Reposted by Sam BlochAlissa Walker @awalkerinla.bsky.social · 02/10/2026There's another reason that the Bass campaign definitely wants to discredit this "outlier" poll. Crosstabs are out and "fixing streets, sidewalks, streetlights and other city infrastructure" is listed first across the board as the top priority for LA voters. Even above homelessness and crime! 35320
Reposted by Sam BlochAlissa Walker @awalkerinla.bsky.social · 30/09/2026Next up is a report from Office of Major Events on Kick It in the Park activations that drew 45,000 people to 100 watch parties. Hard to see that middle panel: 84% of surveyed attendees said they’d come back to their local park more often if the temporary shade structure was made permanent 152
Sam Bloch @samkbloch.bsky.social · 27/09/2026Getting cars off the road and greening the streets is easily the most effective way to cool a city and an obvious outgrowth (pun) of traffic calming that's already underway. Instead of dithering on an urban forest “plan” Mamdani should make like Paris and get this done in a comprehensive way now 030
Reposted by Sam BlochCarl Quintanilla @carlquintanilla.bsky.social · 23/09/2026“.. Put your hand behind your computer and you feel the heat coming off that fan,” said Sailor. “Now, imagine if you had 1,000 computer [fan] blades in your office — 10,000, 100,000, several hundred thousand .. that’s the amount of heat that we’re talking about.” www.bloomberg.com/graphics/202... 22432180
Reposted by Sam BlochMark Gongloff @markgongloff.bsky.social · 23/09/2026Urban heat island effects are bad enough. Clustering data centers in cities, each of which can produce the heat of 54,000 houses, will make it exponentially worse, especially in already hot places like Phoenix Gift link to this great @bloomberg.com infographic: www.bloomberg.com/graphics/202...bloomberg.comAI Data Centers Release Heat, Posing New Problem for CitiesAs facilities to power AI grow larger and are built in clusters, they are spreading hot air beyond their property lines 914198
Sam Bloch @samkbloch.bsky.social · 16/09/2026Same for his urban forest "plan," which was a list of 100 ideas without any budgets, locations or timelines 120
Reposted by Sam BlochFrederick Deknatel @freddydeknatel.bsky.social · 08/09/2026Since it’s always a scandal when politicians fabricate stories about their past, Trump making up where he was on 9/11 like this will definitely be a scandal, I’m sure — and a bigger headline than whether or not Mayor Mamdani will attend memorial services at ground zero on Friday. Right? 001
Sam Bloch @samkbloch.bsky.social · 06/09/2026“The city must invest in its shade canopy, Raman said — not just by planting trees, but by budgeting more to water and care for those trees to make sure they don’t die off." And where would Raman get the money? "We’re giving out big raises to LAPD." www.climatecoloredgoggles.com/p/nithya-ram...climatecoloredgoggles.comLos Angeles deserves a new mayorCare about climate change? Then vote for Nithya Raman. 070
Sam Bloch @samkbloch.bsky.social · 02/09/2026“It prompts the question: What if something that was authentically New York City, made by a ‘real New Yorker,’ was also wack as fuck?” 010
Sam Bloch @samkbloch.bsky.social · 01/09/2026Comprehensive, and possibly novel, new NPR story that appears to be an original peer-reviewed study (!!) showing what many in the heat space already know — heat deaths are seriously undercounted in the United States www.npr.org/2026/08/31/n...npr.orgNPR spent 2 years tracking deaths from heat. We found a staggering hidden tollAn NPR investigation found that people in the U.S. are dying from heat much more often than official counts show. We explore the reasons why — and how lives can be saved. 113352
Reposted by Sam BlochMike Eliason @holz-bau.bsky.social · 21/08/2026our infrastructure was built for a climate that no longer exists and good grief... painting everything white does not fix this sh*t however - immediately curbing fossil fuel usage does www.washingtonpost.com/business/202...washingtonpost.comWhy one highway exploded this summer — and why many more are at riskHotter summers are wreaking havoc across transportation infrastructure. One solution: Paint everything white. 34312
Sam Bloch @samkbloch.bsky.social · 19/08/2026Good post about canopy loss in Chicago and Portland’s poorest, hottest neighborhoods, probably due to lack of care. It’s long past time for cities to treat trees as capital assets with dedicated maintenance budgets messaging-custom-newsletters.nytimes.com/dynamic/rend...messaging-custom-newsletters.nytimes.comClimate: Saving Old Trees Might Save Lives 076
Reposted by Sam BlochStephen Jacob Smith @stephenjacobsmith.com · 12/08/2026Insane that British preservationists will stop you from installing exterior shades on windows open.spotify.com/episode/5b7F... 4172
Sam Bloch @samkbloch.bsky.social · 22/07/2026Once again, shame on OLIN, Hudson River Park Trust, and everyone else involved in Pier 26 at Hudson River Park, a new waterfront playground that isn’t just hotter than the rest of the neighborhood but basically unusable on days like today, unless you're hiding under the play equipment, in the shade 3122
Reposted by Sam BlochFrederick Deknatel @freddydeknatel.bsky.social · 14/07/2026Great reporting that is unfortunately wrapped up in lots of euphemism to avoid one obvious word: corruption. 084
Sam Bloch @samkbloch.bsky.social · 10/07/2026Terrific @lloydalter.bsky.social column today about 78°F * It’s a metric invented by the air conditioning industry as a limit of effectiveness for their machines * 78°F is not hot and is perfectly comfortable in light clothing * People can tolerate up to 95°F and still feel comfortableopen.substack.comNo, 78°F is not communism. It's not even hot.Those commies at ASHRAE set 78° at the high end of "comfortable." Now, a nation at war can't make the smallest sacrifice to reduce demand or help stabilize the grid. 100
Reposted by Sam BlochAgainst the Grain @radioagainst.bsky.social · 07/07/2026Environmental journalist @samkbloch.bsky.social discusses the ways that cities used to be designed for shade, and stresses the urgent need for shelter from the sun — especially for the unhoused, farm workers, and others who labor outdoors. kpfa.org/episode/agai...kpfa.orgIn Search of Shade | KPFAFossil fuel combustion has made dangerous heat waves ever more frequent. The short term answer — for those who have it — is to turn on the air conditioner. But air conditioning makes the the problem e... 024
Sam Bloch @samkbloch.bsky.social · 02/07/2026Important article in @heatmap.news about the risks of chronic and non-extreme heat. 80% of heat deaths in NYC occur on days below 95 degrees — and we have about three weeks more of those days than we did a generation ago heatmap.news/adaptation/h...heatmap.newsThis Heat Wave Is Just a TestCities like New York, Philadelphia, and Toronto will see more days like this — but the effects of chronic not-so-extreme heat also build up. 062
Reposted by Sam BlochHow-Sen Chong @how-sen.com · 02/07/2026Cars are one of the reasons why cities get so much hotter. An average gasoline car can produce 3.9 MJ of waste heat for *every kilometre* it drives. That’s enough to raise the temperature of a 665 sqft apartment twenty degrees centigrade.mass.streetsblog.orgExhaust Pipes Are Making Heat Waves Much, Much Worse - Streetsblog MassachusettsThe long-term climate impacts of the climate pollution from cars and trucks are well documented, but the daily short-term effects of the wasted heat energy radiating from engine blocks and exhaust pip... 1918273
Sam Bloch @samkbloch.bsky.social · 28/06/2026Insane story about how L.A. can’t afford to build accessible sidewalks and is instead using those ballot-mandated dollars to surface roads in neighborhoods where there are no sidewalks at all! open.substack.com/pub/lareport...open.substack.comCrackedWhy did Los Angeles design a street repaving plan that prioritizes Bel Air over Boyle Heights? Not for the reasons you might think. 000
Sam Bloch @samkbloch.bsky.social · 27/06/2026Where’s that tweet that says Paris has its own Barton Springs? 010
Sam Bloch @samkbloch.bsky.social · 26/06/2026This is why cities need old tenements and rusty awnings. Hard surfaces can reach extreme temperatures when exposed to the sun, while shaded hard surfaces stay dramatically cooler. This is the effect of sun and shade in one image. Hard surfaces absorb and radiate heat, while shade reduces it. 121
Sam Bloch @samkbloch.bsky.social · 25/06/2026Respectfully, this image actually shows why cities need shade. You could make this same graphic with a huge building instead of that tree and the temperatures would be even cooler! 020
Reposted by Sam BlochSludge @sludge.bsky.social · 22/06/2026NEW: Palantir has gone on a Democratic lobbyist hiring spree, picking up Hakeem Jeffries' former chief of staff, a top DCCC fundraiser, and a former Democratic senator to push its interests in Washington DC. readsludge.com/2026/06/22/p...readsludge.comPalantir Goes on a Democratic Lobbyist Hiring SpreeThe ICE contractor has hired Hakeem Jeffries' former chief of staff and a former Democratic senator as it builds out a Democratic lobbying operation on Capitol Hill. 52487276
Sam Bloch @samkbloch.bsky.social · 22/06/2026“If I were mayor, my first executive order would be to apply exterior solar shading on all buildings.” www.theguardian.com/world/2026/j...theguardian.comFrom mobile jungles to shadow art: how Dutch people try to beat the heatA national heatwave plan has been activated to help people stay cool during the Netherlands’ increasingly hot summers 0125
Sam Bloch @samkbloch.bsky.social · 21/06/2026“Running through the city’s civic veins is a deep distrust of elected leadership and executive power … They designed a government that put no one in charge by putting everyone in charge.” open.substack.com/pub/lareport...open.substack.comHow to not get things done in LAEven a strong mayor can't overcome a weak city. 000
Sam Bloch @samkbloch.bsky.social · 19/06/2026New from me in @nyc.streetsblog.org: Why did the city design a climate adaptation project that actually made extreme heat even worse? nyc.streetsblog.org/2026/06/18/w...nyc.streetsblog.orgTree-Mendous: City Officials Must Do More To Create Shady Conditions As Temps Soar - Streetsblog New York CityIn the near future, the city could easily face two months of dangerous heat, every year. Extreme heat is becoming an annual fact of life in New York. 1113
Sam Bloch @samkbloch.bsky.social · 19/06/2026There it is: "Researchers found that three minutes lowered athletes’ core temperature by about 0.72 F during simulated soccer ... This happened in ideal conditions where they drank 350 to 400 milliliters of cold water and draped a cold towel on their shoulders." apnews.com/article/fifa...apnews.comFIFA hydration breaks have sparked criticism from different groups. But what do they actually do?FIFA’s new hydration breaks midway through each half were implemented to help players stay cool in the summer heat of Mexico, Canada and the United States, which some experts have warned could be the ... 000
Reposted by Sam BlochStreetsblog NYC @nyc.streetsblog.org · 18/06/2026If the city is serious about adapting to climate change, it needs to design public spaces not just for the next storm, but also for the next hot day.buff.lyTree-Mendous: City Officials Must Do More To Create Shady Conditions As Temps Soar - Streetsblog New York CityIn the near future, the city could easily face two months of dangerous heat, every year. Extreme heat is becoming an annual fact of life in New York. 1447
Sam Bloch @samkbloch.bsky.social · 12/06/2026Why does FIFA insist on afternoon matches in peak heat? TV contracts. 3pm in the US is 8pm in London and 9pm in Paris and Berlin — European primetime. FIFA deliberately assigned the highest-profile matches to align with that schedule yaleclimateconnections.org/2026/06/the-...yaleclimateconnections.orgThe 2026 World Cup could be the hottest yet » Yale Climate ConnectionsA new analysis finds climate change is increasing the odds of dangerous heat during many 2026 World Cup matches, putting players, fans, and workers at greater risk. 051
Sam Bloch @samkbloch.bsky.social · 11/06/2026These heat regs, like almost every other I'm aware of, reek of non-scientific negotiation and compromise. I'd love to see the study that demonstrates the cooling effects of a three-minute break 121
Sam Bloch @samkbloch.bsky.social · 10/06/2026Sickening new study from ASU about data center waste heat * Discharge warm air 14-25 degrees above normal * Equivalent to 40,000 household emissions * Raise air temperature by 4 degrees within five city blocks * Which leads to more AC cranking and more waste heat news.asu.edu/20260518-env...news.asu.eduTurning down the heat from data centers | ASU NewsHeat pollution from data centers can boost air temperatures in downwind neighborhoods by as much as 4 degrees Fahrenheit, researchers at Arizona State University report in a new study conducted in the... 013
Sam Bloch @samkbloch.bsky.social · 08/06/2026CPRA’s not dead, long live CPRA. Another great entry in the mayor’s race drama courtesy of the muckrakers at @lamaterial.bsky.social lamaterial.com/p/raman-pass... 010
Reposted by Sam BlochStreetsblog L.A. @streetsblogla.bsky.social · 05/06/2026Apparently to avoid ADA & #MeasureHLA, L.A. City is now only repaving streets without sidewalks. This means the city is repaving streets in well-off neighborhoods, even many blocks where the pavement is already in good shape & doesn't need to be repaved. la.streetsblog.org/2026/06/04/l...la.streetsblog.orgL.A. City Shifts Repaving Practice (Again), Now Repaving Only Streets With No Sidewalks - Streetsblog Los AngelesIn an apparent attempt to avoid complying with accessibility and multimodal requirements, L.A. City is now repaving streets in well-off suburban neighborhoods. Many of these streets are already in goo... 38934
Sam Bloch @samkbloch.bsky.social · 24/05/2026He's right to suggest this for New York, one of the few American cities that has narrow streets and enough pedestrians to appreciate the intervention. Would never work in the hot and arid cities where it’s needed most (Phoenix, Las Vegas, L.A., etc.) because of sprawl 2436
Reposted by Sam BlochDaniel Aldana Cohen @aldasky.bsky.social · 23/05/2026This is the "upstairs" counterpart to parklets, bike lanes, and other livable streets stuff at ground level. Last one: Sevilla, Spain. 18510
Sam Bloch @samkbloch.bsky.social · 24/05/2026“Shade shares the same environmental classification as toxic soil under California law … But as temperatures rise, shade should be recognized as essential infrastructure, something that should be treated similarly to power lines or sewers.” www.sfchronicle.com/opinion/arti...sfchronicle.comShade is good, actuallyOPINION: Shade shares the same environmental classification as toxic soil under California law. That was always absurd, but especially so in the age of climate change, Allison Arieff writes. 041
Reposted by Sam BlochMaria Bustillos @mariabustillos.com · 21/05/2026On Brown University's capitulation to the White House: when the walk doesn't quite match the talk. Absorbing, deeply reported post from alum and Hydra @davidrussellmoore.bsky.social flaminghydra.com/issue-569flaminghydra.comUniversity challengeDavid Moore on the capitulation of Brown University 02311
Reposted by Sam BlochFrederick Deknatel @freddydeknatel.bsky.social · 20/05/2026New in @hidden-cities.com: Hossam el-Hamalawy @barracks.substack.com on Sisi's vision of turning Egypt into one vast military camp, from the fortified new capital outside Cairo to an entire urban landscape shaped by mass surveillance and control. www.hidden-cities.com/p/how-sisis-...hidden-cities.comHow Sisi's Militarized Urbanism Is Remaking EgyptSisi's regime has securitized public spaces and built mass surveillance into urban planning in a quest to turn Egypt into the “perfect military camp.” 11312
Sam Bloch @samkbloch.bsky.social · 19/05/2026Shame on @nycparks.bsky.social, Mathews Nielsen, and everyone else involved with designing this new playground at Pier 42 in East River Park, an unshaded plastic monstrosity that’s not just hotter than the rest of the neighborhood but dangerous for everyone on hot days like this 6195
Reposted by Sam BlochFrederick Deknatel @freddydeknatel.bsky.social · 19/05/2026“We could have been building the transportation infrastructure of the future if we weren’t wasting it on higher fuel costs associated with a war that Americans mostly don’t want.” Americans have spent more than $40 billion extra on fuel since the start of Trump’s war. www.ft.com/content/32ff...ft.comIran war hits Americans with $40bn fuel billExtra spending on petrol and diesel exceeds cost of repairing country’s bridges or rebooting air traffic control 034
Reposted by Sam BlochMike Lydon @mikelydon.bsky.social · 17/05/2026Turning bus stops into micro forests is possible simply by bumping out the curb for in-lane stops. Shade ✅ Shelter ✅ Stormwater capture ✅ Smoother bus ops ✅ 0193
Sam Bloch @samkbloch.bsky.social · 15/05/2026“It’s time to take climate intervention strategies more seriously, and rigorously evaluate the risks of these strategies against the risks of failing to intervene.” heatmap.news/am/stardust-...heatmap.newsThe World’s First Major Geoengineering Startup Unveils its TechnologyOn Cleveland’s rejection, Cuba’s energy crisis, and U.S. LNG exports 000
Sam Bloch @samkbloch.bsky.social · 29/04/2026Someone on this project told me a real estate type declared — pointing to the HR&A study that projects $1 billion in tax revenue — “you can’t have democratic socialism without Park Avenue!” www.nytimes.com/2026/04/29/n...nytimes.comNew York City Announces Proposed Designs for Park Avenue Overhaul 010
Sam Bloch @samkbloch.bsky.social · 23/04/2026" The pattern that we see again and again is that the tree caught fire from the structure rather than the other way around." laist.com/news/climate...laist.comAs California debates Zone Zero, researchers want to know: Can trees protect homes from fire?A surprising pattern has emerged as a team of researchers monitors trees in the Eaton and Palisades fire burn zones to understand a new era of urban fires. 000
Reposted by Sam BlochPlaces Journal @placesjournal.bsky.social · 21/04/2026Benches are microcosms of an expansive debate about who belongs in urban public spaces. When they are removed or made uninviting, we lose more than just a place to rest. From journalist Gabrielle Bruney: "The Disappearance of the Public Bench"placesjournal.orgThe Disappearance of the Public BenchBenches are microcosms of an expansive debate about who belongs in urban public spaces. When they are removed or made uninviting, we lose more than just a place to rest. 316164
Sam Bloch @samkbloch.bsky.social · 21/04/2026“The plan is great, but what comes after is the most critical part,” said Shravanthi Kanekal, a resiliency planner at the New York City Environmental Justice Alliance. “It’s going to signal a whole lot to see how much they dedicate funding to the plan.” 000
Sam Bloch @samkbloch.bsky.social · 21/04/2026Mecca, Bangkok, Mount Isa, Seville: All these cities suffered lethal heatwaves in recent years. A new study finds they were survivable in shade www.nature.com/articles/s41...nature.comDeadly heat stress conditions are already occurring - Nature CommunicationsThe authors use a physiological approach, finding recent extreme heat events had deadly heat stress conditions, particularly for fully exposed older people. Conditions were well below wet-bulb tempera... 000
Sam Bloch @samkbloch.bsky.social · 20/04/2026"Perversely, children are disappearing from our cities at precisely the time that great efforts are being made to make them more child-friendly. Street design for children is improving across Europe and the world, and lower inner-city speed limits are making them safer." www.ft.com/content/c406...ft.comWhat is a city without children?As urban housebuilding strategies around the world increasingly push families out, the ‘sidewalk ballet’ — and heart — of community life is under threat 010