Termination Shock Risks with Francisco Estrada
YouTube video by Climate Chat
Sunday 2/8 at 10am PT on Climate Chat: "Risks of Termination Shock" with climate scientist Francisco Estrada. Hosted by @leonsimons.com.
#TerminationShock #SRM #ClimateCrisis
@bikingmzstacey.bsky.social @radsci.bsky.social
youtube.com/live/Q6XpRrm...
06.02.2026 06:58 β π 18 π 7 π¬ 2 π 2
For a long time Iβve thought that severe traffic injuries and deaths should mean that location is closed to cars - ideally permanently. In the case of Pretti & Good, itβs absolutely the right thing to do. Turn that spot into a garden or park instead.
01.02.2026 07:29 β π 2 π 0 π¬ 0 π 0
Just incredible
@biketalk.bsky.social
01.02.2026 07:22 β π 1 π 0 π¬ 0 π 0
Can SRM Prevent Tipping Points?
YouTube video by Climate Chat
Sunday 2/1 at 10am PT on Climate Chat "Can SRM Prevent Tipping Points?" with host Dan Miller. YouTube Link:
youtube.com/live/hywUpOx...
@LeonSimons8 @drivingmzstacey @radsci
#SRM #tippingpoint #ClimateCrisis
01.02.2026 02:38 β π 9 π 5 π¬ 1 π 2
Science vs. Economics on Climate Change
YouTube video by Climate Chat
Sunday 1/25 at 10am PT on Climate Chat: "Science vs. Economics on Climate Change" with host Dan Miller.
#ClimateChange #Economics #GlobalWarming
@leonsimons.com @bikingmzstacey.bsky.social @radsci.bsky.social
youtube.com/live/VK5aYGc...
25.01.2026 02:18 β π 13 π 9 π¬ 1 π 1
YouTube video by Climate Chat
Optimism Bias & Climate Change
Sunday 1/18 at 10am PT on Climate Chat: "Optimism Bias & Climate Change" (prerecorded). How optimism bias of those who believe in climate change leads to inaction.
@leonsimons.com @bikingmzstacey.bsky.social @radsci.bsky.social
#ClimateCrisis #psychology
youtu.be/XYb1T2-RmlQ
16.01.2026 12:28 β π 16 π 7 π¬ 1 π 0
Generations of Global Warming: A Dutch Perspective
YouTube video by Climate Chat
Sunday 1/11 at 10am PT on Climate Chat: "Generations of Global Warming: A Dutch Perspective" with host @leonsimons.com.
#GlobalWarming #ClimateCrisis
@bikingmzstacey.bsky.social @radsci.bsky.social
youtube.com/live/zmllNBR...
11.01.2026 01:24 β π 9 π 5 π¬ 1 π 0
Climate Chat Year In Review 2025
YouTube video by Climate Chat
Sunday 12/28 at 10am on Climate Chat: "Climate Chat Year in Review 2025". We'll discuss the top climate stories of the year & review the 2025 Climate Chat programs. What were your favorites?
@leonsimons.com @bikingmzstacey.bsky.social @radsci.bsky.social
youtube.com/live/uoUNmt-...
#ClimateChange
27.12.2025 17:39 β π 27 π 11 π¬ 0 π 1
VMT doesnβt matter if itβs close to eliminating the public health crisis of human driving and the planetary crisis of ICE vehicles.
24.12.2025 07:53 β π 0 π 0 π¬ 3 π 0
This popped up while I was writing replies to this thread. Seriously, Waymo is a solution, not a problem. go.citizen.com/PmXGOanwlZb
24.12.2025 00:31 β π 0 π 0 π¬ 0 π 0
Muni bus struck and injured a man who died last month after the ambulance in which he was being treated was reportedly blockaded by autonomous vehicles, officials announced Tuesday.
The San Francisco Municipal Transportation Agency and the San Francisco Fire Department told The Examiner in a joint statement that the Muni bus was stopped in the westbound lanes of Harrison Street near the intersection of Seventh Street just before 11 p.m. on Aug. 14 when a pedestrian crossed the street and "approached the rear of the bus."
The intersection where a 12-year-old boy was struck and killed by a Muni train Tuesday morning was long ago identified as a high-injury corridor, and city officials know itβs among San Franciscoβs most dangerous streets.
Andrew Wu, an Aptos Middle School student, was declared dead at the scene in Ingleside. The crash was reported at 8:28 a.m. near the intersection of San Jose and Lakeview avenues.
That intersection, according to the San Francisco Municipal Transportation Agency, was earmarked for traffic safety improvements last year as part of the program Walk First, but those improvements are not set for completion until the end of 2016.
93-year-old man died Monday from injuries suffered when he was struck by a cable car Sunday while walking in a crosswalk on Mason Street in San Francisco, police said.
The collision occurred at 3:10 p.m. near the intersection at Filbert Street, Police Department officials said.
The man, whose name was not immediately released, was crossing Mason Street in a marked crosswalk when the southbound cable car hit him, knocking him down and causing serious injury, police said.
Around 3 p.m. on Sept. 13, 2021, San Francisco resident Amy Adams, 41, boarded a 10-car BART train bound for the East Bay. Just before the train departed, though, Adams decided to hop off the train. When she exited the car, her dog, leashed to her backpack, stayed on board. The doors closed, and Adams was dragged down the platform until she struck a gate. She died of multiple blunt force traumas.
π― fewer cars are the answer. Waymo can help with that. And the technology should be put in the buses + trains.
π€π donβt pull money away from ped/bike/transit. They are π― privately funded, and enable people to give up their cars. Car-free people are more likely to walk/bike/take transit. We win.
24.12.2025 00:29 β π 0 π 0 π¬ 3 π 0
NSC Estimates Over 44,000 Traffic Deaths in 2024
National trend obscures dramatic regional differences in roadway safety challenges.
March 11, 2025
WASHINGTON, D.C. β Preliminary analysis from the National Safety Council shows an estimated 44,680 people died in preventable traffic crashes in the United States during 2024. This represents a slight decrease of less than 1% compared to 2023, with only 82 fewer deaths, indicating the crisis on U.S. roadways continues with little improvement.
Cry me a river over a *nearly* missed flight due to a completely preventable episode. Human driving should be eliminated.
24.12.2025 00:06 β π 0 π 0 π¬ 0 π 0
The woman was first hit by a HUMAN DRIVER and then βpopcornedβ over the Cruise car. No human driver could have avoided hitting her. The dragging is because the AV coβs were told to get out of the way instead of sitting in intersections when something happens. No one could have predicted that scene.
24.12.2025 00:04 β π 0 π 0 π¬ 1 π 0
Yep and this is coming from a cat lady.
24.12.2025 00:00 β π 0 π 0 π¬ 0 π 0
The most absurd thing. There is a βstopβ button and he could have called support from the car without a phone at any time. He just wanted his 15 minutes.
23.12.2025 23:51 β π 0 π 0 π¬ 1 π 0
Taxi strikes pedestrians in San Francisco, two women killed
AP logo Updated: 2:11 PM PDT May 23, 2022
Two women died after a taxi cab jumped the curb following a collision with another vehicle then struck pedestrians on a sidewalk at a busy San Francisco street corner, police said.
The crash happened around 4:30 p.m. Sunday in the South of Market neighborhood. San Francisco police said the taxi was involved in a collision with a Mercedes, then ended up on the sidewalk.
3 IN CRITICAL CONDITION AFTER TAXI CRASHES INTO PEDESTRIANS IN DOWNTOWN SAN FRANCISCO
By by Leslie Brinkley
Tuesday, August 23, 2016
SAN FRANCISCO -- Three people were critically injured when a taxi cab jumped a curb along San Francisco's Market Street.
The injured include the taxi driver, as well as two people who were standing on the sidewalk. The crash happened around 3 p.m., not far from the Montgomery BART station at Market Street near Sutter Street.
Witnesses say the yellow cab was flying down Market Street when it went over the curb at Sutter Street and crashed into an advertising kiosk and a shoeshine stand where two people were
Woman dies after being hit by taxicab in Downtown San Francisco
KGO logo
Saturday, August 10, 2019
Taxicab fatally strikes woman in Downtown San Francisco
A pedestrian died after being hit by a taxicab at Fifth and Market streets in San Francisco Saturday night.
SAN FRANCISCO (KGO) -- A pedestrian died after being hit by a taxicab in Downtown San Francisco Saturday night.
Around 8:50 pm officers responded to reports of a crash at Fifth and Market streets, according to San Francisco Police Department.
Student killed by S.F. taxi was 'confident and genuineβ teen
By Evan Sernoffsky,
Reporter
Updated April 19, 2015 8:46 p.m.
Not one bit.
23.12.2025 23:49 β π 0 π 0 π¬ 1 π 0
Drivers *rarely* go to jail when they fuck up. And Waymo doesnβt. It is *the safest* driver on the road.
23.12.2025 23:43 β π 0 π 0 π¬ 1 π 0
Cyclist killed in Southside Berkeley car crash Saturday
John Edward Muller, 65, was pronounced dead at a local hospital shortly after the crash, which happened shortly before 3 p.m. near Telegraph Avenue and Haste Street.
By Alex N. Gecan
Nov. 17, 2025, 3:29 p.m.
63-year-old cyclist dies after colliding with SUV in East Oakland
Witnesses say Hector Jose Ortega had run a stop sign and the SUV was speeding.
Avatar photo
by Jose Fermoso
Oct. 1, 2025, 4:49 p.m.
Bicyclist severely injured in hit-and-run crash in Oakland
By Crystal Bailey Published October 29, 2025 7:51pm PDT OaklandKTVU FOX 2
Bicyclist injured in hit and run in Oakland
The Brief
An Oakland man is suffering from a traumatic brain injury after being struck by a hit and run driver.
The crash happened on Friday at 8 p.m. and family members of the victim said they have no answers.
Family members ask the public to share any information they may have of the crash, captured on surveillance cameras in the area.
After Berkeley cyclist is killed in Oakland, bike advocates call for a safety fix
Hongmei Chen, a single mother, was killed by a large truck on Shattuck Avenue and 51st Street in Oakland while returning home from work.
By Jose Fermoso
Aug. 26, 2025, 11:04 a.m.
Please let us know when youβre going after human drivers, because they are the ones actually doing the damage. I dream of the only drivers on the road *everywhere* being Waymo.
23.12.2025 23:25 β π 2 π 0 π¬ 2 π 0
Now available on Climate Chat, our first "Climate Chat Shorts"! on Why SRM/Solar-Geoengineering is Required. This is the presentation only without Q&A.
#SRM #Geoengineering #ClimateCrisis
youtu.be/lmxsr6b5IhE
21.12.2025 21:37 β π 14 π 11 π¬ 2 π 1
The National Safety Council (NSC) estimated approximately 44,680 people died in U.S. traffic crashes during 2024, a slight dip (<1%) from 2023, but still a crisis level, with significant spikes in states like Maine, California, and Alaska. For the first half of 2024, deaths were around 20,900, showing little change from the previous year despite increased driving, highlighting the ongoing need for road safety improvements like the Safe System Approach.
Key Findings for 2024:
Total Estimate: Over 44,000 deaths, indicating a continuing problem.
First Half (Jan-June): About 20,900 fatalities, similar to 2023.
This summer I was hit while riding a bike in a bright green, parking protected bike lane. There are several deaths that have occurred within yards of that spot. All of them were caused by human drivers.
The acceptable amount of deaths is zero. Waymo is pretty much there. Meanwhileβ¦
21.12.2025 20:36 β π 0 π 0 π¬ 0 π 0
Do you know how many beloved pets human drivers kill in San Francisco and the world over? None of it is headline news. Waymo learns from its experience. Humans do not. And even if they did, all other humans do not learn.
21.12.2025 20:30 β π 0 π 0 π¬ 0 π 0
π―
It is really something to pick on the cautious learner (Waymo) all while ignoring the cold-blooded killers that drive among us.
21.12.2025 05:47 β π 2 π 0 π¬ 0 π 0
YouTube video by Stacey Randecker
Raja Whitfield Killer Driver - fast version
Only if there are things blocking the way. This is the type of stuff that goes on in the dark in SF.
youtu.be/VIH9z5Fuf9Q?...
21.12.2025 05:45 β π 0 π 0 π¬ 1 π 0
Put it in the buses and trains. Have current operators serve as concierges/attendants to help riders get where they are going, elderly/disabled with boarding, etc..
Registration, Parking of human driven cars should cost a jillion dollars and that should be enough to pay for excellent 24/7 transit.
21.12.2025 05:40 β π 4 π 0 π¬ 0 π 0
Pretty much the same issue. If cars arenβt moving - we are safer. If they do need to move, I want it to be Waymo rather than the typical driver.
21.12.2025 05:37 β π 2 π 0 π¬ 0 π 0
That human driving is unsafe? You betcha. Looking forward to it going the way of the horse & carriage.
21.12.2025 05:34 β π 2 π 0 π¬ 1 π 0
Human jobs over human lives? Yikes. Iβd rather live.
Are you also mourning the loss of the typing pool, elevator operators, fax machine repair workers, phone operators, etc??
There will always be *something* to be done. Slaying your fellow humans should not be part of that.
21.12.2025 05:32 β π 5 π 0 π¬ 2 π 0
Human driven cars kill over 40,000 people every year in the USA alone. I donβt think that really qualifies as things βworkingβ.
21.12.2025 05:27 β π 12 π 0 π¬ 5 π 0
Housing and transit fan. Anti fascism. My "bluesky posts" represent myself and do not represent my employer or any affiliated groups and organizations.
widow, dad to a senior pup & two kittens, bicycle enjoyer, militant queer
formerly @skttrbrain on twitter dot com
Find us on LinkedIn https://www.linkedin.com/company/srm360-org/
Supporting an informed, evidence-based discussion of sunlight reflection methods (SRM).
Where innovation meets action. As the state's primary energy policy and planning agency, we're driving California toward a clean, reliable, affordable, & equitable future.
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elle|ella|ela|sie|ΠΎΠ½Π°|ΰ€ΰ€Έΰ€ΰ₯|ε₯Ή|ΩΩΩΩ
husband, dad, focused on elevating American entrepreneurs and innovators to achieve energy abundance by deploying at scale. It's simple, not easy. https://www.linkedin.com/in/jigarshahdc/
Political Ecology @ Lund University. Climate mitigation politics, carbon removal and offsetting π¦ / Books: Overshoot (Verso, 2024); The Long Heat (Verso, 2025)
Follow me, I know the way - into the abyss π«
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Climate Systems Scientist
Website: PaulBeckwith.net
YouTube Channel: https://youtube.com/@paulhbeckwith?si=3ijcLGbn7mZgQZHM
I speak about climate futures, mitigation and adaptation in the face of the climate crisis. πΏπ¦
As a big fan of ephemeral social media posts delete after 60 days.
Signal: https://peterdutoit.com/signal
Website: https://peterdutoit.com
100% convinced weβre going to push that rock up and over the hill.
Views expressed here=my own.
Founder 350.org and Third Act, author The Crucial Years on substack https://billmckibben.substack.com/
Author of 21 books, beginning with The End of Nature
https://twitter.com/thijsniks
Climate scientist who believes that the world is simpler than it looks. Director of Global Systems Institute, University of Exeter
Director of Climate Science, Awareness and Solutions at Columbia University http://csas.earth.columbia.edu | Formerly Director of NASA GISS | jimehansen.substack.com
columbia.edu/~jeh1/
I write about the future of transportation. Autonomous vehicles, EVs, eVTOLs, etc. All the emerging stuff that is supposed to improve the way people and packages move around on land, in the air or in the water.
https://petebigelow.substack.com/
Director, Center for Environment Community, & Equity and Professor, AU | NonRes Sr Fellow, Brookings | IPCCWG3 AR6 | www.danarfisher.com | TED Talk on being an Apocalyptic Optimist : go.ted.com/danarfisher
π¨ Helping climate science break through to many more people - and unlock action. Brainchild of climate comms lab @utopiabureau.bsky.social and campaigner @nickoldridge.bsky.social https://www.climatesciencebreakthrough.com
Cofounder & funder @climatescibreak.bsky.social. Translating climate science via comedy to drive social change. Now working on the National Emergency Briefing. Oh and occasional DJ.
Energy policy obsessive on clean/decarb, mostly clean heating and gas. Surfer, dog lover, live in Cornwall. Work for Exeter Uni and the Regulatory Assistance Project. Fellow of the Energy Institute. Co-chair of Clean Heat Forum.