Nurses are champions. So happy to see Katie become that kind of champ too.

Indeed! “Global warming is an air quality issue, a public safety issue and a quality-of-life issue.” It’s also a health and prosperity issue. The end of fossil fuels will be a new beginning for health and prosperity. @sammyroth.bsky.social

If you live in California like me, it's election season. I'm voting for 3 climate champions: Tom Steyer for Governor, Josh Fryday for Lt. Governor and Ben Allen for Insurance Commissioner. Get out there and vote!

Want to have a stroke? Me neither. I recommend avoiding air pollution to the extent possible. Best course of action? Advocate for phasing out fossil fuels ASAP. @docsforclimate.bsky.social @gchalliance.bsky.social @fossiltreaty.bsky.social @who.int

I spoke with rising climate+health expert Taran Deol about the Santa Marta fossil fuel phase-out conference. If you're interested in why we're urging all nations to hold a national dialogue on the health benefits of phase-out, read on... @gchalliance.bsky.social @lancetcountdown.bsky.social

Making America Unhealthy Again. Mercury emissions from coal-burning plants increased by roughly 9 percent in 2025, compared with a year earlier. @docsforclimate.bsky.social

The benefits of respecting science. 😂😂😂

Lists identifying the “best” scientists of any type are obviously flawed, but I’m delighted to appear on the same list of social scientists as UCSD psychologist Don Norman, my first psych prof. His humanity and curiosity awakened in me the desire to serve—through science. @mason4c.bsky.social

Reclaim America 2050

Imagine batteries delivering as much power as 12 nuclear reactors. No imagination needed actually. You can see them in action right now in California. @mason4c.bsky.social @docsforclimate.bsky.social

Happy Mother’s Day!

We had an excellent panel on #law & #regulation @icon-s.bsky.social Israeli conference, covering #AI, agreement-based regulation & surveillance technology. You can read my paper on the agreement-based nature of regulation @ssrn.bsky.social (forthcoming 31 Harv. Negot. L. Rev): tinyurl.com/34y2b85h

Breaking news: Indiana University plant microbiologist Roger Innes has been locked out of his laboratory by the school in response to a request by one of his federal funders. The move comes after Innes complained about the government’s prosecution of Chinese postdocs. https://scim.ag/4tsDqRr

In 23 states, including five presidential swing states, candidates who have denied election results are running for offices that have a direct role in certifying future elections, a new report finds.

NEW ANALYSIS: What's going on in Spain? Spain's wholesale electricity price in early 2026: €44/MWh. Italy: €127. Germany: €96. UK: €103. Wind+solar now deliver 44% of generation. Gas sets the price in just 9% of hours, down from 55% in 2022. Full analysis: janrosenow.substack.com/p/spain-just...

" #climate change denial is collectively reinforced by our governments and politicians, who promote the cycle of “implicatory denial” as a way to ensure social cohesion and stability" - Kari Marie Norgaard www.sydney.edu.au/sydney-envir...

Hungary’s parliament sings “Ode to Joy” — the anthem of Europe — after Péter Magyar is sworn in as prime minister. Hungary is once again a proud member of the European Union.

The NRA buys off Congress. No action on guns. The oil industry buys off Congress. No action on climate. Insurance companies buy off Congress. No action on health care. The list goes on and on. Money in politics is the root of our dysfunction.

"Walking away could seem like the least bad option. As a political matter, Trump may well feel he has a better chance of riding out defeat than a much larger war. Defeat for the U.S. is thus not only possible but likely. Here is what defeat looks like." www.theatlantic.com/internationa...

Travesty, American style.

Battery storage will change the global energy system forever. Battery pack price: down 45% in 2025, first time below $100/kWh Battery storage deployment: ~250 GWh, up 46% year-on-year

Trees are our least demanding best friends. Unlike our most demanding best friends, our communities would benefit from a lot more of them.

You say you want a (clean energy) revolution? Well, you know, it’ll change the world.

💯

“Officers eat last.” BAM!

Last week in Santa Marta, the Zero Carbon Prosperity working group had a lively debate about the nature of prosperity. We decided “collective prosperity” is the goal, and this is the working definition we ginned up….

China ate our lunch (while we were wasting our time being fossil fools). Good for them, and the world.

Fossil fuel phase-out is not only possible, it’s necessary for humanity to continue to prosper over the next decades, centuries, & millennium. Thankfully, Ministers from 60 nations who gathered last week in Santa Marta, Colombia, understand that and are beginning to work towards phase-out.

If you want to better understand how public health research is the key to improving human health—making EVERYONE healthier—read this brief, insightful essay. When the opportunity arises, thank a public health professional for all they are doing—for us. @apha.org @who.int

Covering the terrible actions of the Trump regime is winning lots of people Pulitzer Prizes.

I'm delighted that Dr. @bfrist.bsky.social is shining a light on the harm that air pollution does to our brains. I spend last week in Santa Marta, Colombia with 60 government ministers & others at the first-ever global convening on fossil fuel phase-out. This was one of the key points I too made.

Big shout-out to Team @climateone.org for raising more $ thus far than Team Climate & Health to support the upcoming @climateride.bsky.social Green Fondo in NoCal on May 16/17. It's not too late to make a donation in the name of our team captain, @howardfrumkin.bsky.social, for this great cause.

I’m not a California voter, but if I was I would be voting for Tom Steyer—a genuine climate hawk.

I once gave a lecture about climate change public opinion to judges for the Climate Judiciary Project. My university recently received an FOIA request for my emails & documents related to the lecture. Today, I learned my university is also working to make judges skeptical of climate science. Sigh.

I'm eager to see the film Trump doesn't want anyone to see: Democracy Under Siege. It's being offered for free viewing today and tomorrow from the website demoscracyundersiegedoc.org, although currently the website won't let me connect. @anntelnaes.bsky.social @lauranix.bsky.social

Justice can only be served when the CEO and other senior executives who perpetrated these heinous crimes are tried.

Fossil fuel companies are the best-represented group at the UN conferences on climate change, with more lobbyists attending than representatives from any nation. This year, a new global conference began with the mission of outgrowing fossil fuels. No fossil lobbyists allowed. US did not attend.

This rate of change in methane gas use is insane. 25% decrease in one year. "That growth in battery capacity managed to shift about three times as much power from the daytime...It has caused the need for gas-fired generation to drop by more than a quarter from the same time last year"

Amsterdam is one of the world's most popular cities. And now, it's even better. The city’s fossil fuel ad ban is now in effect - making it the first capital globally to take on polluter ads. 🎉 The story. 🧵 1/5 Wish your city was like Amsterdam? 👇 www.badverts.org/campaign-upd...

@danamilbank.bsky.social it’s good to have you back. I was at an international conference earlier this week and heard many government ministers (and senior scientists) make comments that align with your thesis. The fear fever is breaking and the world is moving on.

That would be one good approach to warning labels on gasoline pumps. I’m eager to hear about other possible approaches. It’s open mic time. Anyone care to share their suggestions?

Hey @ethicaldisruption.bsky.social I suspect you will have us at hello. Please say hello and share your thoughts with us.

This brief essay about the profound and widespread health harms of environmental exposure to lead is a must-read for all who care about human health. It’s also directly relevant to why fossil fuel phase-out is a human health imperative. @gchalliance.bsky.social @docsforclimate.bsky.social

Banning—or at least heavily regulating—fossil fuel ads is a great idea. Warning labels on gas pumps are a great idea too. Fossil fuel air pollution is one of the world’s leading preventable causes of death and ill-health. It’s time to get serious about preventing those health harms.

@climhealthsoc.bsky.social Welcome to BlueSky. Great to see you here. @docsforclimate.bsky.social @gchalliance.bsky.social

Liberation lifts the spirits. Let’s all free our minds of the “can’t do” mentality placed there by five decades of Big Oil disinformation and greenwashing. “You tell me it’s the institution, well you know, you’ve got to free your mind instead.” @fossiltreaty.bsky.social

Celebrating America's birthday with trump... is like celebrating Lincoln's birthday with John Wilkes-Booth.

+1

@daisydunne.carbonbrief.org of @carbonbrief.org produced an excellent hot take on the fossil fuel phase out convening in Santa Marta, Colombia. I encourage you to read it because the convening was an important step toward the end of fossil fuels.