David Sacerdote
@davidsacerdote.bsky.social
Software engineer.
Mostly talk climate and related politics.
Mostly talk climate and related politics.
Reposted by David Sacerdote
This pisses me off though tbh. Unfreezing fuel duty now could have been used to fund improvements in public transport infrastructure. Adding cost per mile to EVs when adoption is still low will be discouraging, particularly for those without home charging options
www.theguardian.com/politics/202...
www.theguardian.com/politics/202...
Reeves freezes fuel duty for now as she confirms 3p-a-mile electric vehicle charge
Rishi Sunak’s ‘temporary’ 5p-a-litre cut to be reversed in stages from next September in effort to keep EVs attractive
www.theguardian.com
November 26, 2025 at 5:09 PM
This pisses me off though tbh. Unfreezing fuel duty now could have been used to fund improvements in public transport infrastructure. Adding cost per mile to EVs when adoption is still low will be discouraging, particularly for those without home charging options
www.theguardian.com/politics/202...
www.theguardian.com/politics/202...
Reposted by David Sacerdote
The Trump regime wants to make us less healthy and more dead.
Trump EPA moves to abandon rule that sets tough standards for deadly soot pollution
The Trump administration is seeking to abandon a rule that sets tough standards for deadly soot pollution, arguing that the Biden administration did not have authority to set the tighter standard on p...
www.independent.co.uk
November 26, 2025 at 4:01 PM
The Trump regime wants to make us less healthy and more dead.
Reposted by David Sacerdote
This seems like a play to cut NPS profitability to make it easier to open these lands up to extraction. 35% of NPS visitors are from overseas
US triples national park fee for non-residents, amid ‘new’ fee for Americans
Interior department, which has defunded conservation organizations, claims fee hike is for conservation
www.theguardian.com
November 26, 2025 at 2:27 PM
This seems like a play to cut NPS profitability to make it easier to open these lands up to extraction. 35% of NPS visitors are from overseas
Reposted by David Sacerdote
We found that if every car had these driver assist features, the U.S. could prevent 1.6 million total car crashes (including about 7,200 fatal crashes), and save more than $260 billion annually in costs to society www.sciencedirect.com/science/arti...
November 26, 2025 at 1:14 PM
We found that if every car had these driver assist features, the U.S. could prevent 1.6 million total car crashes (including about 7,200 fatal crashes), and save more than $260 billion annually in costs to society www.sciencedirect.com/science/arti...
Reposted by David Sacerdote
It’s official: The Hochul administration has appealed the court ruling against it on cap & invest, arguing that it would be impossible to issue climate law regulations by the judge’s February deadline. iapps.courts.state.ny.us/nyscef/Docum...
![B. Promulgation of Regulations by the Court’s Deadline is
Impossible
It is impossible for the Department to comply with the Court’s deadline
because it cannot promulgate compliant regulations––a mammoth task that,
as noted, entails regulating emissions across large swaths of New York’s
economy––by February 6, 2026. First, “promulgate” generally means
publication of a final rule. Although SAPA uses the term “adopt” for the
completion of the rulemaking process, it also provides for judicial review once
a rule is finalized and states that rules shall be “promulgated in substantial
compliance” with SAPA’s procedures but that failure to properly notify a
person does not “invalidate any rule promulgated hereunder” (SAPA § 202[8]).
Thus, SAPA contemplates that a rule is “promulgated” only if the full
procedures laid out in SAPA §§ 202-203 have been followed.](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:64drjustsrvsrcl2a2n2jnyf/bafkreigbu2tmb7bvd3iaxmsqr6ggegncr5ywfu7bdcucym623rtvogdsoq@jpeg)
![C. Publication of Proposed Rulemaking by the Court’s Deadline is
Impossible
Even if the Court only intended to order the Department to publish
proposed, rather than final, regulations by February 6, 2026, compliance would
still be impossible. As explained in the accompanying affirmations, the
Department cannot, in good faith, propose regulations without foundational
modeling and updated assessments of economic pressures in light of the
current federal and State regulatory landscape (Michael Sheehan affirmation
[Sheehan aff] at ¶ X; Vladimir Gutman-Britten affirmation [Gutman-Britten
aff] at ¶¶ 3-6). The Department relies on data analysis and modeling conducted
by the Authority, which will take, at minimum, four months to complete
(Gutman-Britten aff at ¶ 4). Notably, the Authority must update its models to
reflect the forecasts and conclusions in the recently released draft State Energy
Plan (id. at ¶ 6). These include anticipated delays in clean energy rollouts,
changes in State populations, and other factors that are significantly different
from the assumptions upon which the scoping plan was based (id.). Four
months is the minimum time it will take to simply create the models, but that](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:64drjustsrvsrcl2a2n2jnyf/bafkreidaoztkarn5kpbdgd5xv5vmzxnstzh2fypehwjvtiz4mxqeospapm@jpeg)
November 26, 2025 at 1:29 PM
It’s official: The Hochul administration has appealed the court ruling against it on cap & invest, arguing that it would be impossible to issue climate law regulations by the judge’s February deadline. iapps.courts.state.ny.us/nyscef/Docum...
Reposted by David Sacerdote
Today I’m recommending that NYC’s pension fund boards drop BlackRock and 2 other (out of 49) public markets asset managers due to inadequate decarbonization plans.
Climate risk is financial risk – we need asset managers who will invest responsibly.🧵
www.bloomberg.com/news/article...
Climate risk is financial risk – we need asset managers who will invest responsibly.🧵
www.bloomberg.com/news/article...
NYC’s Lander Recommends Dropping $42 Billion BlackRock Mandate
New York City Comptroller Brad Lander is urging three of the city’s pension funds to drop BlackRock Inc. because of “inadequate” climate plans, the latest move to penalize investment firms for failing...
www.bloomberg.com
November 26, 2025 at 1:49 PM
Today I’m recommending that NYC’s pension fund boards drop BlackRock and 2 other (out of 49) public markets asset managers due to inadequate decarbonization plans.
Climate risk is financial risk – we need asset managers who will invest responsibly.🧵
www.bloomberg.com/news/article...
Climate risk is financial risk – we need asset managers who will invest responsibly.🧵
www.bloomberg.com/news/article...
Reposted by David Sacerdote
Be the first to introduce heat pumps in these niches, like having a 35 gallon hot water tank, and enjoy a monopoly for a bit
www.sfchronicle.com/bayarea/arti...
www.sfchronicle.com/bayarea/arti...
Bay Area considers easing gas appliance ban with new homeowner exemptions
Pollution regulators with the Bay Area Air District could soften rules that will require stores to replace natural gas water heaters and furnaces with more environmentally friendly models.
www.sfchronicle.com
November 26, 2025 at 2:26 AM
Be the first to introduce heat pumps in these niches, like having a 35 gallon hot water tank, and enjoy a monopoly for a bit
www.sfchronicle.com/bayarea/arti...
www.sfchronicle.com/bayarea/arti...
Reposted by David Sacerdote
“‘There is a world in which these nations [that support a fossil fuel phaseout] band together and create a global trading bloc that could essentially force the petrostates to start decarbonizing … it could be a way forward.”
www.motherjones.com/environment/...
www.motherjones.com/environment/...
Can the world address climate change without the US?
Even with Trump's America absent, COP30 ended in a weak deal—and a win for petrostates.
www.motherjones.com
November 26, 2025 at 12:53 PM
“‘There is a world in which these nations [that support a fossil fuel phaseout] band together and create a global trading bloc that could essentially force the petrostates to start decarbonizing … it could be a way forward.”
www.motherjones.com/environment/...
www.motherjones.com/environment/...
Reposted by David Sacerdote
The UK government has again frozen fuel duty but will charge EV owners by the mile. Hard to see this as anything other than an attempt to suppress EV adoption.
November 26, 2025 at 12:54 PM
The UK government has again frozen fuel duty but will charge EV owners by the mile. Hard to see this as anything other than an attempt to suppress EV adoption.
Reposted by David Sacerdote
Landmark move: New York City's comptroller @bradlander.bsky.social, with hundreds of billions under his control, recommends dropping investment giant Blackrock because they won't reckon with climate change.
www.bloomberg.com/news/article...
www.bloomberg.com/news/article...
NYC’s Lander Recommends Dropping $42 Billion BlackRock Mandate
New York City Comptroller Brad Lander is urging three of the city’s pension funds to drop BlackRock Inc. because of “inadequate” climate plans, the latest move to penalize investment firms for failing...
www.bloomberg.com
November 26, 2025 at 1:08 PM
Landmark move: New York City's comptroller @bradlander.bsky.social, with hundreds of billions under his control, recommends dropping investment giant Blackrock because they won't reckon with climate change.
www.bloomberg.com/news/article...
www.bloomberg.com/news/article...
Reposted by David Sacerdote
Move over, Spotify... my @inaturalist.bsky.social year in review is here!
www.inaturalist.org/stats/2025/e...
www.inaturalist.org/stats/2025/e...
November 26, 2025 at 6:31 AM
Move over, Spotify... my @inaturalist.bsky.social year in review is here!
www.inaturalist.org/stats/2025/e...
www.inaturalist.org/stats/2025/e...
A lot of the monarch butterflies around Santa Cruz now have trackers on them, and there is an app to see where they are.
Android
play.google.com/store/apps/d...
iPhone
apps.apple.com/us/app/proje...
Android
play.google.com/store/apps/d...
iPhone
apps.apple.com/us/app/proje...
Project Monarch Science App - App Store
Download Project Monarch Science by Cellular Tracking Technologies on the App Store. See screenshots, ratings and reviews, user tips, and more games like…
apps.apple.com
November 26, 2025 at 4:54 AM
A lot of the monarch butterflies around Santa Cruz now have trackers on them, and there is an app to see where they are.
Android
play.google.com/store/apps/d...
iPhone
apps.apple.com/us/app/proje...
Android
play.google.com/store/apps/d...
iPhone
apps.apple.com/us/app/proje...
Reposted by David Sacerdote
West Point plaque: "Our code of military obedience requires that, should orders and the law ever conflict, our officers must obey the law."
November 25, 2025 at 10:40 PM
West Point plaque: "Our code of military obedience requires that, should orders and the law ever conflict, our officers must obey the law."
Be the first to introduce heat pumps in these niches, like having a 35 gallon hot water tank, and enjoy a monopoly for a bit
www.sfchronicle.com/bayarea/arti...
www.sfchronicle.com/bayarea/arti...
Bay Area considers easing gas appliance ban with new homeowner exemptions
Pollution regulators with the Bay Area Air District could soften rules that will require stores to replace natural gas water heaters and furnaces with more environmentally friendly models.
www.sfchronicle.com
November 26, 2025 at 2:26 AM
Be the first to introduce heat pumps in these niches, like having a 35 gallon hot water tank, and enjoy a monopoly for a bit
www.sfchronicle.com/bayarea/arti...
www.sfchronicle.com/bayarea/arti...
Reposted by David Sacerdote
I’ve heard many stories of how ICE is not following the law or honoring due process.
I'm at the Tacoma ICE facility to come see for myself and hold ICE accountable. From my visit, it was abundantly clear that ICE is lying.
I'm at the Tacoma ICE facility to come see for myself and hold ICE accountable. From my visit, it was abundantly clear that ICE is lying.
Rep. Salinas visits Tacoma ICE facility.
YouTube video by Congresswoman Andrea Salinas
youtube.com
November 25, 2025 at 10:37 PM
I’ve heard many stories of how ICE is not following the law or honoring due process.
I'm at the Tacoma ICE facility to come see for myself and hold ICE accountable. From my visit, it was abundantly clear that ICE is lying.
I'm at the Tacoma ICE facility to come see for myself and hold ICE accountable. From my visit, it was abundantly clear that ICE is lying.
Reposted by David Sacerdote
Scientists: have you been the target of an online harassment campaign, doxxing, or weaponized FOIA requests? I'd like to talk to you about steps you had to take to protect your digital security for an upcoming Nature story. (You can be anonymous if necessary.)
RTs appreciated.
RTs appreciated.
November 26, 2025 at 12:18 AM
Scientists: have you been the target of an online harassment campaign, doxxing, or weaponized FOIA requests? I'd like to talk to you about steps you had to take to protect your digital security for an upcoming Nature story. (You can be anonymous if necessary.)
RTs appreciated.
RTs appreciated.
Reposted by David Sacerdote
A little post-mortem on COP30 with @jackiefmogensen.bsky.social
How forceful the call for fossil fuel phaseout was—just for it to be struck from the decision! And, what role the US's absence played in this happening...
How forceful the call for fossil fuel phaseout was—just for it to be struck from the decision! And, what role the US's absence played in this happening...
Can the world address climate change without the US?
Even with Trump's America absent, COP30 ended in a weak deal—and a win for petrostates.
www.motherjones.com
November 25, 2025 at 11:10 PM
A little post-mortem on COP30 with @jackiefmogensen.bsky.social
How forceful the call for fossil fuel phaseout was—just for it to be struck from the decision! And, what role the US's absence played in this happening...
How forceful the call for fossil fuel phaseout was—just for it to be struck from the decision! And, what role the US's absence played in this happening...
Reposted by David Sacerdote
Re: California vs. Texas, instead of debating who is better at solar we should be asking why places with even more sun, looking at you Arizona and New Mexico, have such low solar adoption.☀️🔌💡
A graph you won’t see in a story about Texas’ rapid solar and storage deployment.. 🔌💡 #EnergyTransition
November 25, 2025 at 10:52 PM
Re: California vs. Texas, instead of debating who is better at solar we should be asking why places with even more sun, looking at you Arizona and New Mexico, have such low solar adoption.☀️🔌💡
Reposted by David Sacerdote
PG&E, National Grid and other big utilities are using AI models to pick out relatively cheap, targeted fixes that cut the risk of sparking a deadly fire -- think individual poles to replace and trees to trim back. Story w/ @joewertz.bsky.social (gift link) www.bloomberg.com/news/article...
Massive Wildfire Liabilities Push Utilities to Use AI to Stop Blazes
Power companies are turning to tech firms that can spot fragile trees and map high-risk areas before fires start.
www.bloomberg.com
November 25, 2025 at 3:58 PM
PG&E, National Grid and other big utilities are using AI models to pick out relatively cheap, targeted fixes that cut the risk of sparking a deadly fire -- think individual poles to replace and trees to trim back. Story w/ @joewertz.bsky.social (gift link) www.bloomberg.com/news/article...
Reposted by David Sacerdote
The Surreal Madness of the AI Boom talkingpointsmemo.com/edblog/the-s... via @TPM
The Surreal Madness of the AI Boom
TPM Reader EB emailed today to tell me something that hadn’t come...
talkingpointsmemo.com
November 25, 2025 at 9:17 PM
The Surreal Madness of the AI Boom talkingpointsmemo.com/edblog/the-s... via @TPM
Reposted by David Sacerdote
Meanwhile Texas has also seen a reduction in gas.......because it was replaced with coal (and all the new renewables were diverted to meeting new demand instead of eliminating fossil fuels)
www.eia.gov/todayinenerg...
www.eia.gov/todayinenerg...
November 25, 2025 at 9:18 PM
Meanwhile Texas has also seen a reduction in gas.......because it was replaced with coal (and all the new renewables were diverted to meeting new demand instead of eliminating fossil fuels)
www.eia.gov/todayinenerg...
www.eia.gov/todayinenerg...
Reposted by David Sacerdote
Cooking with gas.
Well-oiled machine.
Burning the midnight oil.
Step on the gas.
Too many everyday expressions reek of fossil fuels. Help me come up with cleaner alternatives, please! I'm taking suggestions at Climate-Colored Goggles: www.climatecoloredgoggles.com/p/watch-your...
Well-oiled machine.
Burning the midnight oil.
Step on the gas.
Too many everyday expressions reek of fossil fuels. Help me come up with cleaner alternatives, please! I'm taking suggestions at Climate-Colored Goggles: www.climatecoloredgoggles.com/p/watch-your...
Watch your f-ing language
Too many expressions reek of fossil fuels. Let's stop "cooking with gas" and come up with cleaner alternatives.
www.climatecoloredgoggles.com
November 25, 2025 at 4:56 PM
Cooking with gas.
Well-oiled machine.
Burning the midnight oil.
Step on the gas.
Too many everyday expressions reek of fossil fuels. Help me come up with cleaner alternatives, please! I'm taking suggestions at Climate-Colored Goggles: www.climatecoloredgoggles.com/p/watch-your...
Well-oiled machine.
Burning the midnight oil.
Step on the gas.
Too many everyday expressions reek of fossil fuels. Help me come up with cleaner alternatives, please! I'm taking suggestions at Climate-Colored Goggles: www.climatecoloredgoggles.com/p/watch-your...
Reposted by David Sacerdote
Will Trump let Congress take away his favorite toy — that is, his ability to mess with renewables development?
If he wants a permitting deal, he may have to. Here's @jael.bsky.social with the story:
heatmap.news/politics/per...
If he wants a permitting deal, he may have to. Here's @jael.bsky.social with the story:
heatmap.news/politics/per...
Trump Is the Biggest Wild Card in Permitting Reform
Congress is motivated to pass a bipartisan deal, but Democrats are demanding limits on executive power.
heatmap.news
November 25, 2025 at 8:59 PM
Will Trump let Congress take away his favorite toy — that is, his ability to mess with renewables development?
If he wants a permitting deal, he may have to. Here's @jael.bsky.social with the story:
heatmap.news/politics/per...
If he wants a permitting deal, he may have to. Here's @jael.bsky.social with the story:
heatmap.news/politics/per...
Reposted by David Sacerdote
People looking for signs of change often assume the change that matters most, the watershed, the rubicon, the turning point will be a dramatic event. But a case can be made that the changes that matter most happen in minds and hearts, and the events follow from that.
Revolutionary Weather (and the Baboon in the Ruins)
Everything changed in the last few weeks. The Republicans, assumed by themselves and too many others, to be unstoppable got stopped again and again. Public opinion manifested in many ways: as an elect...
www.meditationsinanemergency.com
November 25, 2025 at 8:18 PM
People looking for signs of change often assume the change that matters most, the watershed, the rubicon, the turning point will be a dramatic event. But a case can be made that the changes that matter most happen in minds and hearts, and the events follow from that.
Reposted by David Sacerdote
A notable subset of affected workers are Texas prisoners, many of whom both work (unpaid) in the fields and have no air conditioning in most TX prison units.
Texas keeps getting hotter, and workers keep dying in the heat insideclimatenews.org/news/2411202...
Texas keeps getting hotter, and workers keep dying in the heat insideclimatenews.org/news/2411202...
Texas Workers Keep Dying in the Heat - Inside Climate News
Despite its blazing temperatures, Texas has no labor protections for heat. That leaves workers, especially immigrants, vulnerable on the job.
insideclimatenews.org
November 25, 2025 at 5:25 PM
A notable subset of affected workers are Texas prisoners, many of whom both work (unpaid) in the fields and have no air conditioning in most TX prison units.
Texas keeps getting hotter, and workers keep dying in the heat insideclimatenews.org/news/2411202...
Texas keeps getting hotter, and workers keep dying in the heat insideclimatenews.org/news/2411202...