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Peter Jarka-Sellers

@pjarkasellers.bsky.social
361 followers 628 following 199 posts

Policy at Run On Climate @runonclimate.bsky.social. Climate & energy policy in the US, internationally (esp Europe/India). Johns Hopkins @johnshopkinssais.bsky.social SAIS alum. Philly native 🦅, runner, podcast lover, auch Österreicher. 🇦🇹 🇺🇸 Opinions mine.

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Peter Jarka-Sellers @pjarkasellers.bsky.social · 04/10/2026
Why did Ken Paxton run an ad during the 1pm Eagles-Rams game in the Philly media market??
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Peter Jarka-Sellers @pjarkasellers.bsky.social · 21/09/2026
Despite climate hushing, concern about the climate crisis is the second highest it’s ever been among Democrats. And very close to the all-time high among Independents.
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Brendan Nyhan @brendannyhan.bsky.social · 30/08/2026
Grotesque
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Peter Jarka-Sellers @pjarkasellers.bsky.social · 30/08/2026
In Boston and ran along the river. If you’re on the path along the river and want to cross the BU bridge, you can’t b/c the stairs up to the bridge are on the other side of a very busy road w no crossing. Stairs on that side of the road would be a simple but big improvement! @wutrain.bsky.social
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Peter Jarka-Sellers @pjarkasellers.bsky.social · 27/08/2026
www.planetizen.com/news/2026/08... "Living in a tree-lined city brings numerous benefits for its residents: they cool streets by up to two degrees Fahrenheit, improve air quality, better residents mental health and even decrease heat-related illnesses and deaths."
planetizen.com
NYC will add nearly 10,000 acres of ‘urban forest’ by 2040
The city aims to increase canopy tree coverage by nearly 30% to cool streets and decrease heat-related illness.
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Peter Jarka-Sellers @pjarkasellers.bsky.social · 26/08/2026
Thinking about the Da Vinci quote I saw in the Da Vinci museum in Rome that the human body being the most sophisticated machine he ever saw.
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Peter Jarka-Sellers @pjarkasellers.bsky.social · 20/08/2026
Der einzige Weg ist weg von Einwegplastik zu kommen.
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Peter Jarka-Sellers @pjarkasellers.bsky.social · 17/08/2026
www.canarymedia.com/articles/hea... Electric heat pumps for industrial use saving this cheesemaker $94,000 per year by cutting electricity use in half. Highly efficient technology. More and more often, climate solutions are just better technology, regardless of their crucial emissions reductions.
canarymedia.com
World’s oldest cheddar-maker slashes energy bills with novel heat…
Innovative tech from U.K.-based Arkaya Energy cools fresh milk and redirects the resulting heat, saving Barber’s Farmhouse Cheesemakers more than $90,000…
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Peter Jarka-Sellers @pjarkasellers.bsky.social · 12/08/2026
We need more of this! Climate policy that improves peoples live directly. Wir brauchen mehr davon! Klimapolitische Maßnahmen, die das Leben von Leuten konkret verbessern.
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Peter Jarka-Sellers @pjarkasellers.bsky.social · 10/08/2026
Climate crisis!
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FALTER. Die Wochenzeitung aus Wien @falter.at · 06/08/2026
Die Dürre sorgt für zunehmende Probleme im Osten Österreichs. Am Mittwoch brach ein Großbrand in der Lobau aus, trotz Probleme mit der Wasserversorgung konnte das Feuer gebändigt werden. Welche Folgen das trockene Klima auf Landwirtschaft, Stromversorgung und Pflanzen hat ↓
falter.at
Hitzewelle: Die Lobau brannte und das ist nur eine Folge der Dürre
Waldbrände, Ernteausfälle, Probleme bei der Energieversorgung: Die Dürre stellt die Stadt vor Herausforderungen >>…
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Peter Jarka-Sellers @pjarkasellers.bsky.social · 05/08/2026
Waldbrände, Dürre, Wasserknappheit, Extremtemperaturen. Ist keine Übertreibung: Heimatschutz = Klimaschutz Unserer Lebensstil, unsere Gesundheit, unsere Traditionen, unsere Wirtschaft stehen alle im Gefahr.
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Rebecca John @rebeccajohn.bsky.social · 29/07/2026
As Shell faces a landmark climate lawsuit, "confidential" documents from the 1960s show British scientist James Lovelock warning executives of the risks of burning fossil fuels. See his June 1966 memo published in full for the first time with my latest for @desmog.com
desmog.com
The Lovelock Papers: Shell’s Hidden Climate Knowledge Under Scrutiny as Court Battle Looms
“What seems to be important,” wrote the visionary British scientist, James Lovelock, in June 1966, is “the almost certain fact that the climate is worsening and the probability that the combustion of ...
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Leo Hickman @leohickman.carbonbrief.org · 30/07/2026
++BREAKING++ The UK and Spanish governments have issued a joint statement overnight: "[We] agreed that this summer’s wildfires demonstrated that climate change was now a national security emergency facing Europe and threatening our way of life." www.gov.uk/government/n...
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Dave Vetter @davidrvetter.bsky.social · 27/07/2026
🚨NEW from me: leading climate scientist @rahmstorf.bsky.social tells me of his anger after witnessing firsthand the devastating Gironde wildfires - which he ties directly to politicians' inaction on fossil fuels.
forbes.com
Climate Scientist Fleeing Wildfires: ‘We’re In A Race Against Time’
Professor Stefan Rahmstorf escapes out-of-control wildfires in France, and warns fossil fuel inaction is supercharging climate disasters.
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Run On Climate @runonclimate.bsky.social · 26/07/2026
Check out Your Guide to Climate Action: How to Move Beyond Your Footprint and Make a BIG Impact by Run On Climate supporter Ryan Hagen. For the next two weeks, Ryan will donate $10 from every book sold to Run On Climate.
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Sammy Roth @sammyroth.bsky.social · 23/07/2026
Insane new research. Scientists gave asthma patients free electric stoves to replace their gas stoves, then checked to see if symptoms improved. Not only did symptoms improve, ditching gas was *better than medicine.* Details in today's newsletter: www.climatecoloredgoggles.com/p/electric-s...
climatecoloredgoggles.com
Researchers used electric stoves to treat asthma. It worked.
The latest evidence that gas is bad for your health.
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doew.at @doew.at · 23/07/2026
Wir haben unsere Unterlassungsklage gegen die FPÖ vor dem OGH gewonnen. Unsere Stellungnahme zu dem juristischen Erfolg findet sich auf www.doew.at/neues/doew-g...
DÖW gewinnt vor OGH gegen die FPÖ

Der Oberste Gerichtshof sieht „keine, auch keine ‚schmale‘ Tatsachengrundlage“ in der Behauptung der FPÖ, das DÖW sei pseudowissenschaftlich. Außerdem stehe fest, dass das Personal des DÖW aus anerkannten Expert*innen bestehe. Die FPÖ muss ihre Behauptung widerrufen und künftig unterlassen. Nähere Informationen zu dem Urteil finden sich auf doew.at
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Soren Stevenson @sorenwithward8.bsky.social · 16/07/2026
I've seen enough! In City Hall, I'm working on transit improvements and decarbonization buildings right now. We know that gas in buildings and oil from cars and trucks are the two biggest sources of carbon pollution. Transit and electrification of buildings are our way out.
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Run On Climate @runonclimate.bsky.social · 16/07/2026
Senior Policy Associate, Peter Jarka-Sellers, has seen that growth firsthand over the past 14 months as our policy team has expanded its capacity to aid communities with new and bold climate policy. Here's to five years of growth and looking forward to the next five. 💚
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CleanTechnica @cleantechnica.bsky.social · 01/07/2026
Federal Appeals Court Upholds New York Limits on Fossil Fuel Use in Buildings cleantechnica.com/2026/06/30/f...
cleantechnica.com
Federal Appeals Court Upholds New York Limits on Fossil Fuel Use in Buildings - CleanTechnica
Support CleanTechnica's work through a Substack subscription or on Stripe. Second Circuit rejects industry challenges to building electrification requirements. Today, the U.S. Court of Appeals for the...
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ProPublica @propublica.org · 22/06/2026
Republican backers of Trump’s signature domestic policy bill repeatedly claimed that revisions to the food benefits program wouldn’t affect the most vulnerable. But reports from a dozen states show children are losing access.
propublica.org
More Than 770,000 Children Are No Longer Receiving SNAP Benefits After Trump Changes Federal Food Program
Republican backers of Trump’s signature domestic policy bill repeatedly claimed that revisions to the food benefits program wouldn’t affect the most vulnerable. But reports from a dozen states show ch...
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Hamed Aleaziz @haleaziz.bsky.social · 20/06/2026
SCOOP: Memo by Rubio Approved Detention of Immigrant Who Criticized Trump Ally www.nytimes.com/2026/06/19/u...
nytimes.com
Memo by Rubio Approved Detention of Immigrant Who Criticized Trump Ally
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Peter Jarka-Sellers @pjarkasellers.bsky.social · 12/06/2026
The day we electrify our homes is the day that breathing in your house doesn't raise your risk of cancer. I can't wait for that day. www.bostonglobe.com/2026/06/11/s...
bostonglobe.com
Does your home use natural gas? Carcinogens may be leaking into your air. - The Boston Globe
The gas contains pollutants including benzene, a known carcinogen, raising concerns that residents are breathing in small quantities of toxins.
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Quitting Carbon Media @quittingcarbon.bsky.social · 09/06/2026
California is installing zero-emission electric appliances and energy-saving upgrades at no cost to low-income households under @calenergy.bsky.social's Equitable Building Decarbonization Program: www.quittingcarbonmedia.com/california-i... 🔌💡
quittingcarbonmedia.com
California is investing a half-billion dollars to decarbonize homes for low-income households
California is installing zero-emission electric appliances and energy-saving upgrades at no cost to low-income households across the state under the Equitable Building Decarbonization Program.
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Dr. Ismail Küpeli @ismail-kuepeli.de · 07/06/2026
"Die öffentliche Demütigung gab es schon mal. Von 1933 bis 1945 wurden etwa Sinti und Roma oder Juden auch gezwungen, vor der Haustür zu kehren und dann wurden sie deportiert. Die Botschaft lautet: 'Ihr seid nirgendwo sicher"
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Max Miller @maxmiller.bsky.social · 07/06/2026
Bovino empfahl der AfD, bei Zwangsmigration auf erprobte, deutsche "Kreativität" zu setzen. "The germans are very good at this. If you put that kind of creativity and innovation into mass remigration, you will be very successful and very quickly successful."
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Peter Jarka-Sellers @pjarkasellers.bsky.social · 03/06/2026
Secretary Haaland (my former boss) will be a great next Governor of New Mexico! She lead on climate, clean energy, and justice for Native people at the Department of the Interior and will certainly continue that work as Governor.
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Peter Jarka-Sellers @pjarkasellers.bsky.social · 18/05/2026
The Pennsylvania Democratic primary is tomorrow, Tues May 19th! If you live in the 3rd congressional district, vote for Chris Rabb! www.chrisrabb.com The clear climate candidate in the race and a strong progressive endorsed by @janeclimatepac.bsky.social @sunrisemvmt.bsky.social @oilchangeaction.org
chrisrabb.com
Chris Rabb For Congress
Rep. Chris Rabb is running for US Congress in Pennsylvania's 3rd Congressional district. Chris Rabb is endorsed by AOC and The Philadelphia Inquirer. Learn more about his people-powered campaign, here...
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Peter Jarka-Sellers @pjarkasellers.bsky.social · 18/05/2026
www.planetizen.com/news/2026/05...
planetizen.com
Green blocks are up to 4 degrees cooler than treeless streets
The difference in temperature created by urban trees can translate to as much as 40% less excess heat.
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Center for Climate Integrity @climateintegrity.org · 14/05/2026
This fall, the high court will hear arguments from Big Oil companies seeking to escape accountability for their climate lies. Despite holding significant investments in the oil and gas industry, Justice Alito hasn't recused—an "indefensible breach of ethical boundaries," say gov't watchdogs.
theguardian.com
Watchdog groups urge Senate to investigate Samuel Alito over oil stock conflicts
Groups say supreme court justice, who owns stock in oil companies, may be violating ethics codes by participating in certain cases
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Sue AnderBois @sueanderbois.bsky.social · 06/05/2026
In contrast to earlier post - the City’s push to decarbonize - including the Carbon Neutral Buildings ordinance that I authored and passed and the Building Energy Reporting Ordinance I sponsored - is saving us real money in our budget. pvdeye.org/providence-g...
pvdeye.org
Amid Energy Crisis, Smiley Budget Cuts City Spending on Utilities. How? Municipal Decarbonization. - The Providence Eye
Officials project that Providence’s municipal utility costs will fall by nearly $2 million dollars this year while, at the same time, cutting emissions. At a time when the Trump administration is figh...
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Peter Jarka-Sellers @pjarkasellers.bsky.social · 06/05/2026
Coal use for electricity generation in India is down due in large part to significant and accelerating increases in clean power, especially solar! www.ecpulse.in/snapshots/ap... #energysky
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Quinton Zondervan @qyz.bsky.social · 05/05/2026
Join us if you’re free; hybrid event so you can participate remote as well. @runonclimate.bsky.social @votejivan.bsky.social
luma.com
Getting to Zero Emissions with Run On Climate · Luma
Can you imagine a fully zero emission, climate friendly city? This is where we need to get as fast as possible. This event features a conversation with…
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Run On Climate @runonclimate.bsky.social · 27/04/2026
Local climate action is real when it reaches the buildings we live in. Vermont’s geothermal projects are a reminder that cutting emissions can also mean more resilient, affordable, neighborhood-scale solutions. 🏘️#LocalAction
canarymedia.com
Vermont’s first neighborhood geothermal project prepares to break…
The gas utility and affordable housing developers building the system are pressing on with their plan despite the Trump administration’s funding clawbacks.
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Peter Jarka-Sellers @pjarkasellers.bsky.social · 26/04/2026
Here at the First Conference on Transitioning Away from Fossil Fuels! The momentum here for a binding treaty to ditch fossil fuels is amazing. We need to keep building that momentum back home, demand a treaty, and demand that our national/state/city governments move beyond fossil fuels for good.
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Covering Climate Now @coveringclimatenow.org · 26/04/2026
In 2025, renewable energy surpassed coal as the world’s largest electricity source for the first time. The thinktank @ember-energy.org projects that renewables will outpace nuclear power in 2026. By @mollylempriere.carbonbrief.org for @CarbonBrief.org
buff.ly
Clean energy pushes fossil-fuel power into reverse for ‘first time ever’ - Carbon Brief
Renewable energy has overtaken coal to become the world's largest source of electricity in 2025, according to thinktank Ember.
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Peter Jarka-Sellers @pjarkasellers.bsky.social · 19/04/2026
If you're going to be in Santa Marta, I'd love to connect there! Wenn du in Santa Marta sein wirst, lass uns gerne treffen!
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Peter Jarka-Sellers @pjarkasellers.bsky.social · 23/04/2026
“For the first time ever, more than 50 nations will gather next week in Colombia to hash out how to wind down and end their dependence on coal, oil and gas. The history-making conference was planned before the Iran war. … energy crisis has greatly raised the stakes.” techxplore.com/news/2026-04...
techxplore.com
The end of oil? As fuel shocks cascade, 53 nations gather to plan a fossil fuel phaseout
US President Donald Trump is a longtime climate denier and oil industry ally, who sums up his own energy policy as "drill, baby, drill." Yet he is doing more than almost anyone to speed up the global ...
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Peter Jarka-Sellers @pjarkasellers.bsky.social · 19/04/2026
If you're going to be in Santa Marta, I'd love to connect there! Wenn du in Santa Marta sein wirst, lass uns gerne treffen!
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Peter Jarka-Sellers @pjarkasellers.bsky.social · 17/04/2026
Join me at SF Climate Week for a virtual panel discussion I'm moderating! 𝗟𝗼𝗼𝗸𝗶𝗻𝗴 𝗧𝗼𝘄𝗮𝗿𝗱𝘀 𝗭𝗲𝗿𝗼 𝗘𝗺𝗶𝘀𝘀𝗶𝗼𝗻 𝗖𝗶𝘁𝗶𝗲𝘀 w/ @runonclimate.bsky.social I'll talk with three Bay Area city councilors, George Lu, @d4sanjose.bsky.social, & Matthew Solomon. Register here: luma.com/vjdt53vh
luma.com
Looking Towards Zero Emission Cities w/ Run On Climate · Luma
Can you imagine a fully zero emission, climate friendly city? This is where we need to get as fast as possible. This event features a conversation with three…
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Peter Jarka-Sellers @pjarkasellers.bsky.social · 11/04/2026
So gewinnt man einfach nicht. Statt implizit die falschen Argumente der anderen anzunehmen, muss man eine klare Gegenvision haben und selbstbewusst sagen, wie die Erneuerbaren günstigere Energie bedeuten.
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Peter Jarka-Sellers @pjarkasellers.bsky.social · 06/04/2026
He needs to be impeached and removed before he does even more damage. His presidency is a destructive, steadily unfolding disaster. I know impeachment is politically dead on arrival but it’s still important to say clearly that it is the solution this moment demands.
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Babcock & Peale @pealebabcock.bsky.social · 30/03/2026
Write your own verse. Share with #OBeautifulFor @hcrichardson.bsky.social
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Joseph D. Ortiz @earthsciinfo.bsky.social · 28/03/2026
This is the way... 🧪🔌💡☀️💨💧🔋 cleantechnica.com/2026/03/26/u...
cleantechnica.com
UK Mandates Rooftop Solar & Heat Pumps For New Homes Beginning In 2028 - CleanTechnica
The UK Future Homes Program will require rooftop solar and heat pumps in new homes beginning in April of 2028.
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Christian Breyer @christianonre.bsky.social · 16/03/2026
Analysis: Coal power drops in China and India for first time in 52 years after clean-energy records - www.carbonbrief.org/analysis-coa... - and see the power generation future of #India: www.nature.com/articles/s41...
carbonbrief.org
Analysis: Coal power drops in China and India for first time in 52 years after clean-energy records - Carbon Brief
Coal power generation fell in both China and India in 2025, after each nation added record amounts of clean energy
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Building Decarbonization Coalition @buildingdecarb.org · 12/03/2026
🚨 Register now for the “Thermal Energy Networks in Minnesota: Where should we build them?” webinar tomorrow at 2 pm ET / 1 pm CT, where authors of the Minnesota #ThermalEnergyNetwork Site Suitability Study will discuss the study's findings. #EnergySky #Geothermal #BuildingDecarb bit.ly/4rs8P5f
bit.ly
Thermal Energy Networks in Minnesota: Where should we build them?
In this webinar, Building The Future’s Chris Conroy will facilitate a discussion with some of the report’s authors—Noah Cordoba of the Building Decarbonization Coalition, Laura Helmke-Long of Slipstre...
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Peter Jarka-Sellers @pjarkasellers.bsky.social · 08/03/2026
Congestion pricing has been a wild success thehill.com/opinion/ener...
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Peter Jarka-Sellers @pjarkasellers.bsky.social · 04/03/2026
Huge bike growth in San Diego after making it safer to ride! Annual bike trips jumped 50k to 115k after the lane was installed in 2021. By 2025, 132k. “The lesson is straightforward: when people feel safe, they ride.” www.planetizen.com/news/2026/02...
planetizen.com
After San Diego Installed a Protected Bike Lane, Ridership More Than Doubled — and Hasn’t Stopped Growing.
“When people feel safe, they ride.”
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