There is a huge shift in climate politics happening RIGHT NOW in Santa Marta, Colombia. Countries are meeting to discuss a treaty to phase out fossil fuels -- the one issue that #UNFCCC has studiously avoided for 30 years. 🧵

Please take a moment to read this important story, featuring the experience of University of Melbourne lecturer Kate Dooley — one of the scientists volunteering to support the development of forest carbon accounting rules under the Greenhouse Gas Protocol.

I submitted an independent scientific response to California's SB 1383 livestock methane RFI. No industry funding. 12 questions, 141 citations. The science on enteric methane mitigation is more complicated and more urgent than current policy reflects. ww2.arb.ca.gov/form/public-... #GreenSky

There's a global race to secure EV battery gigafactories & reduce reliance on China. But not all clean-tech projects are created equal. Some generate good jobs & domestic capacities, others produce ecological harm & low value-added enclaves. New paper & thread 👇 www.tandfonline.com/doi/full/10....

Can we finally agree that burning wood for energy is a terrible idea and won't be carbon neutral, let alone carbon negative, in our lifetimes? BECCS using wood certainly shouldn't qualify as CO₂ removal (CDR).

I wrote about how Trump is making America's terrible biofuel policies even worse - and how most Democrats and environmentalists are too afraid to fight back. @canarymedia.com www.canarymedia.com/articles/foo...

Climate policy and consumer protection update: The Environmental Defense Fund is promoting a bill in California that would practically eliminate greenwashing liability for carbon-credit buyers. They are also making the same arguments in court.

Long-term studies are vital to understanding how species and ecosystems are responding to climate change and other environmental stressors, but difficult to sustain under typical short-term grant cycles. LTER has been funding these since 1980. This is breaking something that can’t be replaced.

The biggest problem with the food system is that it is no longer a *food* system. More than half the calories we grow on croplands aren't food; they're lost in inefficient feedlots or to biofuels. Project Drawdown scientists highlight this disturbing trend: sentientmedia.org/more-crops-g...

We are still feeling the effects of some of the carbon dioxide from the Titanic, from the first Model-T, from the first steam engine. This chart is the most important chart in climate policy and yet most folks don’t know about it. Carbon dioxide is forever.

I just resigned from NASA. It breaks my heart to leave, but I’ve become convinced the best path forward is to do the best science I can, and that can’t be here anymore. I’m still in love with the promise of those four magic letters. Ad astra per aspera, and remember: Earth is the only good planet.

Middle East war is set to reprise 2022's fossil fuel price crisis — and its war windfalls for oil and gas shareholders. Will governments redistribute those profits this time? Our op-ed in @theguardian.com

it's a real mindfuck to see the leadership of a publication creating some of the most important journalism of a generation trying to screw the people doing the work

California's experiment in trying to build a Nordic-style safety net on a Norquist-style tax system is not working and I don't think it's responsible for gubernatorial candidates to call for taking it to the next level

What happens to the climate system when global CO2 emissions reach zero? We all know that the temperature stops rising (stays approximately constant), but there are a few implications... rdcu.be/e73i4 1/

Now that everyone’s paying attention to global energy markets and effects of faraway events on prices and decision-making, is it a good time to talk about the indirect land use effects of dedicating cropland to biofuel production or nah?

I do love a good political economy study. Very interesting work!

This is really nicely done, and is a nice example of how much the climate and housing advocacy communities have in common. Great work, Dave & co.

Imagine: it is 2026 and you are the Governor of California, which faces a difficult budget year and is struggling to align its climate policies with statutory targets. What should you do? And why on earth is it "propose a new tax credit for aviation biofuels?"

Jamie Raskin's 10-minute annihilation of Pam Bondi today is one for the history books. The profound, targeted ferocity is breathtaking.

We’ve got to get ready to support Springfield however we can

Re-upping this amazing piece to highlight an important aspect of its intellectual contribution. This is a two-author policy forum with no figures or charts. You want an example of why the humanities matter for clear thinking on technical topics? Here it is.

New from @gruberte.bsky.social and I in @science.org: The energy transition is at risk, and energy models are missing the threat. Fossil energy networks from oil to coal to gas have minimum viable scales of operation, and those thresholds are closer than we think: www.science.org/doi/epdf/10.... 💡🔌

The only time this situation will de-escalate is when this federal occupying force ends its siege. They are the escalating factor and, have been this entire time. Until then, this office will communicate as transparently as possible regarding ongoing investigations.

"If we have to hunt you down, the way they hunted down Nazis for decades, we will find your identities. We will find you. We will achieve justice. And we will do so under the Constitution and laws of the United States." www.youtube.com/watch?v=0Ft1...

“I’m so sorry I went to Yale Law and they’re not allowed to give us bad grades when we are wrong on the law.”

Friends, can you help out with a donation to help feed families impacted by ICE in Portland, ME? (my friend isaac's colleague Lucy is a local, so I trust this and just donated myself)

Do you like charts? Oh yes you do. I've just published hundreds of them, as I do every year. www.nathanielbullard.com/presentations

Big, big news! This is probably the coolest of the many jobs I have shared here! 🚨COME BE MY DEPUTY🚨 🚨JOIN THE BEST TEAM WORKING IN CLIMATE POLICY AND POLITICS!🚨 This. Will. Go. Fast.

This Yglesias piece in the NYT is horrifically bad. Almost every "fact" it cites is provably false. At best it is cocktail party banter from a pundit who knows nothing of energy. At worst, it was cut/paste from oil industry talking points. So, a rebuttal: www.nytimes.com/2025/12/18/o...

An absolute bedrock institution for understanding how the planet works, just civilization-scaled vandalism by the most incurious morons on Earth

🧵 I was driving my quite elderly mother around this wkd and put on one of my fav songs: Gil Scott-Heron’s “Lady Day and John Coltrane.” “What’s this about?” she asked “How greats like Billie Holiday can transport you." "I saw her, you know," mom said. "At the end." www.youtube.com/watch?v=7aRN...

Tyger! Tyger! my mistake; I thought that you were William Blake

"...the situation became more difficult this year as the government, and its priorities, changed... I was not comfortable with the process becoming neglected or preformative, and it had begun to feel that way to me" www.linkedin.com/posts/simon-... #Canada #Climate

This was a great discussion of a major development in Canadian climate politics, highly recommended.

Re-upping this position before the December 1st application deadline. I'm looking to hire a post-doc - could be a climate scientist or environmental economist. Ideal start early 2026 but could be later. Please circulate!

🚨job alert🚨 I'm looking to hire at least one PhD student for next year, looking at decarbonization-oriented technology deployment within an ethical frame of resource allocation and justice outcomes. Full ad attached! Pref for CEEES admissions; deadline is 1 January.

WE WON!!! The US District Court for the Northern District of California has issued a preliminary injunction in AAUP et al v. Trump et al (the wall to wall union lawsuit challenging the administration’s unlawful use of Title VI to reshape the University of California system. Read the order here:

Riding the circuit. No clerks. No building. No shadow docket. Nothing, until the Wizards In Robes stop ignoring the law, data, history, precedent, & the plain meaning of words in the Constitution. And there will be 25, with 9 chosen by lottery for any case.

COP30 TEXT: The first draft text on international carbon markets under Article 6.4 of the Paris Agreement dropped overnight Debates inc: * term limits / transparency for supervisory body * extended deadline for CDM transition * nature-based removals / non-permanence 1/2

Ok apparently this is actually not widely known: Gov. Shapiro withdrew Pennsylvania from RGGI today as part of a deal to pass a now-4month overdue budget.

HELLO. REALLY SPECIAL JOB ALERT at @climatecabinet.org We’re looking for a Senior Development Director. Maybe it is you. Maybe it is someone you know. Details here 👇👇👇

Does burning more wood lead to more forests & help the climate? In a new Nature paper, WRI & Yale researchers show such claims rely on flawed accounting and models, and misinterpret underlying studies. Read the papers: rdcu.be/eNkXX RSVP to a webinar 10/31, 9:30 ET: hub.wri.org/events/2025/...

SF made it easy for residents and business owners to remove car traffic for safe community celebrations. Thanks, Safe Streets for All, for mapping car-free Halloween night celebrations. For your own next block party, see www.sfmta.com/block-party-... www.google.com/maps/d/u/0/v...

consider this part one of what will be an ongoing series making the case for an imperial congress (gift link)

this is a very impressive analysis of some of the statistical "oddities" in Pielke Jr's analysis that normalized climate impacts are declining. Everyone should read this. economicsfromthetopdown.com/2025/10/26/r...

Thanks to everyone who has helped raise $575.80 so far! ICE is being deployed in our city, and we're week from the suspension of SNAP and LIHEAP - two essential, life-saving federal programs affected by the federal shutdown. Every bit is going to help. Could you help get us to $675?

While this federal administration has been busy empowering ICE to become, essentially, an extrajudicial militia allowed to disappear people from our streets, the Bay has been organizing. We will not be beaten down.

Time for 2025 updates to my annual “opinions about solar” thread. If you like these, you might like the second edition of my book, Solar Power Finance Without The Jargon. A 30% discount code WSQ0437 is valid on publisher website until end of November 2025. www.worldscientific.com/worldscibook...

Important new carbon markets story from @benelgin.bsky.social in Bloomberg: Verra acknowledges it issued too many carbon credits to a controversial forest offset project, but hasn't implemented a remedy — despite backing companies' use of these credits. 🎁 Gift link below.