Erik Hansen

‘You’re killing her!’: Witnesses recount horrific Mission Bay crash where 2-year-old died Bystanders tried to lift an SUV after its driver pinned a mother and child in Mission Bay, say witnesses.

Unpopular opinion but turning right at a red light should not be legal in San Francisco (or anywhere else). Right on red makes horrors like this all too possible. sfstandard.com/2026/03/03/m...

An orange traffic cone with the sign "stay in your lane"

Our elementary school carpool lane takes epistemic trespass seriously

Easy, Danny DeVito.

Matches my experience, can't go back. ICE feels like a clunky tractor.

SML at SFJAZZ

Delightful SML show at SFJAZZ last night. Noise Pop always comes through.

Previous reports have tips like "consider buying an EV" when, like, I'm on an EV rate! You KNOW we have an EV, half of our energy consumptions is due to EV charging using our EV2-A rate!

Top recommended tips from my PG&E Weekly Home Energy report. "Cook efficiently with a portable induction cooktop."

The weekly @pacificgaselectric.bsky.social Home Energy Reports are so frustratingly unhelpful.

Yes, I've already done the PG&E energy audit and told you that my home is all-electric, with an induction stove!

So why surface tips that are utterly unhelpful?

Final EIA-860 is out, and 2025 really did it: 54 GW of new U.S. electric capacity, 96% clean. Solar again carries the offense, and we built more storage in 2025 than the cumulative total through 2023. More and more and more additions... but also record low retirements.

Found on reddit - the Mighty 33!

White Lexus with Florida plates parked on street and covered with snow.

This is why it's helpful to call it "car storage" instead of "parking."

Oooh, please do SF next!

Super Bowl LX logo.

LOVE the Super Bowl logo on the field with combo of Golden Gate Bridge, SF city skyline, and redwood trees. A+. 👌🌁

bsky.app/profile/erik...

"But what about China?" has been a throwaway comment made many times to justify inaction on climate change or criticise decarbonisation policies.

Well China is now by far the world's largest manufacturer, installer, and user of clean energy technologies.

Luna Coffee subscription for January 2026.

Another incredible month of coffee from Luna. Same producer, two different cultivars, both amazing and roasted to perfection. ☕️

Mission Burrito would like to have a word with you. 🌯

this false spring in the Bay Area on Super Bowl week beginning to piss me off. the very nice weather deprives SF tourists a core local experience: frantically buying a $100 low-quality sweatshirt bc the fog rolled in and they are caught in shorts and a t-shirt

EVs are already making your air cleaner A study in California finds that even small increases in EVs lead to measurable drops in air pollution at the neighborhood level.

Amazing new study: For every additional 200 electric cars in ZIP codes across California, unhealthy nitrogen dioxide emissions decreased by 1.1 percent. grist.org/solutions/ev...

It's pretty simple, you can care about preserving free curbside parking or you can care about housing costs, homelessness and climate change.

The tyranny of Gargamel and Azrael was real.

New Shackleton album is a wonderful, dubby, zonked out gem. Propulsive but maybe one of his more linear and melodic releases.

samshackleton.bandcamp.com/album/euphor...

🧑‍🍳😘

Your regular reminder that when folks say "its cold outside where I live, what happened to global warming?" that the world is big, and weather still exists.

Jeremiah Chiu & Marta Sofia Horner at SFJAZZ

Incredible show at SFJAZZ tonight with Jeremiah Chiu & Marta Sofia Horner playing @intlanthem.bsky.social ‘Different Rooms’ live. A spiritual sound bath experience.

Brigit Hirsch, an E.P.A. spokeswoman, said in an email that the agency was still considering the health effects of fine particulate matter and ozone, but was no longer assigning them a dollar value in cost-benefit analyses. “We’re not putting a dollar value on those impacts right now,” she said. “That does not mean E.P.A. is ignoring or undervaluing them.” Ms. Hirsch did not comment on whether the agency would stop using the value of a statistical life for all regulations beyond clean-air rules. But in general, she said, “saying we aren’t attaching a dollar figure to health effects is like saying we aren’t putting a price tag on clean air or safe drinking water. Dollars and cents don’t define their worth.”

The to understand the rhetorical trick: Saying that the value of a statistical life is too uncertain that you're not going to include it means that you're implicitly assigning it a value of zero.

S.F. wants to make it easier to plant — and remove — trees. Here’s why residents are mad Legislation that would change the rules around planting and removing street trees in San Francisco is teeing up a bitter fight at City Hall.

We had our two street trees in front of our house die (naturally) and we have been waiting YEARS for the city to plant new ones, despite repeated requests.

Unless the city addresses this, our tree canopy will continue to shrink. I don’t see anything shared in this article that will help.

How much energy can be produced on global land currently used for liquid biofuels? Bar comparison showing energy per year from land currently used for liquid biofuels: Biofuels for transport — 1,400 TWh per year; Solar panels on the same land — 32,000 TWh per year. Side annotations: 31,000 TWh shown for context as the amount of electricity the world generated in 2024; 7,000 TWh per year shown as the amount of electricity the world would need to power all of its cars and trucks if they were electric. Note: This assumes the world uses 32 million hectares of land to grow crops for liquid biofuels, based on net land use which subtracts land allocated to co-products such as animal feed, and assumes solar PV uses 1 hectare of land per GWh. Data source: Energy Institute; Cerulogy; Ember; and author calculations. Chart is licensed CC BY to Our World in Data.

The world dedicates a Poland-sized area of land to producing liquid biofuels such as bioethanol & biodiesel. Is there a more efficient way to generate energy?

Putting solar panels on the land used for biofuels, e.g., would produce enough electricity for all cars and trucks worldwide to go electric.

Photos Capture the Breathtaking Scale of China's Wind and Solar Buildout

The scale of China's clean energy buildout is difficult to fathom. Check out these pictures.

WRI statement on the new U.S. dietary guidelines from my colleague Raychel Santo:

“The new U.S. dietary guidelines prioritize protein, part of a wider societal trend. While there are many ways to meet our protein needs, not all protein sources have the same impact on people or the planet. 1/

Every once in a while I see supply skeptics motte-and-bailey themselves into saying, "Okay, maybe filtering works, but it takes years and years to see even marginal improvements." And, well,