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climatefran.bsky.social
ClimateFran
@climatefran.bsky.social
14K followers 900 following 500 posts
professor @UCDavis | climate change economist / scientist / general nerd | White House CEA 2022-23
https://franmoore.faculty.ucdavis.edu/
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climatefran.bsky.social
Fascinating - COVID 19 lockdowns reduced NOx emissions (less car and plane traffic), limiting OH formation and slowing the rate of CH4 removal. This, plus elevated wetland emissions, accounts for the 2020-2022 methane spike.
February 9, 2026 at 6:14 AM
Reposted by ClimateFran
gsagostini.bsky.social
Our paper “Inferring fine-grained migration patterns across the United States” is now out in @natcomms.nature.com! We released a new, highly granular migration dataset. 1/9
February 5, 2026 at 5:30 PM
Reposted by ClimateFran
hausfath.bsky.social
With cold outbreaks sweeping parts of the US, some have argued that climate change is to blame. But the proposed mechanism remains quite controversial in the scientific community, and the number of extreme cold events have been decreasing almost everywhere: www.theclimatebrink....
February 2, 2026 at 4:24 PM
Reposted by ClimateFran
davidho.bsky.social
I'd like to report a y-axis crime…
This infographic from The White House, titled "U.S. STEEL PRODUCTION INCREASES," uses a bar chart to compare total production in 2024 versus 2025, but it employs a heavily truncated y-axis to exaggerate the appearance of growth. The vertical axis begins at 80.2 million tonnes (Mt) rather than zero, which makes the 2025 green bar (representing approximately 81.8 Mt) appear roughly five times taller than the 2024 red bar (representing approximately 80.9 Mt). In reality, this indicates a modest increase of approximately 1.1%, though the visual presentation suggests a massive, multi-fold surge in production.
February 2, 2026 at 8:45 PM
climatefran.bsky.social
Shifting-baselines in action
www.pnas.org/doi/10.1073/...

Also, h/t xkcd: xkcd.com/1321/
February 1, 2026 at 9:58 PM
climatefran.bsky.social
Bad science, bad economics AND illeagal
www.nytimes.com/2026/01/30/c...
A Secret Panel to Question Climate Science Was Unlawful, Judge Rules
www.nytimes.com
January 31, 2026 at 1:20 AM
Reposted by ClimateFran
peterthorne.bsky.social
New discussion paper just dropped that’s taken shall we say a little work to get this far … essd.copernicus.org/preprints/es... please be kind. Not on an at all sensitive topic in the slightest.
How well can we quantify when 1.5 °C of global warming has been exceeded?
Abstract. Parties to the 2015 Paris Agreement agreed to limit the long-term increase in global average temperature to well below 2 °C and pursue efforts to keep temperatures below 1.5 °C relative to p...
essd.copernicus.org
January 28, 2026 at 8:48 AM
climatefran.bsky.social
EPA's arguments for ignoring the benefits of air pollution regulation in a cost-benefit analysis of air pollution regulation don't hold up. Maybe obvious, but still bears repeating.
www.resources.org/common-resou...
If/Then: Ignoring the Benefits of Air Pollution Regulations Will Lead to Worse Policy Decisions
If the US Environmental Protection Agency doesn’t count the monetary benefits of regulations, then federal actions are likely to lead to worse policy outcomes for public health and welfare.
www.resources.org
January 28, 2026 at 5:11 AM
Reposted by ClimateFran
zacklabe.com
Very exciting to share that @climatecentral.org is hiring a Climate Data Scientist to join a new climate services effort focused on advancing predictions of risks and hazards on seasonal-to-decadal timescales. The application closes on February 9, 2026 at 5pm ET, & the description can be found here:
Climate Data Scientist | Climate Central
Climate Central is seeking a highly-skilled Climate Data Scientist to join our team. Reporting to the Vice President for Science, the scientist will be part of a new initiative in climate services to ...
www.climatecentral.org
January 26, 2026 at 5:36 PM
Reposted by ClimateFran
leafwax.bsky.social
Really excited to see this paper out!! Led by @vtcoop.bsky.social we show that if you use cold and warm paleoclimates together, you can reduce uncertainty in Earth's climate sensitivity by quantifying the pattern effect and more precisely constrain future climate change www.pnas.org/doi/10.1073/...
Paleoclimate pattern effects help constrain climate sensitivity and 21st-century warming | PNAS
Paleoclimates provide examples of past climate change that inform estimates of modern warming from greenhouse-gas emissions, known as Earth’s clima...
www.pnas.org
January 23, 2026 at 3:36 PM
Reposted by ClimateFran
bistline.bsky.social
Texas power buildout in one picture: wind (green) laid the foundation, solar (yellow) is the new wave, and energy storage (purple) is clustering around load. This is the grid transition, mapped.
January 21, 2026 at 4:30 PM
Reposted by ClimateFran
transitionalform.bsky.social
Our paper on the mysterious Devonian organism Prototaxites has now finally been published! See the paper here (www.science.org/doi/10.1126/...) and our explainer thread below!
Prototaxites reconstruction by Matt Humpage
January 21, 2026 at 7:25 PM
climatefran.bsky.social
How do you make rollback of clean air regulations pass a cost-benefit test? Don't count any of the benefits!

People value their health and don't like breathing poisonous air. But Trump's EPA doesn't care.

www.nytimes.com/2026/01/21/c...
Trump’s E.P.A. Has Put a Value on Human Life: Zero Dollars
www.nytimes.com
January 21, 2026 at 8:42 PM
Reposted by ClimateFran
sjroth.bsky.social
📢 Call for Papers! The 9th Annual LSE/Imperial Workshop on Environmental Econ. will be held in London June 8-9
✅ Submissions by Feb 1
📄 Full papers only (no abstracts)
🎤 Keynote: Prof. @rmetcalfe.bsky.social

🔗 more details here: www.lse.ac.uk/geography-an...
9th Annual LSE/Imperial Workshop on Environmental Economics
Information about the LSE Department of Geography and Environment's Environmental Economics Workshop.
www.lse.ac.uk
January 8, 2026 at 1:58 PM
Reposted by ClimateFran
martynwendell.bsky.social
Remarkable speech from Mark Carney today at Davos, worth reading in full. Thanks to Paul Wells for transcribing (and translating the French portion): paulwells.substack.com/p/the-carney...
The Carney doctrine
Open comment thread on the PM's Davos speech
paulwells.substack.com
January 20, 2026 at 6:08 PM
Reposted by ClimateFran
stevekoller.bsky.social
Neptune Flood (subsidiary of NYSE:NP) is actively working to privatize the NFIP. Company leadership has communicated their work and this goal, in line with Project 2025, to the White House.

Privatization would have big implications for flood-prone communities.

www.nytimes.com/2026/01/15/c...
How One Company Is Pushing a Private Takeover of Flood Insurance
www.nytimes.com
January 15, 2026 at 5:28 PM
Reposted by ClimateFran
adambonica.bsky.social
If there's one empirical insight I'd want everyone to understand about American politics, it's this:

America's problems are solved problems. Just not here.

What would change if the US simply matched the average of 31 peer democracies? Not Denmark or Norway. Just the middle of the pack. 🧵
Screenshot of a data visualization titled “The Cost of American Exceptionalism,” subtitled “What would change if the U.S. matched the OECD average?” The page explains that each card shows how outcomes would change if the U.S. matched the average of 31 peer democracies. Below, a section labeled “Economy & Inequality” displays eight cards comparing U.S. figures to OECD averages. Highlights include: +$19K per household per year in redistributed income and +$96K in redistributed wealth if the top 1% matched OECD shares; a 71% lower CEO-to-worker pay ratio (from 354× to 101×); 50 million more workers with union coverage; 26 million more people with health insurance; $2.1 trillion saved annually in healthcare spending; $691 less per person per year in prescription drug costs; and intergenerational economic mobility being twice as high. Each card shows the U.S. value alongside the OECD average.
January 12, 2026 at 9:36 PM
Reposted by ClimateFran
gmcd.bsky.social
I see a lot of econ/socsci Bluesky asking for AI starter advice. IMO the highest impact, low cost tweak to your workflow is training an AI to follow *your* coding/writing prefs & habits.

Literally, tell Claude: "Look at <XYZ dirs>. ID common themes, styles & conventions. Write them to a .md file."
January 12, 2026 at 9:14 PM
climatefran.bsky.social
Everyone likes a green energy subsidy, but taxing or regulation of fossil fuels needed to achieve ambitious decarbonization goals

www.nature.com/articles/s41...
Client Challenge
www.nature.com
January 9, 2026 at 6:03 PM
climatefran.bsky.social
Very cool stuff - applying AI weather modeling for decision-relevant seasonal information for Indian farmers. Predicting monsoon onset with a 4 week lead time

www.nature.com/articles/s41...
Client Challenge
www.nature.com
January 9, 2026 at 5:43 PM
Reposted by ClimateFran
bloomberg.com
Wall Street’s biggest banks made more money financing green projects than they did from working with fossil fuel companies for a fourth straight year, even as they faced ongoing pressure to pull back from the business
Banks Notch Higher Fees From Green Bonds Than Fossil Fuel Debt
Wall Street’s biggest banks made more money financing green projects than they did from working with fossil fuel companies for a fourth straight year, even as they faced ongoing pressure to pull back from the business.
bloom.bg
January 2, 2026 at 4:01 PM
Reposted by ClimateFran
kylewalker.bsky.social
2025 was a massive year for me as an R developer.

This past year I've branched out and focused on bringing interfaces to some of the most exciting geospatial technologies to the R community.

Here's a summary:
December 31, 2025 at 5:30 PM
Reposted by ClimateFran
dfroomkin.bsky.social
My new article with @cary-coglianese.bsky.social, titled "Loper Bright's Disingenuity," has been published in the University of Pennsylvania Law Review. We argue that, even as the Loper Bright decision claimed to overrule Chevron, it preserved Chevron's core.

pennlawreview.com/2025/12/23/l...
Loper Bright prompted a tidal wave of reaction throughout the legal community when the Supreme Court announced it was overruling Chevron, the most frequently cited Court decision in administrative law. But Loper Bright cannot mean what it says. This article identifies three respects in which the majority opinion’s claim to have overruled Chevron distorts the real substance of the Court’s logic. First, we apply Loper Bright’s framework to the facts of Chevron and show that it would have produced the same outcome—if nothing else, an exceedingly curious result if Chevron were indeed overturned. Second, even as applied to other cases, the Loper Bright framework does not truly depart from the Chevron framework. Chevron’s premise was that Congress had delegated the authority to interpret an ambiguous statutory term in an agency’s enabling statute to the agency. Loper Bright may eschew the word “deference” but without changing the underlying analysis. We show that this kind of wordplay is of little value in making institutional decisions about the allocation of authority. Finally, the very craft of the Loper Bright opinion betrays the perils of the exercise that Loper Bright demands of reviewing courts. Loper Bright instructs judges to identify the “best reading” of administrative statutes, suggesting that an even-handed exercise in recovering semantic meaning can identify extant lines of authority in the administrative state. But the decision rests on an interpretation of the Administrative Procedure Act that is itself selective and slipshod. Ultimately, Loper Bright’s formalist rhetoric turns out to mask what is going on under the hood. When judges substitute their views of what is “best” for those of agencies, arguments about statutory meaning can quickly succumb to choices about policy. Avoiding such an outcome, of course, was one of Chevron’s core aims.
December 29, 2025 at 2:22 PM
climatefran.bsky.social
A holiday reminder for anyone who's ever been weather delayed at the Denver airport of the essential work done by @ncar-ucar.bsky.social
ncar-ucar.bsky.social NSF NCAR & UCAR @ncar-ucar.bsky.social · Dec 24
🎉 We signed up for another 5 yrs of working w/ @DENAirport to keep travelers safe when winter wx threatens their plans. ❄️ ✈️

Our researchers have developed advanced 💻 models and AI techniques to forecast snow and ice at specific points on runways.

https://bit.ly/3YyQEig

📸 Courtesy DIA
A plane on a snowy runway. Photograph provided courtesy of Denver International Airport.
December 24, 2025 at 5:00 PM
climatefran.bsky.social
Proud to support the public education mission of the UC 💙💛
"cost-benefit calculations show internal rates of return of 26 percent for the marginal students themselves, 16 percent for society (which must pay for the additional education), and 7 percent for the government budget."
December 24, 2025 at 4:56 PM