As the world quickly approaches 1.5C, researchers have a call in Nature to rethink the utility of temperature targets – and to potentially replace them with more actionable and precise targets around clean energy:

There was an infographic floating around ages ago comparing volumes of extraction of different types of resources. Was there one that compared rare earths to fossil fuels? I found this one for metals... elements.visualcapitalist.com/wp-content/u... #energysky

Last term I tried an experiment: I walked into my Tech and Design Ethics class, admitted that I had *no idea* what to do about ChatGPT - so I would let them figure it out. As in: their first project was to decide and write the ChatGPT policy for the class. Here's what happened:

i post this every september

Was playing around with En-ROADS in preparation for class, and apparently we need to dial everything to 100% to hit 1.5°C? @mitsloansusty.bsky.social @climateinteractive.org

I have an op-ed in @captimes.com on EPA’s proposal to ignore the health harms of air pollution in agency rulemaking. “By abandoning its longstanding practice of monetizing public health benefits of air pollution reductions, [EPA] is tilting its cost–benefit calculus in favor of polluting industry.”

Our @csfh-lab.bsky.social response to EPA's plan to remove human health from its cost/benefit analysis for #airpollution @globalecoguy.bsky.social @katharinehayhoe.com @maibached.bsky.social @jonlevybu.bsky.social @yalee360.bsky.social @davidfrum.bsky.social captimes.com/opinion/gues...

2025 was the third hottest year ever. Trend is worrying and faster than expected a few years ago. Only when we stop burning coal, oil and gas, temperature will stop rising. www.ecmwf.int/en/about/med...

A new study finds that almost 47 million people in the contiguous United States, many in cities, live within about a mile of at least one piece of fossil fuel infrastructure—and that it could be putting their health at risk. Co-authors include @jjbuonocore.bsky.social & @marydwillis.bsky.social.

People will get sicker. More people will have heart attacks and lung disease and other health challenges because of pollution. People’s lives will get worse, and shorter. People you know. Maybe me. Maybe you.

I mean, what do you say any more?

I agree!! This is like the public health version of saying the social cost of carbon is $0 @jonlevybu.bsky.social 🛟. 🔌💡

The Trump administration is proposing to value the cost of air pollution deaths at $0. It’s no wonder that Trump’s EPA would take this step: avoided premature mortality is regularly the largest category of monetized benefits used to justify Clean Air Act regulation.

I know it’s overwhelming to look squarely at the moment we’re living in, knowing that we have to start phasing out fossil fuels now, but reality bites. In any case, it is TRAGIC that so many supposed climate people are producing discourse that encourages more delay instead of strategizing to win.

Unfortunately this skeet aged well…

Listened to this while doing weatherization work (the irony, I know) but it looks like I’ll have to revamp a lecture or two, again, thanks to this episode. I think this will now make three @volts.wtf episodes in my class this spring…

New preprint up assessing the air quality and health benefits that could have been possible under the Inflation Reduction Act. Huge effort here with Erin Mayfield, Jamil Farbes, @jessedjenkins.com, Ryan Jones, Tracey Holloway, and @jonathanpatz.bsky.social.

Anyone else at #AGU25 notice that there’s way less GeoHealth than last year, and I think a lot more geoengineering (both SRM/SAI and GHG reduction type)? @doctorvive.bsky.social ? @costasamaras.com ? Am I hallucinating?

On the 10th Anniversary of the Paris Agreement, you’re going to hear a lot about the progress we’ve made — people saying we “are” heading to 2.5 degrees heating instead of four. I deeply regret to tell you that this is complacent misinformation. 🧵

MPH students in Health Care Finance 101 learn in the first 5 minutes of the first class, that the cheapest, most efficient, & fairest possible finance model is a single payer system. Then the professor says: we will spend the next 3 months discussing why this will not be allowed to happen in the US.

@jjbuonocore.bsky.social talks to cbsnews.com about his #NewStudy revealing that nearly 47 million Americans live within about a mile of #FossilFuel infrastructure. The study is a key first step toward better understanding potential associated #health effects:

We fixed climate change everybody!

NEW STUDY: More than 14% of people in the contiguous United States reside within a mile of at least one piece of #FossilFuel infrastructure. Authors: @jjbuonocore.bsky.social & @marydwillis.bsky.social. @bostonu.bsky.social

@marydwillis.bsky.social and I published a paper published today in Environmental Research Letters! iopscience.iop.org/article/10.1... We found that about 46.6 million people in the US, or about 14.1% of the US population, live within a mile of a piece of energy infrastructure. Why do we care? 🛟 |💡🔌

It is almost like that!!

NEW STUDY: More than 14% of people in the contiguous United States reside within a mile of at least one piece of #FossilFuel infrastructure. Authors: @jjbuonocore.bsky.social & @marydwillis.bsky.social. @bostonu.bsky.social Story: www.bu.edu/igs/2025/11/...#FossilFuel

This new @amnesty.org study is damning. A quarter of the world’s population lives within a 3 mile radius if a fossil fuel project. That’s 2b people. We must end this era of greed and harm. www.downtoearth.org.in/amp/story/cl...

Our new paper! Building electrification can be good for health too – the more renewables on the grid, the better it is. 🛟 | #energysky doi.org/10.1016/j.jo... ... with @joeallenjoe.bsky.social and other lovely people who aren't on here

NREL is a national treasure 💡🔌 maps.nrel.gov/slope/data-v...

I don't think we should talk about climate change anymore, we should talk about kitchen-table issues. Like how climate change will destroy your kitchen table and everything else you have

With 1 of 5ish deaths worldwide due to air pollution, largely from fossil fuels, it seems like it'd benefit present day well-being of a few people if a wee bit of money was left in the "Energy Transition" bucket... www.sciencedirect.com/science/arti...

Keep this in mind when people claim cars mean business — closing Central Madrid to cars over holidays resulted in a 9.5% boost in retail spending on its main shopping street: STUDY. There was also a 71% drop in air pollution. Via @carltonreid.com in @forbes.com. #citymakingmath #citiesforpeople

Is the EIA US Energy Atlas no longer publicly available? www.eia.gov/maps/ #energysky

Here's something that's not talked about enough The air pollution from burning fossil fuels kills an estimated 10 million people a year 1 in 6 deaths is caused by fossil fuels www.sciencedirect.com/science/arti...

This seems pretty relevant for #climatesky folks... theconversation.com/winning-with...

Climate science is facing significant opposition in the US. Today we are launching the collaborative Strengthening Trust in Climate Scientists Megastudy 📈 Find out more and join our efforts 👇🧵

Proud to be part of the Expert Working Group on Climate Change and Health that just put together a report summarizing the evidence of health harms of climate change to date. Report is here: zenodo.org/records/1728... 🛟 #climatesky

This is why we fund scientists to study things like oyster slobber even if you don’t think it sounds important

I would like to rebrand climate change as "fossil fuels taking away your temperature freedom" #greensky, 🔌💡 | 🛟 #climatesky How do I do this? Do I submit a formal application somewhere?

Another expert review of the science behind the endangerment finding, this time from health professionals. they conclude that CO2 emissions "pose a clear and indisputable danger to human health and well-being." drive.google.com/fil...

breaking from me: the trump administration just suffered its first major loss in court over its onslaught on offshore wind the revolution wind project can now resume construction after a federal judge found its developer orsted was likely to win against the trump order to stop work @heatmap.news

I can confirm the Nextgen Acelas are really nice.

The Science of Delay The lesson of PFAS is the same lesson we should have learned from lead, asbestos, and air pollution: if we wait until the evidence is definitive, we’ve waited too long.

Our comment on the DOE CWG report is done. It tips the scales at 439 pages, approx. 3x longer than the DOE report. This is related to Brandolini's law: The amount of energy needed to refute bullshit is an order of magnitude bigger than that needed to produce it. Example: refuting one sentence.

My lab's been attacked by an anti-wind group and their lawyers. They threatened the science funding of my whole university, to shut me and my undergraduate research assistants up. NYT just covered it. 1/n www.nytimes.com/2025/08/25/c...

Costa also issuing the same warning

This is fucking crazy! The offshore wind farm is almost finished!

Affordability is an issue everywhere, so everywhere and anyone can benefit from improved bicycle infrastructure. #bikes