How can we explore the future of the world's forests? Understanding the demography of their trees is key. In We took the new gen of global demographic vegetation models and held their roots to the observations. Thanks @annemarie-es.bsky.social for leading! nph.onlinelibrary.wiley.com/doi/10.1111/...

MAJOR NEWS: @GavinNewsom signed SB 79, my bill allowing more housing near public transit — rail, subway, rapid bus. It’s a huge step for housing in California. It’ll create more homes, strengthen our transit systems & reduce traffic & carbon emissions. Thank you, Governor!

Strong statement today from UC's Academic Senate:

Mr. Bob is a true local hero of street safety, and it is so infuriating that he was attacked in this latest instance of senseless car violence. I really hope he makes a full recovery.

Our finalised paper on flat10MIP is finally up in GMD! This is the experimental protocol which allows for a simple, emissions-driven evaluation of TCRE, ZEC and climate reversibility in CMIP7. Thanks so much to all who ran these simulations as a proof of concept! gmd.copernicus.org/articles/18/...

I'm happy to share a paper in Science Advances that makes the case for a weak land carbon sink, drawing upon JPL and Chloris biomass time series. To close the budget with a net land sink of 0.8 Pg C/y from 2000-2019, we propose increases in the ocean sink and decreases in fossil fuel emissions.

Really excited to see the flat10MIP paper out! Since the preprint, we've added this new figure, showing the ESM ensemble of warming—normalized by the warming at year 100, to remove the uncertainty due to differing TCRE across models—versus cumulative CO2 emissions in the esm-flat10-cdr experiment.

The #IPCC has announced the authors selected for its Seventh Assessment Report. 664 experts from 111 countries have been invited to participate as Coordinating Lead Authors, Lead Authors, & Review Editors. 🌍 51% from developing countries 🚺 46% women 🔗 bit.ly/AR7AuthorsPR

This is such a loss. I've served on the selection committee for this program for the past three years, because it has funded so many incredible people doing such important research over the years. It should be expanding to meet the new challenges of climate change, but instead is totally defunded.

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

If they close all these research labs, you can't just undo it four years later. Decades of expertise and tons of specialized equipment will be scattered to the wind. Rebuilding would take ages.

The Senate version of GOP's budget bill dropped in the middle of the night. Astonishingly, it got EVEN WORSE. It raises energy costs, kills $100s of billions of investment in manufacturing, makes grids less reliable, increases pollution & constrains our ability to compete w/China on AI. Loser stuff.

In case you’re interested in what’s targeted for termination in the Department of Energy budget, it looks like it is the entire environmental half of Biological and Environmental Research:

This is a seismic gut punch to the weather enterprise. It is impossible to overstate how important @unidata.bsky.social is in implementing many datasets/libraries (LDM, netCDF, THREDDS, metPy) we currently use in meteorological research & operations. www.unidata.ucar.edu/blogs/news/e...

These ‘let’s attract the hot-shot researchers’ calls ring very hollow to me. Climate science is a team sport. It takes a whole set of skills. We need to be thinking about how to keep critical -teams- integrated. Nabbing hero-model scientist types is not going to retain institutional expertise.

AGU has filed a new lawsuit to prevent the Administration’s dismantling of U.S. scientific agencies. We’re proud to take this stand with our plaintiffs’ coalition for our federal workforce. buff.ly/3U56ooz

Foundation-funded postdoc funding opportunity to work in WA state! Interested in applying to work with me on climate on land or global carbon cycle dynamics? Reach out! Info sessions in May and June, due date June 26. www.wrfseattle.org/grants/wrf-p...

The State Department is eliminating the office that oversees global climate negotiations, in another effort to gut U.S. climate action. One official described the move as “just strategically fucking dumb.” www.politico.com/news/2025/04...

NASA Is Terminating The GISS Lease In Five Weeks nasawatch.com/personnel-ne... "NASA’s lease of Columbia University’s Armstrong Hall in New York City, home to the Goddard Institute for Space Studies, will end effective May 31, 2025."

The land grant university system, the research university innovation engine, the national lab system, America perfected these. They are as American as apple pie. We don’t have a king. These are America’s Crown Jewels.

Saw Kraftwerk play at the Berkeley Greek Theater last night, which happens to be right in front of the @nersc.bsky.social computers, on which I happen to have some global carbon cycle simulations running at the moment. Fun intersection of different computer worlds!

A record increase in atmospheric CO2 according to data released by NOAA gml.noaa.gov/ccgg/trends/..., much higher than projected in the Global Carbon Budget essd.copernicus.org/articles/17/.... This occurred in the presence of an El Niño (red bars, data also from NOAA!). What does this mean? 1/

🚨Calling U.S.-based climate experts! The newly formed U.S. Academic Alliance for the @ipcc.bsky.social is now accepting nominations for the Seventh Assessment Report.🌍 Join a global network of scientists shaping the future of climate action. Apply by April 4: buff.ly/hDrBH1F #IPCC #AGU

Very excited to share a new initiative to ensure US climate scientists will be nominated to IPCC AR7 cycle. The new U.S. Academic Alliance for the IPCC (USAA-IPCC) has opened a call for nominations, hosted by AGU: www.agu.org/ipcc-nominat... We encourage eligible scientists to apply by April 4th!

My latest: The mass firings at NOAA can feel abstract. Here's what was lost at one research center -- the birthplace of climate modeling. Fired staff became U.S. citizens to pursue these dream jobs, only to have their dreams upended.

🧵 Yesterday I shared my views on how disordered discourse has captured the US state and the risk of that happening elsewhere, but I don’t want to leave you hanging without proposing a solution.

*Three more* NorESM-centric positions (1 permanent, 2 fixed-term) available at MetNo (Oslo). Come and join our community modeling team! :D www.jobbnorge.no/en/available...

🚨 Now CCN-official 🚨 Trump issues stop-work-order to NASA chief scientist #KateCalvin, who is also co-chair of the IPCC's working group in charge of the next assessment on climate change mitigation. This is brutal, on so many levels. edition.cnn.com/2025/02/21/c...

A source involved in @ipcc.bsky.social told me it's "bizarre, sad, depressing" Biden admin pushed to have a big role in the next IPCC report. NASA Chief Scientist was co-chairing a working group. I'm told EU could take on some of the role but "it's looking really worrying" bsky.app/profile/aaro...

Scoop w/ @mariacurie.bsky.social : U.S. to pull delegation from UN climate science meeting (IPCC Plenary in China next week) www.axios.com/2025/02/20/u...

Our @newphyt.bsky.social paper with @ckoven.bsky.social and others used a dynamic vegetation model to understand how grass allometry and phenology influence annual grassland matter and energy exchange and their seasonality, as well wildfire dynamics: nph.onlinelibrary.wiley.com/doi/10.1111/....

We have a *permanent* position open at @ciceroclimate.bsky.social , working on calibration and general awesome-ification of the CLM-FATES model, across a fun set of projects www.finn.no/job/fulltime... Flexible wrt career stage and the balance of science/technical work. Tell all your friends!

Draft chapter outline for IPCC AR7 WGI is now public - *subject to approval* at the plenary, end of Feb What's new? Compared to AR6: -More concise -greater range of modeling approaches -chapters span Earth System domains -considers diverse physical scenarios /thread/ apps.ipcc.ch/eventmanager...

The meeting is hybrid, so join us online from anywhere for free! Tutorial for running emissions-driven CESM is in person only, and it would be great to see you in Boulder. We will also make all of the materials from the tutorial public.

Joined a fantastically interesting workshop on TCRE and ZEC last night If you have ideas on the assessment and definition of TCRE or ZEC (including on whether ZEC is even a useful/real concept) submit to this EGU session! 👇 1/2

@queenofpeat.bsky.social moderating a panel of early career scientists who are all leading new synthesis products via the Permafrost Carbon Network. Really exciting to see all of this amazing work happening!

AI helps researchers dig through old maps to find lost oil and gas wells, which pose a hazard to both the environment and the climate. 🧪 #AIforGood #MappingOurFuture newscenter.lbl.gov/2024/12/04/a...

A thing I love about my ebike commute to work at @berkeleylab.bsky.social is all the random stuff one notices but would miss in a car. This morning’s installment: clouds of insects hovering at the tips of every coast live oak tree crown on one of the hillsides.

First chanterelle of the season in Berkeley, just in time for Thanksgiving

Join us for an update, Q&A and discussion (Dec 13, 12:30 pm), on the implementation of the U.S. National Strategy to Advance an Integrated GHG Measurement, Monitoring and Information System (GHGMMIS) agu.confex.com/agu/agu24/me... #AGU2024

New paper on #CMIP7 emissions-driven design out today in GMD. Earth System Modeling has long relied on simulations driven by GHG concentrations. But this approach is outdated. ESMs need to resolve human activity and its consquences. gmd.copernicus.org/articles/17/...

The NOAA Climate & Global Change (C&GC) Postdoctoral Program is now accepting applications. Deadline is January 10, 2025. This is open to all climate and global change related disciplines, including social and interdisciplinary sciences. 🧪

Can I take a moment to note that planning, conducting and analyzing a totally new ESM MIP outside of the CMIP machine is a -lot- of work. Well done to my (nearly) indefatigable other half @benmsanderson.bsky.social & all who helped out with this. 👏👏👏

Really excited for this flat10MIP preprint to come out! In addition to @benmsanderson.bsky.social's points below, I want to add what I think is coolest about these experiments. /Thread/

Here is another #Bluesky starter pack with scientists who were involved in the @ipcc.bsky.social #AR6 reports (with a likely WGI bias). Please let me know if I missed you! go.bsky.app/Erpq9Sq @valmasdel.bsky.social @edhawkins.org @glenpeters.bsky.social @lisaschipper.bsky.social

LOTS of land modelers joined #bluesky in the last 24h. @climate-dude.bsky.social,@mlague.bsky.social @kaaze7.bsky.social @rebeccamayvarney.bsky.social @aargles.bsky.social @ryanpavlick.bsky.social @ladyfortran.bsky.social @samsrabin.bsky.social @tompugh.bsky.social @tquaife.bsky.social & many more!

I made a list (or 'starter pack') of Land Surface Modelers, because that's the kind of thing one does on #bluesky. Please tell your friends and also (v. important) TELL ME if you want to be added. We need more people here! go.bsky.app/Mw4tJ3t

2010 was the first year above 1.0C. 2014 was the last year below 1.0C 2024 is the first year above 1.5C...