Dave Bonan

Trump administration pushes ahead with NOAA climate and weather cuts Despite congressional resistance, agency aims to cut research spending now

"These cuts, which would hit basic science on the weather, oceans, and—especially—climate, represent a “down payment” on the White House’s proposal to eliminate NOAA’s research arm in the 2026 fiscal year that begins on 1 October, agency officials have told employees."

The dynamic range of poleward energy transport in an atmospheric general circulation model Understanding the reasons for which current climate models fail to reproduce the low equator-to-pole temperature gradient of past warm periods is among the major challenges in climate science. We foc....

This is super cool, Andrew! Nice work! I had been wanting to do something similar ever since reading Rodrigo Caballero's paper about poleward energy transport over a wide range of climates: doi.org/10.1029/2004...

The Trump administration has proposed devastating cuts to NOAA, including the potential closure of multiple cooperative institutes in Colorado.

Every American should oppose this reckless proposal — and we are building a coalition of lawmakers to do everything we can to defeat it.

👇🏾 👇🏾 👇🏾

Re‐Evaluating Historical Sea Surface Temperature Data Sets: Insights From the Diurnal Cycle, Coral Proxy Data, and Radiative Forcing Changes in the diurnal cycle of ship-based sea surface temperature (SST) measurements indicate that a wooden-to-canvas bucket transition occurred by 1910 Leading SST products apply corrections fo...

'an SST product capturing the early bucket transition is more consistent with coral proxies and expected responses from anthropogenic forcing' agupubs.onlinelibrary.wiley.com/doi/10.1029/...

Termination of OAR’s Climate Laboratories and Cooperative Institutes (-$102,292, -204 FTE/ -216 Positions) –NOAA will continue to support high priority ocean and weather research programs in NOS and NWS. In coordination with the requested terminations for Weather Laboratories and Cooperative Institutes (see OAR-10) and Ocean Laboratories and Cooperative Institutes (see OAR-19), NOAA will close the Atlantic Oceanographic & Meteorological Laboratory (AOML) in Miami, FL; the Air Resources Laboratory (ARL) in College Park, MD, Idaho Falls, ID, and Oak Ridge, TN, as well as a nation-wide network of soil moisture sensors; the Chemical Sciences Laboratory (CSL) in Boulder, CO; the Geophysical Fluid Dynamics Laboratory (GFDL) in Princeton, NJ; the Global Monitoring Laboratory (GML) in Boulder, CO, Utqiaġvik, AK, Mauna Loa, HI, Hilo, HI, Big Island, HI, American Samoa, and the South Pole; the Pacific Marine Environmental Laboratory (PMEL) in Seattle, WA; and the Physical Sciences Laboratory (PSL) in Boulder, CO.

What a tragedy this is even being proposed on paper... 💔

NOAA FY2026 Congressional Justification: www.noaa.gov/sites/defaul...

This is a devastating loss for polar science. Most folks who work on sea ice use these datasets on a daily basis. Hard to imagine life without them.

Pan-Pacific low-frequency modes of sea level and climate variability Coastal sea level records suggest that Pacific Ocean sea level and climate trends are unlikely to persist over the coming decades.

While global mean sea level rise over recent decades has been driven mainly by greenhouse gases, the regional pattern in the Pacific has likely resulted from sulfate aerosol emissions - with important implications for the coming decades... www.science.org/doi/10.1126/...

Atlantic Ocean Current Expected to Undergo Limited Weakening with Climate Change Caltech researchers, combining observations with an improved understanding of climate model behavior, suggest that a major Atlantic Ocean current will weaken far less under climate change than indicat...

A new study from Caltech finds that although the Atlantic meridional overturning circulation will weaken under global warming, it is likely to do so to a much lesser extent than current projections suggest.

www.caltech.edu/about/news/a...

Atlantic Ocean current expected to undergo limited weakening with climate change, study finds The Atlantic Meridional Overturning Circulation, or AMOC, is a system of ocean currents that plays a crucial role in regulating Earth’s climate by transporting heat from the Southern to Northern...

#UWEnvironment researchers have a new paper showing that the Atlantic Meridional Overturning Circulation is likely to weaken to a much lesser extent than current projections suggest. 🌊 🌊
www.washington.edu/news/2025/05...

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 in the twenty-first cen...

'By incorporating observational constraints, we conclude that the AMOC will experience limited weakening of about 3–6 Sv (about 18–43%) by the end of this century, regardless of emissions scenario.' www.nature.com/articles/s41...

Schematic illustrations depicting the processes linking the present-day and future Atlantic meridional overturning circulation strength

⚒️ Article: Observational constraints suggest that the projected weakening of the Atlantic meridional overturning circulation in the 21st Century will be less severe than previously anticipated

www.nature.com/articles/s41...

Atlantic Ocean Current Expected to Undergo Limited Weakening with Climate Change Caltech researchers, combining observations with an improved understanding of climate model behavior, suggest that a major Atlantic Ocean current will weaken far less under climate change than indicat...

Check out the paper and this press release from @caltech.edu to learn more about the fate of the AMOC over the 21st century: www.caltech.edu/about/news/a...

Using ocean observations, we show that the real-world AMOC is closer in structure to the shallower models. This suggests that the AMOC will experience only limited weakening, even under high-emissions scenarios.

We resolve a long-standing puzzle: climate models with a stronger present-day AMOC project greater weakening. This occurs because their overturning is deeper which allows surface warming and freshening to penetrate further and disrupt circulation.

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 in the twenty-first cen...

In a new Nature Geoscience‬ study with Tapio Schneider, Andy Thompson, Laure Zanna, Kyle Armour, and Shantong Sun, we show that the AMOC will weaken by only 18–43% by century's end despite models projecting a wide range, from modest declines to near-collapse. doi.org/10.1038/S415...

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