Extreme Temperature Diary- Sunday September 21st, 2025/Main Topic: ‘Sun day’: US climate Activists Rally for Clean Energy Amid Trump Attacks

TODAY is Sun Day! ✴️ Thousands of people are coming together at 469 events across the U.S. and beyond to celebrate the power of clean energy. Today shines a bright light on the future that we all want – a cleaner, fairer, future for all. ☀️ Join an event near you today: sunday.earth

Sun Day (@sundayofaction.bsky.social) 2025-09-21T12:42:00.476Z

If you're housebound today (or in South Dakota, where there's no event), join us for a virtual Sun Day extravaganza!actionnetwork.org/events/think…

Bill McKibben (@billmckibben.bsky.social) 2025-09-21T14:40:44.395Z

‘Sun day’: US climate activists to rally for clean energy amid Trump attacks | US news | The Guardian

US news

‘Sun day’: US climate activists to rally for clean energy amid Trump attacks

Some 450 events are planned across the US this Sunday to celebrate growth of solar power and energy efficiency

US news

‘Sun day’: US climate activists to rally for clean energy amid Trump attacks

Some 450 events are planned across the US this Sunday to celebrate growth of solar power and energy efficiency

Dharna Noor

As the Trump administration wages an all-out assault on climate protections and renewable energy, activists are gearing up for demonstrations this Sunday to hype up solar power and energy efficiency.

The national “day of action”, called Sun Day, will be spearheaded by the veteran climate activist Bill McKibben.

“Trump has aimed squarely at clean energy,” McKibben told the Guardian. “So we need to fight back, and in this case we get to play not just defense but offense too.”

Since retaking the White House in January, Trump has launched more than 150 anti-environmental and anti-renewable energy actions. In McKibben’s view, the fossil fuel industry, which donated massively to Trump’s presidential campaign, is pushing for these moves because they are scared of the threat of fossil-free power.

“The reason big oil has Trump pushing so hard is that they realize the sudden, deep threat of renewable energy, that it’s growing faster than any energy source in history, and starting to take serious market share,” he said. “The ball has begun to roll downhill and we’ve got to push and push to make it go faster, so it has some hope of even beginning to catch up with the physics of global warming.”

The event organizers say it could be one of the largest environmental mobilizations of the decade. But it will look different than the climate marches of years past, which have sought to defend regulations and science from corporate interests. (The day before Sun Day, activists will take up that familiar format at the Make Billionaires Pay march in New York City.)

Instead, Sunday’s 450-plus actions nationwide demonstrations will highlight the promise of renewable energy. In Virginia, Habitat for Humanity will install solar panels on affordable homes while a public school district rolls out an electric school bus fleet. In New Hampshire, a band will play a show with amplifiers powered by electric Ford F-150 trucks.

McKibben will spend the day in New York City’s Union Square Park alongside notables like the actor-activist Jane Fonda; city comptroller Brad Lander; and Grammy-nominated singer and actress Antonique Smith who will perform the Beatles’ Here Comes the Sun, which is also the name of McKibben’s new book on renewable power.

“In some places, Sun Day will be about fighting new gas pipelines,” McKibben said. “But everywhere it’s about making clear that this is no longer ‘alternative’ energy but instead the clear path forward. That is the greatest threat by far to the fossil fuel industry.”

Oregon will host its largest ever clean energy celebration featuring Indigenous dancers, while Minnesota will see theatrical performances and Washington DC advocates will host tours of solar-powered homes. And in New Paltz, New York, the mayor’s office will unveil a new net-zero fire station. Other large demonstrations will take place in Berkeley, California; Chicago, Illinois; Asheville, North Carolina; Boston, Massachusetts; and Tucson, Arizona.

The protests follow news that US planet-warming pollution rose in the first half of 2025. In recent months, the Trump administration has announced plans to roll back virtually all climate regulations, worked with Republicans to phase out Biden-era clean energy credits, and issued stop work notices for wind farm projects – including one that was 80% completed – as part of an all-of-government approach to end the growth of offshore wind.

These actions have not managed to halt renewable energy growth. In March, the US generated less than half of its energy from fossil fuels for the first time.

Still, Sun Day’s approach is not without critics, with some arguing that the optimistic, sunny demonstrations could feel tone-deaf amid Trump’s environmental attacks.

Jamie Henn, a climate activist who co-founded the environmental non-profit 350.org with McKibben who is organizing Sun Day, says he has seen the critiques.

“I’ve actually sort of felt it myself,” he said. “I mean, I’ve worked mostly in the anti-fossil fuel space for most of my career.”

But successful social movements should be able to not only name villains but also celebrate solutions and foster hope, said Henn.

“You see that in civil rights movement, obviously, with both standing up to Jim Crow and racism, but also having King say, I have a dream,” he said. “You see it in the LGBTQ movement with Harvey Milk saying, you have to give them hope.”

He believes the framing could help bring new allies into the climate fight, such as people who might be scared to attend a traditional march – and especially risk arrest – amid Trump’s crackdowns on peaceful protest, or those who are not moved by the villainization of big oil bosses.

“There’s a whole host of people in the Yimby world who aren’t going to show up to a march against fossil fuels, but totally will get to work building solar,” said Henn, referring to pro-development activists who have adopted the acronym “yes in my back yard”. “If that stops a gas pipeline from getting built, then great.”

McKibben believes the event could also help the climate movement reach traditional American conservatives, who “often think of their home as their castle and like the idea of an independent power supply” that household solar panels can provide.

“That was why three months ago Utah became the first state to legalize the balcony solar now so common in Europe,” he said. “And they’re interested in free markets – that’s why Texas is now the fastest-growing clean energy state in the union.”

Henn hopes the demonstrations will be energizing.

“It’s been a super-hard year,” he said. “But seeing people show off the solutions that they’re creating in their community? That gives me a lot of hope.”

EUROPEAN HEAT WAVEThe heat is moving East with exceptional records in Poland,Slovakia,Belarus,Baltic countries (minimums up to 18C !) and Balkans.Next night will be historic in those areas, before the cold front "chases" the hot air mass.

Extreme Temperatures Around the World (@extremetemps.bsky.social) 2025-09-21T18:21:29.841Z

INCREDIBLEMinimum temperature was 18.4C at Skalnate Pleso almost 1800m asl in SLOVAKIA Tatras,ITS WARMEST NIGHT IN HISTORY tied, not even any summer heat wave had anything higher.Also Minimum 10.7C Lomnicky Stit 2635m: Sept record !But it'll snow in few days

Extreme Temperatures Around the World (@extremetemps.bsky.social) 2025-09-21T12:13:40.149Z

HISTORIC EVENT GOING ON IN EUROPEThe most record breaking European event in history.Hundreds of records are being brutalized in all central europe with the warm air moving East.Since Sept 1st records have been falling from South to North from West to EastOnly Italy has been totally recordless.

Extreme Temperatures Around the World (@extremetemps.bsky.social) 2025-09-21T01:34:44.447Z

EXTRAORDINARY HEAT WAVE IN EUROPEHundreds of records brutalized everywhere with up to 4/5c margins, it's arguably one the most extreme events Europe has ever seen>33C in Poland,tropical nights at 1800m in Austria,all time records smashed..👇Never happened anything like this in September.

Extreme Temperatures Around the World (@extremetemps.bsky.social) 2025-09-20T19:03:20.239Z

Among the historic records we note Dresden with its first tropical night in September and Leipzig with data from 1864 with a min of 19.2C,The previous record in Leipzig was set in September 1872 !

Extreme Temperatures Around the World (@extremetemps.bsky.social) 2025-09-21T12:08:35.207Z

Records warm night currently falling in Germany,Poland, Czechia,Slovakia,Slovenia,Austria…With ridiculous margins up to 5C above their previous September records and in some cases, even above summer records (never happened that late before in 2+ centuries of climatic history).Updates on Sunday

Extreme Temperatures Around the World (@extremetemps.bsky.social) 2025-09-21T01:37:02.375Z

Some of the most important monthly records today in this insane unbelievable day in AUSTRIA which rewrote European climatic history List Courtesy of Thierry Goose

Extreme Temperatures Around the World (@extremetemps.bsky.social) 2025-09-20T19:28:28.622Z

RECORD HEAT IN WESTERN AFRICAAfter the record heat in the Canary Islands,Morocco,Sahara and Mauritania,SENEGAL was also affected:The northern coastal town of Saint Louis later this week recorded a Minimum of 29.2C:its hottest night in history (data since 1880s)

Extreme Temperatures Around the World (@extremetemps.bsky.social) 2025-09-21T17:11:22.570Z

SOUTHEAST ASIA RECORD HEATRecord heat never ends in Southeast Asia: since March 2023 records have been falling every single day.Today new September records:THAILAND🇹🇭👑36.2 Koh Hong record broken 2 times in a rowINDONESIA 🇮🇩🕌Min 25.8 Palangkaraya Sept hottest night

Extreme Temperatures Around the World (@extremetemps.bsky.social) 2025-09-21T14:05:59.281Z

ENDLESS RECORD HEAT IN JAPANHot and humid conditions day and night continue with a stifling Minimum of 28.2C at Moriyama:September hottest night in historyHeat will get worse next week with hazardous hot and humid conditions in most of Japan

Extreme Temperatures Around the World (@extremetemps.bsky.social) 2025-09-21T09:26:51.611Z

SOUTH AMERICA HEAT WAVEBrutally hot night in PARAGUAY🇵🇾:Minimums up to 28.6C, but next night is the goat..and can be the hottest September night in all Hemisphere history !In ARGENTINA🇦🇷 Monthly record broken at Oranwith 42.3CTomorrow will be historic

Extreme Temperatures Around the World (@extremetemps.bsky.social) 2025-09-21T00:30:34.865Z

Over 100 tons of dead fish in the port of Volos in central Greece, following a mass die-off attributed to extreme climate fluctuations. This isn't normal. No time to wait. #ActOnClimate#climate #energy #renewables

Mike Hudema (@mikehudema.bsky.social) 2025-09-19T18:07:04.899Z

'Cheap cars, supersonic jets and floating power plants: Undercover in #Saudi Arabia’s secretive program to keep the world burning oil'#climateclimate-reporting.org/undercover-s…

Dr Paul Dorfman (@drpauldorfman.bsky.social) 2025-09-19T11:34:39.861Z

Troubling scenes from an Arctic in full-tilt crisis.The heat that hit Svalbard in February was so intense that scientists could dig into the ground with spoons, "like it was soft ice cream."grist.org/climate/trou…#Arctic #Climate #Ice #Water #Heat #Norway #Permafrost

Grist (@grist.org) 2025-09-18T18:58:11.391Z

"the #climate movement’s top priority must be the destruction of fossil capital. To the extent that hype around geoengineering or carbon removal distracts from this central task, it is making our predicament worse"

Dr. Aaron Thierry (@thierryaaron.bsky.social) 2025-09-17T04:26:43.781Z

In a plot of the Amazon CO2 emissions went up under warm and drier conditions – moist conditions reduced them +4°C = +42-204% CO2 emissionsAmazon is on track to dry out so…Warming induces unexpectedly high soil respiration in a wet tropical forest www.nature.com/articles/s41…#climate

(@umsonst.bsky.social) 2025-09-21T07:40:10.166Z

It was hot today at the #DrawtheLine protest in Calgary – 27 degrees C. A reminder of what our future could be like unless we take climate action. I know I was melting out there in that heat! 🥵#climate #ableg #cdnpoli

JEmphatically (@jemphatically.bsky.social) 2025-09-20T21:50:15.994Z

youtube.com/watch?v=m994… “Kellie dropping a couple of truth bombs: international laws being abandoned & an authoritarian response to climate change in the future. Why is there so little public discussion?” #auspol #authoritarianism #AUKUS #climate #statecapture

(@coupdegraz7.bsky.social) 2025-09-21T05:36:50.350Z

TODAY:65+ actions taking place across Canada calling for climate justice, Indigenous sovereignty, rights for migrants, stopping the war machine, and people over profits.#DrawTheLine #Climate #cdnpoliDetails on all local actions:drawtheline.world/canada?r=CA&…

Stephen Thomas (@stephenjwt.bsky.social) 2025-09-20T12:50:56.394Z

Natural disasters 🌪️ continue to kill years after they happen! Indirect effects of natural disasters could explain the observed higher mortality in south east US 🇺🇸! Data can save lives!#science #data #climate 🧪 📊 🌍

Dr Alessio Veneziano (@aveneziano.bsky.social) 2025-09-21T08:47:50.430Z

Hey everyone who’s not a New Yorker but following the Mamdani phenomenon: here’s a great new update on NYC mayoral race + fantastic interview with NYC organizer @petesikora.bsky.social linking #climate and affordable housing in the campaign. Master class in messaging. youtu.be/13yZsstG6Es?…

Dr. Sandra Steingraber 🏳️‍🌈 (@ssteingraber1.bsky.social) 2025-09-19T15:41:18.083Z

Another photo from the #DrawtheLine protest in Calgary today.#climate #ElbowsUp #ableg #cdnpoli

JEmphatically (@jemphatically.bsky.social) 2025-09-21T02:28:10.744Z

Two monsters. Both on the other side of the World. Left: Super Typhoon #Ragasa in the West Pacific with 160 mph winds. Right: Typhoon #Neoguri in the West Pacific winds 145 mph. While the Atlantic tries to find its legs, the West Pacific is lit up!

Jeff Berardelli (@weatherprof.bsky.social) 2025-09-21T07:49:39.869Z

Why is hurricane season so quiet? The big issue is lack of rising air in the Tropical Atlantic.Left: Vertical instability has been very low, meaning lack of unstable rising air. Right: the pressure has been very high. High pressure causes sinking air, whereas low pressure causes storms to form 1/

Jeff Berardelli (@weatherprof.bsky.social) 2025-09-19T01:19:04.910Z

💥 NEW NUMBER-CRUNCHING REPORT from Oil Change Int’l @oilchange.bsky.social The U.S. federal government is giving the fossil fuel industry $34.8 billion every year. *blinking emoji*#Climateoilchange.org/publications…

Dr. Sandra Steingraber 🏳️‍🌈 (@ssteingraber1.bsky.social) 2025-09-19T18:14:02.294Z

“We didn’t know if it was gonna bring more rain or deter the rain from getting here, or bring in hail storms. You get acreage of glass panels – we’re concerned it could just change the atmosphere.”“It was the smart meters”…causes her headaches, brain fog & pain..my idle cellphone “burns” her legs’

Commercial Solar Guy (@commercialsolarguy.com) 2025-09-21T14:39:26.527Z

Celebrating the fifth anniversary of installing solar panels on our church. We produce as much power as is used in 5 homes each year, save money, and provide clean power at a discount to a non-profit partner through community solar. So much winning!

Tony Dutzik (@frontiertony.bsky.social) 2025-09-21T18:29:48.260Z

We are getting left behind, meanwhile money and power is blowing away in the wind.#cdnpoli #uspoli #climate #energy #tech

Ben West 🦋 (@benwest.bsky.social) 2025-09-21T14:16:59.010Z

Why doesn't every parking lot get a #solarpower upgrade? We have so many solutions to this crisis. Stop the delays and vote for a leader that will implement them. #ActOnClimate #vote#ClimateEmergency #Climate #energy #renewableenergy #renewables #GreenNewDeal

Mike Hudema (@mikehudema.bsky.social) 2025-09-21T18:07:03.428Z

Defending the Earth is deadly work. A new report illuminates how much. #Climate

Climate Tracker (@climate.skyfleet.blue) 2025-09-17T08:42:40.158Z

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