How can records of the past inform our understanding of extreme events?
Join the National Academies
on April 29 for a webinar releasing a new report on a proposed Center for Paleoenvironmental Records of Extreme Events (CPREE).
Register:
events.nationalacademies.org/46602
🌊 If the AMOC collapses, the ocean could flip from a carbon sink → carbon source.
Mechanism:
↓ NADW formation
↓ Carbon sequestration efficiency
↑ Atmospheric CO2
Net effect: a shift toward ocean-driven carbon release and enhanced warming (positive feedback)
www.nature.com/articles/s43...
We have a new perspective piece out at Nature Geoscience taking a critical view of how we talk about ice sheet stability and where we can go from here. Check it out! rdcu.be/faUdM
⚒️ Article: Entrained debris records regrowth of the Greenland Ice Sheet after the last interglacial
www.nature.com/articles/s41...
Antarctic ice cores hint that changes in the ocean might have played a larger part than have greenhouse gases in key climate shifts of the past three million years
go.nature.com/4uFWL38
In "Climate Models as a Retroactive and Exploratory World-building Tool," John Cook et al examine the fantasy worlds of J.R.R. Tolkien, George R.R. Martin & Robert Jordan, as well as one built by Cook, as speculative climate models on a global scale.
Read here: fafnir.journal.fi/article/view...
A nice example of the high scientific standard of the IPCC when it comes to downplay the warming
Complex Earth system models are needed to simulate all these feedback's now becoming operational
#climate #IPCC #CMIP
Nature research paper: Sea level much higher than assumed in most coastal hazard assessments
go.nature.com/4lesnZA
The amount of misogyny is academia remains horrific -- and even worse, it is not going away with the older generation as one might have hoped. It is being recapitulated in a new generation.
🌊 Sea level much higher than assumed in most coastal hazard assessments
www.nature.com/articles/s41...
A multiple-satellite study of Antarctica’s grounding line area show a loss of 12,820 km2 over the last 30 years. Grounding lines are the contact points where continental ice sheets anchor to the seabed, slowing their flow into the oceans.
www.pnas.org/doi/10.1073/...
#Antarctica #sealevelrise
"From 2010 to 2024, ERF trends are ∼1.0 W m² per decade for both net and shortwave fluxes, exceeding those for 2001–2024 and substantially larger than projections from state‐of‐the‐art models"
doi.org/10.1029/2025...
Big Friday energy on Nature this afternoon 🧪
This is figure 1, which shows a risk map of Antarctic ice catchment basins.
The results of a study in Nature Climate Change imply that the Antarctic Ice Sheet does not act as one single tipping element, but rather as several tipping systems interacting across drainage basins. go.nature.com/4rFXQ9q 🧪
East Antarctica has been the epicenter for unusually persistent blocking and atmospheric river landfalls that have resulted in some extreme high temperatures. From February 12-March 1, I've noted 5 distinct atmospheric river events observed/forecasted over Wilkes Land.
🤯⚒️🧪❄️ "Preliminary dating, based on the presence of fossilized algae that only existed during specific geological periods, suggests that the core represents an archive of the past 23 million years" in West Antarctica
The implications of overshooting 1.5 °C on Earth system tipping elements - a review
"Global warming must peak below 2°C, return to below 1.5°C as quickly as possible (i.e. within this century), and to around 1°C thereafter to limit tipping point risks".
iopscience.iop.org/article/10.1...
Google Maps is like really bad in Antarctica by the way
Last December, weather and climate scientists sat down with us to tell us why they loved the National Center for Atmospheric Research, and why it benefits us all. Last night, the NSF began dismantling it. Listen to what they have to say, and why it's urgent that we #SaveNCAR wclivestream.com/act
Excited to have this paper out showing a strong coupling between Central American tree-ring oxygen isotopes and ocean–atmosphere dynamics (interbasin SST gradients, ITCZ, CLLJ... ). Many thanks to all co-authors!
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
Photo showing a tall, jagged ice front of the Ronne Ice Shelf in West Antarctica rising above the calm surface of the Weddell Sea. Credit: Torsten Albrecht / PIK.
🔔🚨 New Publication Alert!
Research has shown that the Antarctic Ice Sheet is a climate tipping element.
We found: it’s not one — it’s many.
📄 Paper (open access): www.nature.com/articles/s41...
📢 Press release: www.pik-potsdam.de/en/news/late...
Tread below 🧵👇
RealClimate: The Climate Science reference they don’t want Judges to read www.realclimate.org/index.php/ar...
How do glaciers drive and interact with Earth's regional and global biogeochemical cycles? ❄️🏔️🦠🪨🌊🌎🧪⚒️
@natrevearthenviron.nature.com
Expertly led by Jon Hawkings & many collaborators
@mioceanologie.bsky.social @cnrs.fr @cnrs-dr12.bsky.social @cnrs-insu.bsky.social
www.nature.com/articles/s43...
Image of the article page for a new paper
If you're interested in how ice sheets respond to climate, particularly over very long timescales, you might be interested in our new (open access) paper:
www.nature.com/articles/s43...
⚒️ Article: South Pacific carbon uptake controlled by West Antarctic Ice Sheet dynamics
@icbm-uol.bsky.social @awi.de @climate.columbia.edu @lamont.columbia.edu @gisela-winckler.bsky.social
www.nature.com/articles/s41...
@agu.org has a tool to help you submit a comment to NSF on the importance of NCAR: agu.quorum.us/campaign/154...
#SaveNCAR
Check out the @pnas.org highlight for our new paper on how Paleoclimate Pattern Effects in the Pliocene lead to tighter constraints on the modern response to CO2 (a.k.a. climate sensitivity)
Just an astonishing lede in this @isaacstanleybecker.bsky.social story. www.theatlantic.com/politics/202...