Bordeaux, France, has now recorded more days above 40°C in 2026 alone than during the entire 105-year period from 1920 (when observations began) to 2025. This is deeply shocking.
Dave Bonan
@davebonan.bsky.social
I study the processes governing Earth's climate system and how it changes. www.davebonan.com
New paper out in @pnas.org: this year’s western U.S. snow conditions were pretty dismal, but to what extent was this snow drought due to climate change? Paper: www.pnas.org/doi/10.1073/... (with Marianne Cowherd, Stefan Rahimi, Yuhong Ye) Thread:👇
PNAS
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
pnas.org
With all the July model runs now in, it is very likely that 2026 will see the largest El Niño event since records began in the late 1800s – and potentially by a truly mind-blowing margin. The median estimate is now 3.6C, roughly 0.8C hotter than the prior record (2.75C). www.theclimatebrink....
'Our findings suggest that Siku events may have played a critical role in preconditioning the North Atlantic for Heinrich events' www.nature.com/articles/s41...
North Pacific meltwater weakens the Atlantic Meridional Overturning Circulation and preconditions Heinrich Stadial 1 - Nature Communications
This study shows that Cordilleran ice discharge to the North Pacific may have triggered AMOC weakening during Heinrich Stadials, potentially destabilizing the European and Laurentide Ice Sheets and le...
nature.com
I'm excited to share that I'll be joining the @csuatmossci.bsky.social as an Assistant Professor in Jan. 2027. Interested in research on the physics and dynamics of Earth's climate? Please reach out! If you don't know Fort Collins, here's The Diamond on Longs Peak at sunrise, as seen from the city.
Former NOAA Employees Revive Climate Site Shut by Trump Administration www.nytimes.com/2026/06/23/c...
Former NOAA Employees Revive Climate Site Shut by Trump Administration
nytimes.com
Been wondering why NSF isn't spending most of its FY26 appropriation? A $1.5B tech initiative may be the reason. And big cuts to hundreds of research programs could be just the beginning of the bad news. www.science.org/content/arti...
Exclusive: NSF slashes research programs to support new tech initiative, insiders say
Unexpected shift in funds has meant sharp drop in grants this fiscal year
science.org
The Administration's Office of Management and Budget (OMB) released a proposed rule that would politicize federal science grantmaking, replacing scientific rigor with ideological gatekeeping. AGU President Brandon Jones on why it's important to make your voices heard: spklr.io/6011E3zfZ
A balanced take on a nuanced subject, providing a clear summary of the current state of AMOC research and many of the discussions from a workshop in the UK last week. The idea of a more resilient AMOC is consistent with some of our theoretical work on future AMOC changes: rdcu.be/eoqVt
Observational constraints imply limited future Atlantic meridional overturning circulation weakening
Nature Geoscience - Observational constraints, along with a better understanding of climate model behaviour, suggest that the projected weakening of the Atlantic meridional overturning circulation...
rdcu.be
It's out. My latest feature for @science.org, from aboard the RRS Discovery: a deep look at the past, present, and future of AMOC, told through the RAPID program. AMOC is weakening -- maybe, probably. But it also may be more resilient than some have made it seem.
Even with federal grants largely restored, scientists say the Trump administration is still preventing those funds from reaching them. The consequences, they say, are already becoming clear.
Researchers say the Trump administration is finding new ways to punish science
Even with federal grants largely restored, scientists say the Trump administration is still preventing those funds from reaching them. The consequences, they say, are already becoming clear.
n.pr
Using an idealized climate model, scientists show that the spatial distribution and orientation of land strongly shapes Earth's response to increased atmosphere carbon dioxide concentrations. Learn more: doi.org/10.1029/2025... #AGUPubs #Geomorphology #Climate #ClimateChange #ClimateModels