Shawn Wang

Explains why we’re seeing wildfires in February!

Wild winds on the Plains today, along with fire risk as we look at how the Colorado River negotiations failed spectacularly Deadpool in Glen Cayon may loom

Today’s post focuses on weather in the Plains. High winds and fire danger there. Additionally, we take a look at the failure of Colorado River negotiations this weekend. This is a big deal, and we have a bevy of links to primary sources that explain this issue. Details below or at theeyewall.com.

Trump's Climate Supercomputer Plans Threaten US Insurance Market: Actuaries A new letter from the American Academy of Actuaries draws a direct line between the planned dismantling of NCAR and higher homeowners insurance costs for US consumers.

The American Academy of Actuaries warns that dismantling NCAR would degrade the catastrophe models insurers depend on to price climate risk—driving up premiums and threatening coverage availability nationwide.
"Uncertainty carries a positive cost."
www.riskmarketnews.com/trumps-clima...

YouTube video by The Weather & Climate Livestream We ❤️ NCAR - Let's Save It!

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

Share your comments on NCAR with NSF Tell NSF the future that you want for NCAR by 13 March

AGU has an easy-to-use toolkit set for public feedback to proposed government actions. Now is a great time to respond to NSF’s proposed shuttering of NCAR. agu.quorum.us/campaign/154...

We knew the NSF letter about NCAR would come. I think this is an occasion that will require great coordination and strategical thinking. UCAR should respond as a block, coordinating a response across universities (especially in the South, and large public universities that use NCAR data a lot)

I would strongly encourage those who value the scientific & societal legacies of NCAR to offer feedback by March 13. I would expect, under present circumstances, perspectives from industry partners will be especially critical, though everyone's voice is of course important.

#savencar

So much American science passes through ncar.

Some of my closest collaborators and smartest colleagues are at NCAR.

This work would not have been possible without the computational resources from @ncar-ucar.bsky.social!

We find that while transport through all main passageways of the Indonesian Throughflow are projected to decrease, the mechanisms that drive their decline are distinct between them!

Remote and Regional Drivers of the Indonesian Throughflow Under Future Warming: Implications for Inter‐Basin Freshwater Transport Under future warming, Pacific wind changes reduce Indonesian Throughflow surface transport through the Halmahera Sea Future Atlantic Meridional Overturning Circulation decline induces oceanic adj...

Thrilled to share our new paper in GRL investigating future changes to Indonesias Seas currents using a high resolution climate model (CESM-HR)!

doi.org/10.1029/2025...

New study by Hu et al. reveals #IndonesianThroughflow’s nonlinear response to #CO2, with a rapid decline after crossing a #TippingPoint. The first point may be approaching, signaling a potential climate #Tipping element with implications for global #climate.
www.nature.com/articles/s41...

YouTube video by greenmanbucket Chris Piecuch: Sea Level Rise - AGU 2025

Chris Piecuch shows how the rate of sea-level rise along the US coast has doubled since 1900, from 2 cm to 4 cm per decade. It has risen by 40 cm by now.
Here he briefly explains this (and how the DOE claimed the opposite) at the AGU25 meeting last week.
www.youtube.com/watch?v=fI0K...

From @AGU.org: Senators are working on legislation to save NCAR, but we need extra support for these 8 states. Your Senators in Alabama, Alaska, Florida, Louisiana, Mississippi, North Carolina, Texas, and Wyoming need to hear from you.

To help #SaveNCAR, read our update below and visit this @aguscipolicy.bsky.social page, where you can find email text and a call script to share with your representatives. agu.quorum.us/campaign/151...

If nothing is done to stop Trump and the GOP, in three more years there will be nothing left of this country.

www.usatoday.com/story/news/p...

Last keynote for today by Sara Sanchez on "Data assimilation with coral d18O"

First keynote of today by Caroline Ummenhofer on "Indo-Pacific climate variability of the last millennium"

Next to presentations from 18 #SPP2299 projects, we have an impressive line-up of keynote speakers, including Andrea Grottoli, Alyssa Atwood, Caroline Ummenhofer, Sara Sanchez, Ben Henley, Christian Voolstra, as well as other excellent talks from our invited guests incl. Xuefei Chen and Mandy Freund

C-CoMP Bridge-to-PhD Fellow Emily Hu stands in front of the Providence River while holding brown collection bottles containing river water. Photo by Arianna Krinos.

A filter that was used to filter water from the Providence River is tinged with yellow, indicating a plethora of biomass in the water. A peristaltic pump is shown on the lab bench behind a gloved hand holding the filter. Photo by Arianna Krinos.

🌊🦠#FieldworkFriday
Our fieldwork doesn't only happen at sea!
C-CoMP researchers working with @maratimes.bsky.social collected Providence River water to test extraction methods for samples collected on C-CoMP cruises. In terms of filtering speed, 5 L of Sargasso sw = 50 mL of Providence River water!

Abrupt weakening of deep Atlantic circulation at the last glacial inception - Nature Communications Zhou et al. report an abrupt weakening of the Atlantic Meridional Overturning Circulation at the last glacial inception. The observed circulation slowdown could explain the delayed timing of the atmos...

Earth scientists know a lot more about getting out of an ice age than going into one. We report an episode of AMOC slowdown at 115 thousand years ago that's likely astronomically forced (via sea-ice) and coincides with a delayed drawdown of atmospheric CO2 @natcomms.nature.com rdcu.be/eALD1

Photo of Emily Hu on the R/V Atlantic Explorer during the 2025 C-CoMP March Cruise. Emily is standing outside with the bow of the ship and the ocean behind her. Photo provided by Emily Hu.

Emily collects seawater from the CTD rosette into a bottle on the deck of the R/V Atlantic Explorer during the 2025 C-CoMP March Cruise. Photo by Arianna Krinos.

Emily uses sterile forceps to load filters onto filter holders in one of the labs on the R/V Atlantic Explorer. Emily is using the filters to capture particles, including microbes, from the seawater. The DNA from the microbial cells will be extracted, sequenced, and analyzed to understand the microbial community composition of the seawater. Photo by Arianna Krinos.

📣#MTTM
🔬Emily Hu (@yunqianhu.bsky.social‬) is a C-CoMP B2P Fellow working with @maratimes.bsky.social & @akrinos.bsky.social at Brown. She uses microbial sequence data and computational tools to uncover how biotic🦠& abiotic drivers shape microbial community assembly in the North Atlantic Ocean 🌊.

Warmer shallow Atlantic during deglaciation and early Holocene due to weaker overturning circulation - Nature Geoscience A build-up of warm water in the shallow tropical Atlantic during the last deglaciation and early Holocene probably resulted from intervals of weaker Atlantic Meridional Overturning Circulation, accord...

Now out in Nature Geoscience! Evidence of subsurface Atlantic warming during past AMOC slowdown periods. It's an amazing study led by Wanyi Lu and I'm honored to have played a small role in generating some of the data!
www.nature.com/articles/s41....

NSF plans abrupt end to lone U.S. Antarctic research icebreaker Imminent termination of the RV Nathaniel B. Palmer shocks polar scientists

The National Science Foundation plans to abruptly end operation of the RV Nathaniel B. Palmer, the sole U.S. research ship capable of braving the farthest reaches of Antarctica and the Southern Ocean. scim.ag/4mB8LOX

Congrats Anson!!!

We are pleased to have @cavemangriff.bsky.social and Sam Bova as invited speakers for our 4th #PaleoSEA session at #AGU25.

Last week to submit abstract: tinyurl.com/paleoSEA2025
AGU Student Travel Grant: www.agu.org/honors/fmstg

Interested in how data, models, and theory can help us advance #paleoclimate research? Submit an abstract to #AGU session! Deadline to submit abstracts is July 30th 🌍⛰️📊💻
agu.confex.com/agu/agu25/pr...
@agu.org

The Secretary of Commerce's new policy requiring his personal review of all NOAA contracts over $100,000 is directly harming American science. 🧪

How do I know? Because this morning, twelve of America's rising leaders in climate science (including myself) were furloughed.

As of today, all current NOAA Climate and Global Change postdoctoral fellows have been furloughed due to the Dept of Commerce not releasing the funding for the program. In addition no new Fellows were awarded this year. cpaess.ucar.edu/cgc

Calling all (paleo)climate thinkers, data wranglers, and storytellers of the Earth system! Join us for our 4th #PaleoSEA PP030 – Southeast Asia and the Indo-Pacific: Past, Present, and Future Climate and Environment at #AGU Fall Meeting 2025 in New Orleans, Louisiana. (1/2)

@syiwang.bsky.social