Peter Jarka-Sellers
@pjarkasellers.bsky.social
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.
Pinned
Climate and energy podcasts recommendations: a thread!
I benefit greatly from a long list of podcasts covering the policy, politics, technology, and economics of climate/energy. Want to share them here on Bluesky. #energysky
In no particular order:
I benefit greatly from a long list of podcasts covering the policy, politics, technology, and economics of climate/energy. Want to share them here on Bluesky. #energysky
In no particular order:
Don’t forget that local governments can and are continuing to make critical climate policy progress!
Ryan in Boulder, CO and others around the country are doing the Lord’s work.
@runonclimate.bsky.social and the Local Climate Policy Network are eager to support, get in touch!
Ryan in Boulder, CO and others around the country are doing the Lord’s work.
@runonclimate.bsky.social and the Local Climate Policy Network are eager to support, get in touch!
Lights may be flickering in the U.S. climate movement.
But one area is shining brightly: Local governments.
Their growing momentum with climate action—plus their rich potential to make life better and society more climate-resilient together.
Here I share how advocates,… fas.org/publication/...
But one area is shining brightly: Local governments.
Their growing momentum with climate action—plus their rich potential to make life better and society more climate-resilient together.
Here I share how advocates,… fas.org/publication/...
To scale up climate solutions, local governments need to accelerate system changes - Federation of American Scientists
Cities saying climate change matters is typical. The number of US cities with adopted climate action plans is in the hundreds. That’s what we need, since cities drive the bulk of greenhouse gas emissi...
fas.org
January 19, 2026 at 3:12 PM
Don’t forget that local governments can and are continuing to make critical climate policy progress!
Ryan in Boulder, CO and others around the country are doing the Lord’s work.
@runonclimate.bsky.social and the Local Climate Policy Network are eager to support, get in touch!
Ryan in Boulder, CO and others around the country are doing the Lord’s work.
@runonclimate.bsky.social and the Local Climate Policy Network are eager to support, get in touch!
Efficient electric systems bring down costs!
Efficient:
-lower power use, same outcome
-less infrastructure needed for growth
All-electric:
-build/maintain one distribution system instead of two
-more overall power consumption >> lower fixed costs per MWh
commonwealthbeacon.org/opinion/effi...
Efficient:
-lower power use, same outcome
-less infrastructure needed for growth
All-electric:
-build/maintain one distribution system instead of two
-more overall power consumption >> lower fixed costs per MWh
commonwealthbeacon.org/opinion/effi...
Efficient electric equipment, powered by clean sources, is the answer to the energy affordability crunch - CommonWealth Beacon
Better equipment and cheaper energy sources are critical to achieving an affordable energy future.
commonwealthbeacon.org
December 12, 2025 at 3:51 PM
Efficient electric systems bring down costs!
Efficient:
-lower power use, same outcome
-less infrastructure needed for growth
All-electric:
-build/maintain one distribution system instead of two
-more overall power consumption >> lower fixed costs per MWh
commonwealthbeacon.org/opinion/effi...
Efficient:
-lower power use, same outcome
-less infrastructure needed for growth
All-electric:
-build/maintain one distribution system instead of two
-more overall power consumption >> lower fixed costs per MWh
commonwealthbeacon.org/opinion/effi...
Reposted by Peter Jarka-Sellers
Beyond depraved: "Hours after her detainment, court documents obtained by ABC News show that a federal judge ordered the government not to remove the 19-year-old from the U.S. and not to transfer her outside of Massachusetts. But Lopez Belloza was deported to Honduras the next day."
November 28, 2025 at 6:36 PM
Beyond depraved: "Hours after her detainment, court documents obtained by ABC News show that a federal judge ordered the government not to remove the 19-year-old from the U.S. and not to transfer her outside of Massachusetts. But Lopez Belloza was deported to Honduras the next day."
Reposted by Peter Jarka-Sellers
Giving Tuesday (@givingtuesday.bsky.social) is one week away! 💚
This #givingtuesday, consider supporting nonprofits, like us, by giving local! Your donations help us to create a more sustainable future. 🌎
🔗: givebutter.com/runonclimate
#givingtuesday #climateaction #climatechange #localpolicy
This #givingtuesday, consider supporting nonprofits, like us, by giving local! Your donations help us to create a more sustainable future. 🌎
🔗: givebutter.com/runonclimate
#givingtuesday #climateaction #climatechange #localpolicy
November 25, 2025 at 7:15 PM
Giving Tuesday (@givingtuesday.bsky.social) is one week away! 💚
This #givingtuesday, consider supporting nonprofits, like us, by giving local! Your donations help us to create a more sustainable future. 🌎
🔗: givebutter.com/runonclimate
#givingtuesday #climateaction #climatechange #localpolicy
This #givingtuesday, consider supporting nonprofits, like us, by giving local! Your donations help us to create a more sustainable future. 🌎
🔗: givebutter.com/runonclimate
#givingtuesday #climateaction #climatechange #localpolicy
Reposted by Peter Jarka-Sellers
The EU’s top court ruled today that when a same-sex couple is legally married in one member country, any other member country where they move or reside must recognize that marriage.
Top EU court mandates same-sex marriage recognition across borders
The Luxembourg-based court said a decision by Polish authorities infringed on a same-sex couple’s freedom of movement.
www.politico.eu
November 25, 2025 at 11:17 AM
The EU’s top court ruled today that when a same-sex couple is legally married in one member country, any other member country where they move or reside must recognize that marriage.
Looking forward to working with @mollycoleman.bsky.social to advance climate policy in Saint Paul!
We are so excited to welcome Councilmember @mollycoleman.bsky.social into the Local Climate Policy Network. ✨🌎
Read more about Molly, and the rest of our LCPN at runonclimate.org/our-network
#LCPN #runonclimate #climatechange #localpolitics #localclimate #saintpaul #Minnesota
Read more about Molly, and the rest of our LCPN at runonclimate.org/our-network
#LCPN #runonclimate #climatechange #localpolitics #localclimate #saintpaul #Minnesota
November 22, 2025 at 6:03 AM
Looking forward to working with @mollycoleman.bsky.social to advance climate policy in Saint Paul!
Reposted by Peter Jarka-Sellers
So proud of our Policy and Journalism Teams!
Thank you all for your work!
@qyz.bsky.social @pjarkasellers.bsky.social @runonclimate.bsky.social
Thank you all for your work!
@qyz.bsky.social @pjarkasellers.bsky.social @runonclimate.bsky.social
In Tucson, community organizing beat back a land deal for a data center that would’ve drained scarce water and relied on dirty energy. This isn’t just a pause, it’s a reminder: local voices matter. 🌱
Read more 👇
🔗: runonclimate.org/stories/a-ve...
#ClimateJustice #CommunityPower #LocalResistance
Read more 👇
🔗: runonclimate.org/stories/a-ve...
#ClimateJustice #CommunityPower #LocalResistance
“A Very Bad Deal”: How local organizing halted a massive data center development — for now. — Run on Climate
In Pima County, Arizona, three miles north of Tucson at the heart of the Sonoran Desert, there is a 290 acre fenced-off plot of parched land, dotted with cacti and desert sagebrush. This is the prop...
runonclimate.org
November 21, 2025 at 1:36 AM
So proud of our Policy and Journalism Teams!
Thank you all for your work!
@qyz.bsky.social @pjarkasellers.bsky.social @runonclimate.bsky.social
Thank you all for your work!
@qyz.bsky.social @pjarkasellers.bsky.social @runonclimate.bsky.social
Forcing us to pay more to breath polluted air and destroy our climate… 😤
Looking like President Trump will force a Colorado coal plant to stay open past its scheduled closure date this year, unnecessarily driving up electric rates: www.canarymedia.com/articles/fos... via @jeffstjohn.bsky.social
Trump’s DOE may soon force more coal plants to stay open
Colorado coal plants are likely to face DOE orders to keep running past planned closure dates, even as the costs of keeping an old Michigan plant open…
www.canarymedia.com
November 14, 2025 at 6:27 PM
Forcing us to pay more to breath polluted air and destroy our climate… 😤
We’re in a critical situation and have our work cut out for us. And we’re not stopping.
The good news is that there’s so much more we can do to reduce climate pollution and improve our lives in the process!
The good news is that there’s so much more we can do to reduce climate pollution and improve our lives in the process!
November 13, 2025 at 3:35 AM
We’re in a critical situation and have our work cut out for us. And we’re not stopping.
The good news is that there’s so much more we can do to reduce climate pollution and improve our lives in the process!
The good news is that there’s so much more we can do to reduce climate pollution and improve our lives in the process!
Climate and energy podcasts recommendations: a thread!
I benefit greatly from a long list of podcasts covering the policy, politics, technology, and economics of climate/energy. Want to share them here on Bluesky. #energysky
In no particular order:
I benefit greatly from a long list of podcasts covering the policy, politics, technology, and economics of climate/energy. Want to share them here on Bluesky. #energysky
In no particular order:
November 9, 2025 at 6:46 PM
Climate and energy podcasts recommendations: a thread!
I benefit greatly from a long list of podcasts covering the policy, politics, technology, and economics of climate/energy. Want to share them here on Bluesky. #energysky
In no particular order:
I benefit greatly from a long list of podcasts covering the policy, politics, technology, and economics of climate/energy. Want to share them here on Bluesky. #energysky
In no particular order:
Perhaps one of the most important and hope inspiring shifts in climate policy and the energy transition.
The increase in power demand from economy wide electrification will dwarf data centers and is the reason we need to build as much clean power as we can everywhere.
#energysky
The increase in power demand from economy wide electrification will dwarf data centers and is the reason we need to build as much clean power as we can everywhere.
#energysky
Electrification could now reach 75% of all energy demand, as the road-transport and heating sectors rapidly electrify 🔥🚗
These two sectors account for 50% of global energy use and are now ready to switch from fossil molecules to clean electrons.
https://loom.ly/BwyhReA
These two sectors account for 50% of global energy use and are now ready to switch from fossil molecules to clean electrons.
https://loom.ly/BwyhReA
November 8, 2025 at 7:47 PM
Perhaps one of the most important and hope inspiring shifts in climate policy and the energy transition.
The increase in power demand from economy wide electrification will dwarf data centers and is the reason we need to build as much clean power as we can everywhere.
#energysky
The increase in power demand from economy wide electrification will dwarf data centers and is the reason we need to build as much clean power as we can everywhere.
#energysky
An NDC that, if achieved, is truly in line with a ~1.5 degree pathway!
Mauritania aims to reduce its emissions by two thirds in 2035 #EnergySky
Mauritania aims to reduce its emissions by two thirds in 2035
Mauritania has published its new Nationally Determined Contribution (NDC) 3.0 covering the 2031-35 period (UNFCCC, 28/10/2025). The country commits to reduce its greenhouse gas (GHG) emissions by…
www.enerdata.net
October 31, 2025 at 2:06 AM
An NDC that, if achieved, is truly in line with a ~1.5 degree pathway!
www.forbes.com/sites/marian...
"Gas stoves emit benzene, carbon monoxide, methane, and nitrogen dioxide, which can trigger asthma, coughing, and wheezing, as well as chronic diseases like cancer."
"In the US, an alarming 13% of childhood asthma cases are caused by household gas stoves."
"Gas stoves emit benzene, carbon monoxide, methane, and nitrogen dioxide, which can trigger asthma, coughing, and wheezing, as well as chronic diseases like cancer."
"In the US, an alarming 13% of childhood asthma cases are caused by household gas stoves."
What Your Gas Stove Is Doing To Your Health
Induction stoves beat out gas stoves on health and the environment. Gas stove manufacturers are challenging a CO law to warn consumers about gas stove health concerns.
www.forbes.com
October 29, 2025 at 2:59 AM
www.forbes.com/sites/marian...
"Gas stoves emit benzene, carbon monoxide, methane, and nitrogen dioxide, which can trigger asthma, coughing, and wheezing, as well as chronic diseases like cancer."
"In the US, an alarming 13% of childhood asthma cases are caused by household gas stoves."
"Gas stoves emit benzene, carbon monoxide, methane, and nitrogen dioxide, which can trigger asthma, coughing, and wheezing, as well as chronic diseases like cancer."
"In the US, an alarming 13% of childhood asthma cases are caused by household gas stoves."
🚫👑🚫‼️
Trump responds to No Kings by posting video depicting him as a king
October 19, 2025 at 3:10 AM
🚫👑🚫‼️
Reposted by Peter Jarka-Sellers
California officially ended another summer without a Flex Alert, thanks to battery storage.
A new LA Times report shows how the state’s battery buildout is boosting grid reliability and keeping costs down. 🔋
Story by @hayleysmith.bsky.social:
latimes.com/environment/... #EnergySky
A new LA Times report shows how the state’s battery buildout is boosting grid reliability and keeping costs down. 🔋
Story by @hayleysmith.bsky.social:
latimes.com/environment/... #EnergySky
California made it through another summer without a Flex Alert. Thank batteries, experts say
Batteries that pair with clean solar and wind energy or just bolster electrical grids in general have completely taken off and are making a big difference on the California grid.
latimes.com
October 17, 2025 at 3:44 PM
California officially ended another summer without a Flex Alert, thanks to battery storage.
A new LA Times report shows how the state’s battery buildout is boosting grid reliability and keeping costs down. 🔋
Story by @hayleysmith.bsky.social:
latimes.com/environment/... #EnergySky
A new LA Times report shows how the state’s battery buildout is boosting grid reliability and keeping costs down. 🔋
Story by @hayleysmith.bsky.social:
latimes.com/environment/... #EnergySky
Reposted by Peter Jarka-Sellers
Gonna be thinking about this lede for a minute.
October 7, 2025 at 11:44 PM
Gonna be thinking about this lede for a minute.
Reposted by Peter Jarka-Sellers
Scoop: Trump lost the legal battle over halting the offshore Revolution Wind project after Orsted, its developer, brought reams of evidence to court alleging the government was lying about military security concerns.
It’s a sign truth can empower companies Trump targets.
Via @heatmap.news
It’s a sign truth can empower companies Trump targets.
Via @heatmap.news
How Trump’s Case Against Revolution Wind Fell Apart
The administration argued in the name of national defense — but Orsted had receipts.
heatmap.news
September 26, 2025 at 5:05 PM
Scoop: Trump lost the legal battle over halting the offshore Revolution Wind project after Orsted, its developer, brought reams of evidence to court alleging the government was lying about military security concerns.
It’s a sign truth can empower companies Trump targets.
Via @heatmap.news
It’s a sign truth can empower companies Trump targets.
Via @heatmap.news
Reposted by Peter Jarka-Sellers
City of #Boulder has concluded its mega #parking reform.
Parking minimums are now gone. So all those patches of 200 square feet that home-builders have been required to install at a cost of $30,000+ per space can now be used for other things like vegetable gardens, bike parking, and housing.
Parking minimums are now gone. So all those patches of 200 square feet that home-builders have been required to install at a cost of $30,000+ per space can now be used for other things like vegetable gardens, bike parking, and housing.
September 24, 2025 at 2:27 PM
Reposted by Peter Jarka-Sellers
On efforts to combat climate change, the US has joined the ranks of countries like Iran, Russia, and Saudi Arabia in being critically insufficient, thanks to the Trump Admin’s rollback of virtually all climate policy.
September 24, 2025 at 1:50 AM
On efforts to combat climate change, the US has joined the ranks of countries like Iran, Russia, and Saudi Arabia in being critically insufficient, thanks to the Trump Admin’s rollback of virtually all climate policy.
Die Erneuerbaren liefern finanzielle Entlastung bei Strompreisen, das sollte 20% günstigerer Strom in 2030 in Österreich bedeuten.
Dazu weniger teuere Gasimporte und das Erfüllen von Klimazielen im Stromsektor.
www.pv-magazine.de/2025/09/05/d...
Dazu weniger teuere Gasimporte und das Erfüllen von Klimazielen im Stromsektor.
www.pv-magazine.de/2025/09/05/d...
Die Erzeugung von Photovoltaik, Windkraft und Kleinwasserkraft senkt die Strompreise in Österreich um bis zu 20 Prozent
Unsere aktuelle Analyse im Auftrag von der IG-Wind, PV Austria und dem Verband Kleinwasserkraft zeigt eindrucksvoll: Der konsequente Ausbau von Windkraft, Photovoltaik und Kleinwasserkraft senkt die ö...
www.pv-magazine.de
September 20, 2025 at 7:17 PM
Die Erneuerbaren liefern finanzielle Entlastung bei Strompreisen, das sollte 20% günstigerer Strom in 2030 in Österreich bedeuten.
Dazu weniger teuere Gasimporte und das Erfüllen von Klimazielen im Stromsektor.
www.pv-magazine.de/2025/09/05/d...
Dazu weniger teuere Gasimporte und das Erfüllen von Klimazielen im Stromsektor.
www.pv-magazine.de/2025/09/05/d...
Join me and @runonclimate.bsky.social at our NYC Climate Week happy hour to talk about how we can move local climate policy forward! Look forward to seeing you there!
We'll be in New York on September 25 for happy hour at Climate Week NYC, hosted by Climate Group! 🗽
Come connect with us and learn about our support for local climate policy. 🌳
Get your tickets for free here! 👇
🔗: www.eventbrite.com/e/run-on-cli...
#climateweeknyc #climatechange #runonclimate
Come connect with us and learn about our support for local climate policy. 🌳
Get your tickets for free here! 👇
🔗: www.eventbrite.com/e/run-on-cli...
#climateweeknyc #climatechange #runonclimate
September 12, 2025 at 2:43 PM
Join me and @runonclimate.bsky.social at our NYC Climate Week happy hour to talk about how we can move local climate policy forward! Look forward to seeing you there!
Looking forward to working with Matt and supporting his climate policy goals!
Our LCPN is growing! We’re excited to welcome #Bloomington, IN Council member Matt Flaherty into our Local Climate Policy Network. 🌱
Read more about Matt, and the rest of our LCPN at runonclimate.org/our-network
#indiana #climatepolicy #localchange #climatechange #runonclimate
Read more about Matt, and the rest of our LCPN at runonclimate.org/our-network
#indiana #climatepolicy #localchange #climatechange #runonclimate
September 10, 2025 at 5:28 PM
Looking forward to working with Matt and supporting his climate policy goals!
Reposted by Peter Jarka-Sellers
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...
NYT just covered it. 1/n
www.nytimes.com/2025/08/25/c...
Law Firm Pressures Brown University to Erase Research on Anti-Wind Groups
www.nytimes.com
August 25, 2025 at 11:32 AM
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...
NYT just covered it. 1/n
www.nytimes.com/2025/08/25/c...
Reposted by Peter Jarka-Sellers
#SteelNewsWatch
Pediatric asthma ER visits dropped 40% after a coking coal plant near Pittsburgh shuttered, @kiley.bsky.social reported.
Continued coal-based steel production means ongoing health problems. Clean alternatives are available now. It’s time to make responsible choices.
bit.ly/3HtxIgf
Pediatric asthma ER visits dropped 40% after a coking coal plant near Pittsburgh shuttered, @kiley.bsky.social reported.
Continued coal-based steel production means ongoing health problems. Clean alternatives are available now. It’s time to make responsible choices.
bit.ly/3HtxIgf
Kids in Pennsylvania Are Breathing (Much) Easier After a Coal Plant Shuttered - Inside Climate News
Pediatric asthma ER visits dropped 40 percent after a coal processing plant near Pittsburgh closed down, researchers found.
bit.ly
August 21, 2025 at 10:39 AM
#SteelNewsWatch
Pediatric asthma ER visits dropped 40% after a coking coal plant near Pittsburgh shuttered, @kiley.bsky.social reported.
Continued coal-based steel production means ongoing health problems. Clean alternatives are available now. It’s time to make responsible choices.
bit.ly/3HtxIgf
Pediatric asthma ER visits dropped 40% after a coking coal plant near Pittsburgh shuttered, @kiley.bsky.social reported.
Continued coal-based steel production means ongoing health problems. Clean alternatives are available now. It’s time to make responsible choices.
bit.ly/3HtxIgf
A great story about how local policy makers can push their communities and utilities to electrify.
“Here’s a great place to fight National Grid.”
How one small town is battling gas development and galvanizing support for electrification, from @emilypont.bsky.social.
How one small town is battling gas development and galvanizing support for electrification, from @emilypont.bsky.social.
How Newton, Massachusetts Got National Grid to Bend on Electrification
It took a lot of scrutiny and a lot of patience, but the city council is finally making progress against natural gas infrastructure.
heatmap.news
July 23, 2025 at 2:35 PM
A great story about how local policy makers can push their communities and utilities to electrify.