“Talking straight here,” [A Reagan appointed judge] said. “The big problem in this case is that the Cabinet secretaries and ostensibly, the president of the United States, are not honoring the First Amendment.” wapo.st/4qjwsxj

"If sourcing grass-fed or organic beef to meet sustainability or animal welfare commitments, you'll need to source even less beef to offset any higher emissions from these alternative systems." New report from @wriclimate.bsky.social on climate impacts of beef.

There’s no such thing as climate-friendly beef—despite a growing number of "carbon neutral" and "net zero" beef labels entering the marketplace. New WRI research reveals why: it’s about the land. Learn more: go.wri.org/beef-emissio...

Happening Now: Students have walked out of school and are protesting against ICE in Saint Paul, Minnesota

"This transition will happen. Gas use is declining, and that decline is about to accelerate. The only question is whether Massachusetts will manage it intelligently, as it has in the past, or will it let utilities trap customers in a system in decline." commonwealthbeacon.org/opinion/the-...

If you think about academic tenure, I highly recommend this piece by Jacquelyn Bridgeman which, among other things, shows what it can look like when _any_ faculty member can sit in on tenure proceedings and review documents. #acadsky www.jstor.org/stable/pdf/j...

Do you know what else has uncertainty? Estimates of the _costs_ of air pollution standards. Those can also be quite uncertain but are often portrayed as confident point estimates by the very industry folks who have pushed EPA to ignore the economic value of benefits.

Now Trump EPA head, Lee Zeldin, enters the scene with rank dishonesty & theatrical indignation to dispute the NY Times' correct, accurate reporting. But I've read the EPA smoking gun document, I'm a 30+-year clean air lawyer, I understand its meaning better than Zeldin, & I have the receipts. 1/

Other things that do more harm than good when you don't count the number of lives they save: - air bags (messy) - traffic lights (expensive) - bridge inspections (boring) - carbon monoxide alarms (battery low beep so annoying)

Cost benefit analysis but without the benefits b/c facts are inconvenient! "E.P.A. would no longer take health effects into account in the cost-benefit analyses necessary for clean-air regulations, according to the documents"🤯 #econsky www.nytimes.com/2026/01/12/c...

Start a 🚲🚌 for your New Year's Resolution! insideclimatenews.org/news/0801202...

"the program has been beset by runaway costs and contention over how the state squares the circle of justifying hundreds of millions of dollars each year in investments into a gas system that [MA] is at the same time trying to cut off — and rather quickly." commonwealthbeacon.org/energy/new-r...

Free webinar on Leading Campus Decarbonization Efforts - this Wednesday Jan 14 3-4 EST. Someone from your college or university should check it out. 🔌💡 #greensky www.aashe.org/calendar/cam...

“Can I check a pulse?” yelled the bystander, standing across Portland Avenue from Renee Good’s lifeless body inside her crashed SUV, video footage of the exchange shows. “No,” an agent replies. “Back up.” “I’m a physician!” “I don’t care.”

"I’m going to pause here just to review: an institution that purports to be a university has told a philosophy professor he is forbidden from teaching Plato." surreal times dailynous.com/2026/01/06/t...

Still thinking about this paper.

“widely regarded as a hallmark paper [on the] carcinogenicity of glyphosate and Roundup...the lack of clarity regarding which parts of the article were authored by Monsanto employees creates uncertainty about the integrity of the conclusions..." www.science.org/content/arti...

Your #highered campus is facing economic uncertainty and aging infrastructure. Decarbonization is not just a climate thing; it’s about resilience, cost management and risk reduction. #acadsky 🔌💡 Get smart: Check out next month's AASHE Decarb. Academy Intro Webinar: www.aashe.org/calendar/cam...

"Because the U.S. entered the UNFCCC with advice and consent of the Senate in 1992, it’s our legal view that it also must be exited using the same process in reciprocation... Letting this lawless move stand could shut the U.S. out of climate diplomacy forever" www.reuters.com/sustainabili...

Pro-tip for faculty concerned about the health of our democracy. Require your students to attend a municipal meeting. They will be pleasantly surprised to discover that they can just show up and that it's (usually) normal people trying to solve problems. It might even become a habit for them!

I have a new paper w Andrea Prat & Jake Spitz. We show that Republican appointed Supreme Court Justices vote in favor of the richer party by over 70% today, as compared to D’s at 30%. In the 1950s and both were at 50%. This strong trend may contribute to rising inequality. www.nber.org/papers/w34643

Humans have emitted 2750 gigatons of CO2 since the industrial revolution from burning fossil fuels and land use change. To put this in perspective, this is more than the (dry) mass of all living things on earth and everything humans have ever built combined:

The team behind Climate.us aims to provide the same kind of reliable, fresh content that used to be available via Climate.gov. We hope you’ll support us. #ClimateForUs

DOGE was A LOT less likely to cancel contracts from companies that donated money to Republicans than companies that donated to Democrats.

It brings me no pleasure to report that my beat — offshore wind power — skyrocketed to the top of new sites today. I just published a scoop about Trump's halt on 5 in-progress wind farms capable of powering 2.7 million homes. Here's a mega🧵 🔗 2nd post is a link to my scoop 🎁 last post is a gift

In support of its extraordinary rollback campaign, the Trump Administration relies again and again on the same six arguments. Each one relies on understating regulatory benefits and overstating costs. legal-planet.org/2025/12/22/g...

Folks - talk to the real estate agents in your life about this at your holiday get-togethers.

The media needs to stop writing headlines like “The CDC changes course on vaccines and autism” and “The CDC defends measles response”. NONE of this is coming from legitimate scientists at the CDC. ALL of it is coming from RFK Jr. Every such headline is causing further harm to public health.

NCAR is quite literally our global mothership. Everyone who works in climate and weather has passed through its doors and benefited from its incredible resources. Dismantling NCAR is like taking a sledgehammer to the keystone holding up our scientific understanding of the planet. Unbelievable.

Attendance at US-based science conferences is bouncing around this year but generally down. #AGU25 has ~10k fewer this year! I explored these trends for @nature.com — including solutions to keep conferences local & productive: www.nature.com/articles/d41... 🧪

Things are pretty bad right now. One way to make them better: run for office! A group called @leadlocally.bsky.social has put together a 6-part training for folks who want to run for office with a climate focus. Walks through all the steps. Super helpful. Don't boo, run!

Such a blessing to have folks in my life who will appreciate these books, and such great books to give them. Thanks @hannahritchie.bsky.social @thewaroncars.bsky.social @drkatemarvel.bsky.social and local bookshop @bookmoon.bsky.social

(1) 🔌💡 #Greensky #climatesky #academicsky Hey climate peeps! I have big news. My wife, Dr. Lisa Kaul, is running for NY State Senate, driven by the urgency of climate action & climate justice. Let me tell you about her. 🧵

"Records indicate that Alvarado [managing director of energy analysis at the American Gas Association] was the only nongovernment official to attend the interviews."

Less than 48 hours after the deadly attack at Sydney's Bondi Beach that left more than a dozen dead, Australian authorities announced proposals for sweeping new gun laws. n.pr/48UTa7g

Here's the short and sinister goal behind this dangerous & irresponsible chemical lobby legislation, in surprisingly simple language: "To amend the Clean Air Act to exclude certain units of facilities from the definition of solid waste incineration unit, and for other purposes." 1/ Translation: ...

Will you be at #AGU2025? Do you work on environmental health or environmental justice? My student is attending AGU for the first time and would love to connect and/or get tips on navigating the conf.

Gang @evernote.bsky.social would now like to charge me an extra $100/year for...AI something something? I just need a place to stick tidbits that are useful for teaching and research across a handful of devices. Low cost and low risk of enshittification a plus. What are your suggestions? #acadsky

25 years ago today, SCOTUS elected George W Bush president of the United States by blocking completion of a voting canvass in Florida. A subsequent canvass by the Associated Press showed that Bush's rival, Al Gore, had won the race in Florida—and thus the contest for the presidency—by 700 votes.

"The worsening situation unfolding in South Carolina shows how the country is still reeling from the resurgence of a preventable, highly contagious disease that has spread beyond a large outbreak in Texas earlier this year and illustrated the consequences of vaccine hesitancy." wapo.st/4aIfp2Q

NSF - Forced reorg - POs down ~ 40% (DRP, most rotators not renewed, retirements) - Forced move (and we have to pack and clean) to a building with no furniture, little to no conference space for panels, inadequate 🛜, …) I personally love the boxes they gave us for packing. “Details matter” 🙃

The Chief Advocacy Officer at the American Clean Power Association was formerly the Senior Vice President of Policy, Economics, and Regulatory Affairs at the American Petroleum Institute, and Executive Vice President of Government Affairs at America’s Natural Gas Alliance. No, really.

Where's the billionaire handing out campus-level decarbonization assessments to any non-profit that wants one?

"If DPU approves Liberty’s plan, gas bills could rise 90 percent by 2030" Seems like sign that the MA legislature should focus on utility reform and clean energy instead of rolling back clean energy efforts. #mapoli

The EPA has removed references about humans causing climate change from its website. No US government website can be trusted for science information.

HEY COOL: IT'S THE @clicabedu.bsky.social ✨CLIMATE BILL TAG EXPLORER✨ climatecabineteducation.org/climate-bill...

"The best proof that heat pumps are working even if it’s cold outside...is the sheer number of cold countries widely adopting the technology. In Europe, Finland, Sweden, Norway and Estonia have the highest share of heat pumps per household..." www.nytimes.com/2025/10/15/c...

If you know someone with a gas stove who has a small apartment, has asthma, or has kids, an induction cooktop might be a good gift. (also if they care about climate) www.nytimes.com/2025/08/25/c...

🎁 BDC’s 2025 Wrapped: Building Decarb Edition looks back at a year during which it became clear that America can make energy more affordable with modern, energy-efficient all-electric buildings: bit.ly/4iCTpII #EnergySky #BuildingDecarb #HeatPump #EnergyAffordability #ClimateSky #GreenSky

Delighted to see some reporting on Cornell's Earth Source Heat project to decarbonize their campus. I would have loved to see some #'s on how much electricity they plan to save with this approach. Regular GSHPs are pretty efficient. 🔌💡 www.canarymedia.com/articles/geo...