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Kacy Manahan

@kcmanahan.bsky.social
415 followers 1.6K following 108 posts

Environmental litigator, runner, lurker. All views expressed are my own.

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Reposted by Kacy Manahan
Sarah McAnulty, Ph.D. @sarahmackattack.bsky.social · 20/09/2026
Attention Philadelphia! We need your help saving the Academy of Natural Sciences! The Save the Academy Coalition needs volunteers to help hand out organizing flyers in front of the museum this weekend, Sept 25-27. Please sign up here if you can take a shift! docs.google.com/forms/d/e/1F...
docs.google.com
Help Save the Academy: Volunteer to talk with visitors and hand out flyers at the Academy.
Sign up for a shift outside the Academy of Natural Sciences during its last open days: Fridays to Sundays, Sept 18 to 20 and 25 to 27, 10 a.m. to 5 p.m. Volunteers will be on the ground outside the Ac...
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LSM @slukemorgan.bsky.social · 31/08/2026
Apologies if someone else has pointed this out in expressly these terms before. One dynamic that's distorting prelim relief in favor of the admin in these cases is the asymmetry between irreparable injury and injury-in-fact:
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Brad Johnson @climatebrad.hillheat.com · 11/03/2026
straight up misinformation from Politico Power Switch today: "The Clean Air Act was never designed to regulate planet-warming pollution." the definition of air pollution in the 1970 Clean Air Act deliberately mentions weather and climate, in part because carbon dioxide was known to be dangerous.
All language referring to effects on welfare includes, but is not limited to, effects on soils, water, crops, vegetation, manmade materials, animals, wildlife, weather, visibility, and climate, damage to and deterioration of property, and hazards to transportation, as well as effects on economic values and on personal comfort and well-being.
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Colin Kinniburgh @colinreports.bsky.social · 10/11/2025
It got overshadowed by the pipeline news, but NYS’s deal to allow Greenidge Generation to keep operating an upstate gas plant *for the sole purpose of mining bitcoin* might be almost as big of a reversal gothamist.com/news/upstate...
gothamist.com
Upstate NY Bitcoin mine agrees to slash emissions, will get air permit from the state
The move comes days after Hochul’s administration paved the way for a new natural gas pipeline in New York Harbor.
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Civic Grit @civicgrit.bsky.social · 06/10/2025
Kelly Drive in Fairmount Park has been engineered to remove most pedestrian crossings and amenities, to speed up traffic. A thread with 8 examples of things that have been lost, with historical images. South to north. 1. A staircase from the river trail to the Girard Ave Bridge, and Brewerytown:
A street view image showing how there's no pedestrian crossing near a staircase that's poorly maintained.A historical image of a pedestrian path leading up to the Girard Ave Bridge.
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Kacy Manahan @kcmanahan.bsky.social · 23/09/2025
A bit of happy news! After years of work from many people, and in response to a petition from my organization Delaware Riverkeeper Network, EPA finalized revised water quality standards for the tidal Delaware to support all life stages of aquatic life, including Atlantic Sturgeon! 🐟
epa.gov
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Kacy Manahan @kcmanahan.bsky.social · 21/08/2025
This whole thread!
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🌍⚖️ Sébastien Duyck @duycks.bsky.social · 23/07/2025
45/ ⚖️🌱The Court. "The human right to a clean, healthy and sustainable environment is therefore inherent to other human rights. Under international law, the RtHE is essential to the enjoyment of other human rights."
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🌍⚖️ Sébastien Duyck @duycks.bsky.social · 23/07/2025
🔥 ⚖️ 🌐HAPPENING NOW: Historic #ClimateJustice Ruling being delivered by the 🇺🇳 🧑‍⚖️ International Court of Justice. 🚨This ruling could signal a new dawn for climate law & accountability 📝 🧵 Live thread below with context, summary & analysis 👇 #ClimateJusticeAO #AOLetsGo
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Trans Journalists Association @transjournalists.org · 18/06/2025
Resources for covering today's 6-3 SCOTUS decision on Tennessee's ban on medical care for transgender youth: www.transjournalists.org/2025-skrmett...
transjournalists.org
What journalists should know in advance of the U.S. v. Skrmetti U.S. Supreme Court decision
In advance of what will likely be a landmark U.S. Supreme Court decision in the U.S. v. Skrmetti case, the Trans Journalists Association offers the following guidance to reporters, newsrooms, and othe...
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Kacy Manahan @kcmanahan.bsky.social · 29/05/2025
Seven County just released . . . www.supremecourt.gov/opinions/24p...
supremecourt.gov
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Jayson Massey @jaysonmassey.bsky.social · 29/04/2025
Request your free street tree today! Get in line for the fall, why wait til 2026? Fill the form out. If you have a pavement, a contractor will cut a space for the tree. It's a great program! pg-cloud.com/phs/?openfor...
pg-cloud.com
PHS Urban Forest Cloud
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Reposted by Kacy Manahan
Dr Kat Day (she/her) 🎃🌓 @chronicleflask.katday.com · 25/04/2025
This is your occasional reminder that typing “-ai” before your search term is pretty effective at preventing the often-inaccurate Ai summaries (Yes, I know there are other ways: this is the quickest and easiest to remember)
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Kacy Manahan @kcmanahan.bsky.social · 12/04/2025
Disgraceful.
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Kacy Manahan @kcmanahan.bsky.social · 12/04/2025
I’ve been thinking about this pivot a lot. What should be the response to those who say climate disruption doesn’t need to be avoided?
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Caroline Spears @spears.bsky.social · 09/04/2025
The White House is clearly scared of the power states have to build the clean energy economy and is resorting to blatantly unconstitutional tactics. The Trump administration is hoping that pro-climate state governments back down in fear. How should states respond? Simple. Ramp up instead. 🧵
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Timothy Snyder @timothysnyder.bsky.social · 24/03/2025
If you accept that non-citizens have no right to due process, you are accepting that citizens have no right to due process. All the government has to do is claim that you are not a citizen; without due process you have no chance to prove the contrary.
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Ellie Margolis @elliemargolis.bsky.social · 18/03/2025
State constitutions for the win! www.supremecourt.ohio.gov/rod/docs/pdf...
supremecourt.ohio.gov
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Kacy Manahan @kcmanahan.bsky.social · 18/03/2025
Great opinion piece by Pamela Darville of @powerinterfaith.bsky.social about Philadelphia's gas distribution system and how the Pennsylvania #GreenAmendment plays a role in the management of municipally-owned gas utilities.
share.inquirer.com
Philadelphia’s decaying gas lines are a ticking time bomb beneath our streets | Opinion
These disasters are not accidents. They are symptoms of PGW’s failure to prioritize safety over profit, leaving communities hostage to pipelines older than most grandparents.
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Reposted by Kacy Manahan
John Walke @johndwalke.bsky.social · 12/03/2025
Since Trump's inauguration, his EPA had announced no major step to address water or air pollution. That changed today. Trump's EPA BOASTED it plans the biggest rollback of safeguards for health, land, water & air quality in US history. To INCREASE harmful pollution to water, air, to your community.
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Kacy Manahan @kcmanahan.bsky.social · 04/03/2025
Today's #SCOTUS decision begs the question (posed by the dissent)--how will #EPA issue permits that ensure water quality standards are met? Ends-based limitations at least nominally met that requirement.
supremecourt.gov
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Kacy Manahan @kcmanahan.bsky.social · 25/02/2025
Come hear me talk about the right to a healthy environment this Friday!
pielc.org
PIELC
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Blake Emerson @blakeprof.bsky.social · 25/02/2025
Administrative law in the 1970s: how much peanuts in the peanut butter? Administrative law today:
media.tenor.com
arnold schwarzenegger from terminator says come with me if you want to live .
Alt: arnold schwarzenegger from terminator says come with me if you want to live .
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Kacy Manahan @kcmanahan.bsky.social · 18/02/2025
If you’re wondering, like I was, what’s “illegal” about DEI efforts in the eyes of the new administration, this thread is a helpful explainer.
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Nick Cunningham @nickcunningham.bsky.social · 10/02/2025
In a court filing, Rio Grande LNG is citing a Trump executive order on environmental justice as a reason why the company's legal problems should be moot gasoutlook.com/news/rio-gra...
It’s not that the pollution won’t damage communities in south Texas, it’s that the pollution no longer legally matters, the companies argued.

“Following the January 21 [executive order], it is now clear that all of the claimed errors cited by the panel here as the basis for vacatur are based on authorities that are now without force,” Rio Grande LNG wrote. “As a result, they cannot be a proper basis for vacating FERC’s authorization of the Rio Grande project and requiring a supplemental [environmental impact statement] based on purported deficiencies in an environmental justice analysis.”
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Kacy Manahan @kcmanahan.bsky.social · 03/02/2025
Petition for rehearing en banc of Marin Audubon denied--concurrence acknowledges violation of party presentation principle but denies rehearing because discussion of CEQ regulatory authority was not necessary to disposition of the merits. media.cadc.uscourts.gov/opinions/doc...
media.cadc.uscourts.gov
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Kirti Datla @kirtidatla.bsky.social · 14/11/2024
I'm going to attempt to track jobs in my line of work (administrative law, litigation-y) that open up over the next stretch and post them here. Let me know if I miss something.
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Cooper Freeman @cooperfreeman.bsky.social · 16/01/2025
We're hiring for an experienced attorney fired up to hold the line against the oncoming Trump onslaught up here in Alaska. Come join our team or share with your friends! biologicaldiversity.bamboohr.com/careers/111
biologicaldiversity.bamboohr.com
Staff or Senior Attorney
Salary Range: Staff Attorney: $69,000 - $85,000; Senior Attorney: $85,000 - $125,000 Location:  This is a remote position. Applicants residing anywhere in Alaska strongly preferred and will be given p...
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Lawrence Hurley @lawrencehurley.bsky.social · 10/01/2025
Bluesky gets a shoutout at the Supreme Court
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Dr. Sandra Steingraber 🏳️‍🌈 @ssteingraber1.bsky.social · 02/01/2025
Fantastic explainer by @propublica.org on the stealthy ways that old oil and gas wells are almost never fully decommissioned and permanently plugged—including how they get repurposed for subsided *waves hands in the air* scammy carbon sequestration operations. www.propublica.org/article/oil-...
propublica.org
The American Oil Industry’s Playbook, Illustrated: How Drillers Offload Costly Cleanup Onto the Public
Oil executive Tom Ragsdale walked away from his old wells, making the pollution left behind the state of New Mexico’s problem. His tactics, however, are ubiquitous in the industry.
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Mark Z. Jacobson @mzjacobson.bsky.social · 27/12/2024
Carbon capture+pipes, synthetic direct air carbon capture and pipes, blue hydrogen, and non-H2 electro-fuels are all net sources of CO2 and air pollution into the atmosphere and should be eliminated in the same way fossil fuels should be eliminated. web.stanford.edu/group/efmh/j...
web.stanford.edu
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Brian Jacobson @bleudeciel.bsky.social · 24/12/2024
Including the interview with @katecrawford.bsky.social - and the terrific idea of AI as a “metabolic technology”
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Kacy Manahan @kcmanahan.bsky.social · 24/12/2024
Can we do this in Philly instead of the weird Schuylkill swimming pool by 30th Street?
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Kacy Manahan @kcmanahan.bsky.social · 17/12/2024
‼️The LNG Export study is out! ‼️
fossil.energy.gov
Office of Fossil Energy and Carbon Management
Homepage - Office of Fossil Energy and Carbon Management
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Sara A. Colangelo @sara-colangelo.bsky.social · 17/12/2024
🚨 #environmentallaw jobs at @sabincenter.bsky.social/Enviro. Advoc. NY & @uclalawemmett.bsky.social! Run don't walk for the opp. to work at orgs w/ great folks like @michaelgerrard.bsky.social @carahorowitz.bsky.social! Pls share recruit.apo.ucla.edu/JPF09931 climate.law.columbia.edu/sites/defaul...
recruit.apo.ucla.edu
Emmett Institute Fellowship in Environmental Law and Policy 2025-2027
University of California, Los Angeles is hiring. Apply now!
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Kacy Manahan @kcmanahan.bsky.social · 13/12/2024
A climate superfund law for New Jersey! File it under “things that just make sense.”
inquirer.com
New Jersey bill proposes fees to fight climate change
The state, home to several oil and gas facilities, is considering levies on producers of fossil fuels.
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Kacy Manahan @kcmanahan.bsky.social · 13/12/2024
The awesome power of not only environmental rights, but also a constitutional provision that mandates inter-generational equity!
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Lawrence Hurley @lawrencehurley.bsky.social · 11/12/2024
Biden administration has filed a brief urging Supreme Court not to grant petition filed by energy companies seeking to dismiss climate change damages lawsuit in Hawaii. It is unlikely Trump administration would share that view. Brief: www.supremecourt.gov/DocketPDF/23...
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Kacy Manahan @kcmanahan.bsky.social · 10/12/2024
Hey #EnergySky, what do you make of this statement from #DOE? Particularly the part about the sequence of decisionmaking being consistent with #DOE policy and precedent during both Democratic and Republican administrations.
energy.gov
Following FERC Notices, U.S. Department of Energy Provides Clarity to Status of LNG Export Authorization Requests
A statement from the U.S. Department of Energy.
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Kacy Manahan @kcmanahan.bsky.social · 10/12/2024
Looking back at the #legislativehistory of #NEPA after today's argument. Section 102 provides that subsections (1) and (2) are to be complied with "to the fullest extent possible." The Conference Report accompanying S. 1075 (which would become NEPA) explains that this phrase was meant to replace...
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Kacy Manahan @kcmanahan.bsky.social · 10/12/2024
Now that I've had a moment to reflect on today's #SCOTUS argument, I think the biggest issues in this case are: (1) the role of tort law in #NEPA as introduced by Public Citizen, as the statute itself did not feature tort law language until the Builder Act of 2023 ("reasonably foreseeable") . . .
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Kacy Manahan @kcmanahan.bsky.social · 10/12/2024
⚖️ Attempting a live-skeet of #SCOTUS Seven County Infrastructure Coalition (No. 23-975) oral argument. #NEPA #environmentallaw 🐻with me . . . 🧵
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Kacy Manahan @kcmanahan.bsky.social · 09/12/2024
BIG news! TCE and PCE are common "constituents of concern" at hazardous cleanup sites across the country because they are used extensively in many industries. This also means a high level of occupational exposure.
epa.gov
Biden-Harris Administration Announces Latest Actions under Nation’s Chemical Safety Law to Protect People from Cancer-Causing Chemicals Trichloroethylene and Perchloroethylene | US EPA
EPA News Release: Biden-Harris Administration Announces Latest Actions under Nation’s Chemical Safety Law to Protect People from Cancer-Causing Chemicals Trichloroethylene and Perchloroethylene
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Dr. Genevieve Guenther (she/they) @doctorvive.bsky.social · 08/12/2024
I read this @arnabdatta.bsky.social OpEd as an apology for a vision of decarbonization that includes ongoing fossil-fuel production. Like all apologies for bad, unworkable climate ideas it misrepresents both the state of play & the costs of its own prescriptions. 🧵 www.nytimes.com/2024/12/08/o...
nytimes.com
Opinion | Climate Activists Need to Radically Change Their Approach Under Trump
Climate purity is a recipe for failure.
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Kacy Manahan @kcmanahan.bsky.social · 02/12/2024
For those who are promoting books on this platform: it’s working. I think my “books purchased” to “skeets skeeted” ratio is greater than two.
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Kacy Manahan @kcmanahan.bsky.social · 20/11/2024
Love the CRS! Great resource.
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Kacy Manahan @kcmanahan.bsky.social · 18/11/2024
I still think car-centric landscapes deprive us of our freedom!
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Emily Sanders @emdashsanders.bsky.social · 15/11/2024
New potential threats to climate lawsuits against Big Oil in the impending Trump era: -- a Trump DOJ could weigh in on petitions before the Supreme Court to throw out the cases -- Republicans in Congress could pursue a liability waiver, immunizing the industry www.exxonknews.org/p/climate-ac...
exxonknews.org
Climate accountability under Trump: the courts
The outlook for climate action in the U.S. is grim, but there’s a separate path forward for accountability in the courts.
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