to daily record low minimum

So does Musk care or what

Whenever people frame climate science as a debate between mainstream science (who agree on everything) and 'skeptics' (who are challenging things), a gentle reminder that it is mainstream science that is skeptical in a way that iterates on understanding and advances knowledge

We've got a new paper in Communications Earth & Environment led by Jan Esper and Jason Smerdon. We argue that the IPCC's focus on a single Common Era temperature reconstruction was an 'insufficient summary of our understanding of temperature variability' and we provide a broader context