Erik Hansen
@erik-hansen.bsky.social
Chief Sustainability Officer @Workday. Live in SF. All opinions my own.
Reposted by Erik Hansen
New vacancy chain paper:
November 28, 2025 at 2:57 PM
New vacancy chain paper:
Reposted by Erik Hansen
i understand that there is reader demand for articles like this, but i wish every single one ended with a reminder that the most impactful thing you can do for the climate and environment (at least as far as your diet goes) is to eat fewer animal products www.nytimes.com/2025/12/03/c...
Is My Morning Coffee Climate Friendly?
www.nytimes.com
December 4, 2025 at 7:43 PM
i understand that there is reader demand for articles like this, but i wish every single one ended with a reminder that the most impactful thing you can do for the climate and environment (at least as far as your diet goes) is to eat fewer animal products www.nytimes.com/2025/12/03/c...
Reposted by Erik Hansen
Update from EIA confirms a decline in natural gas use in California with 2025 data. www.eia.gov/todayinenerg...
November 25, 2025 at 3:21 PM
Update from EIA confirms a decline in natural gas use in California with 2025 data. www.eia.gov/todayinenerg...
Reposted by Erik Hansen
Great discussion!
I'm the author of these diagrams and a lot of the questions that come up around them are addressed in this companion diagram that breaks down the differences starting at the power plant.👇
Much more context is in the original article:
yaleclimateconnections.org/2024/01/elec...
I'm the author of these diagrams and a lot of the questions that come up around them are addressed in this companion diagram that breaks down the differences starting at the power plant.👇
Much more context is in the original article:
yaleclimateconnections.org/2024/01/elec...
November 10, 2025 at 1:47 AM
Great discussion!
I'm the author of these diagrams and a lot of the questions that come up around them are addressed in this companion diagram that breaks down the differences starting at the power plant.👇
Much more context is in the original article:
yaleclimateconnections.org/2024/01/elec...
I'm the author of these diagrams and a lot of the questions that come up around them are addressed in this companion diagram that breaks down the differences starting at the power plant.👇
Much more context is in the original article:
yaleclimateconnections.org/2024/01/elec...
Reposted by Erik Hansen
HAPPY FOUR SEASONS TOTAL LANDSCAPING DAY TO ALL WHO CELEBRATE
November 7, 2025 at 6:44 PM
HAPPY FOUR SEASONS TOTAL LANDSCAPING DAY TO ALL WHO CELEBRATE
Reposted by Erik Hansen
Here's a really great, clear explanation from @michael-thomas.bsky.social of what we know about why US electricity prices are rising. (No, it's not data centers, except in some very specific local areas.)
Why Are Electricity Prices Rising?
Probably not for the reasons that you think
www.distilled.earth
October 24, 2025 at 5:36 PM
Here's a really great, clear explanation from @michael-thomas.bsky.social of what we know about why US electricity prices are rising. (No, it's not data centers, except in some very specific local areas.)
Reposted by Erik Hansen
Trump says San Francisco ‘went wrong,' but crime data shows otherwise.
Homicides are their lowest since 1954, robberies since 1985, and smash-and-grabs are down by more than half since 2022.
via @kellywaldron.bsky.social
missionlocal.org/2025/10/trum...
Homicides are their lowest since 1954, robberies since 1985, and smash-and-grabs are down by more than half since 2022.
via @kellywaldron.bsky.social
missionlocal.org/2025/10/trum...
Trump says San Francisco ‘went wrong.’ Crime data shows otherwise.
Homicides are their lowest since 1954, robberies since 1985, and smash-and-grabs are down by more than half since 2022.
missionlocal.org
October 22, 2025 at 6:27 PM
Trump says San Francisco ‘went wrong,' but crime data shows otherwise.
Homicides are their lowest since 1954, robberies since 1985, and smash-and-grabs are down by more than half since 2022.
via @kellywaldron.bsky.social
missionlocal.org/2025/10/trum...
Homicides are their lowest since 1954, robberies since 1985, and smash-and-grabs are down by more than half since 2022.
via @kellywaldron.bsky.social
missionlocal.org/2025/10/trum...
The annual @solarchase.bsky.social solar thread is here and it’s another banger ☀️🧵
Time for 2025 updates to my annual “opinions about solar” thread. If you like these, you might like the second edition of my book, Solar Power Finance Without The Jargon. A 30% discount code WSQ0437 is valid on publisher website until end of November 2025.
www.worldscientific.com/worldscibook...
www.worldscientific.com/worldscibook...
Solar Power Finance Without the Jargon
www.worldscientific.com
October 21, 2025 at 5:23 AM
The annual @solarchase.bsky.social solar thread is here and it’s another banger ☀️🧵
Reposted by Erik Hansen
Time for the world to install a gigawatt of solar power capacity
2004: A year
2010: ~ a month
2015: ~ a week
Now: < A day
ourworldindata.org/data-insight... 🧪
2004: A year
2010: ~ a month
2015: ~ a week
Now: < A day
ourworldindata.org/data-insight... 🧪
September 21, 2025 at 9:44 PM
Time for the world to install a gigawatt of solar power capacity
2004: A year
2010: ~ a month
2015: ~ a week
Now: < A day
ourworldindata.org/data-insight... 🧪
2004: A year
2010: ~ a month
2015: ~ a week
Now: < A day
ourworldindata.org/data-insight... 🧪
Last month's Luna coffee sub was fun! ☕📦
Same producer, same processing methods, but two different varietals so we can explore the difference that varietals make in flavor and cup profile (as opposed to producers or processing).
Same producer, same processing methods, but two different varietals so we can explore the difference that varietals make in flavor and cup profile (as opposed to producers or processing).
September 15, 2025 at 8:55 PM
Last month's Luna coffee sub was fun! ☕📦
Same producer, same processing methods, but two different varietals so we can explore the difference that varietals make in flavor and cup profile (as opposed to producers or processing).
Same producer, same processing methods, but two different varietals so we can explore the difference that varietals make in flavor and cup profile (as opposed to producers or processing).
We have a monthly subscription to Luna Coffee, wonderful roasters up in Vancouver. They informed us that "the de minimis exemption for parcels entering the United States ended August 29th" and now are passing along the $19 USD tariff to customers (exactly what economists predicted would happen).
Coffee prices rose 20.9 percent compared with the same time last year, the largest jump since the 1990s, according to the Consumer Price Index, thanks in part to Trump's tariffs on Brazil, Colombia and Vietnam.
www.nytimes.com/2025/09/11/b...
www.nytimes.com/2025/09/11/b...
Yes, Your Morning Coffee Has Gotten More Expensive
www.nytimes.com
September 11, 2025 at 5:13 PM
We have a monthly subscription to Luna Coffee, wonderful roasters up in Vancouver. They informed us that "the de minimis exemption for parcels entering the United States ended August 29th" and now are passing along the $19 USD tariff to customers (exactly what economists predicted would happen).
Reposted by Erik Hansen
There’s a persistent myth that new solar farms don’t really help tackle climate change because panels are “made with coal” and “never pay back” their carbon debt.
This is simply false.
- UN: solar ~8x cleaner than gas, ~19x than coal per kWh
- panels repay CO2 in 4 months; save 57x over life
This is simply false.
- UN: solar ~8x cleaner than gas, ~19x than coal per kWh
- panels repay CO2 in 4 months; save 57x over life
August 30, 2025 at 8:46 AM
There’s a persistent myth that new solar farms don’t really help tackle climate change because panels are “made with coal” and “never pay back” their carbon debt.
This is simply false.
- UN: solar ~8x cleaner than gas, ~19x than coal per kWh
- panels repay CO2 in 4 months; save 57x over life
This is simply false.
- UN: solar ~8x cleaner than gas, ~19x than coal per kWh
- panels repay CO2 in 4 months; save 57x over life
Reposted by Erik Hansen
On one hand, reducing car use reduces urban pollution.
But on the other, everyone likes it and cities become more livable
But on the other, everyone likes it and cities become more livable
August 30, 2025 at 12:43 AM
On one hand, reducing car use reduces urban pollution.
But on the other, everyone likes it and cities become more livable
But on the other, everyone likes it and cities become more livable
Reposted by Erik Hansen
“Over the past 20 years, Paris has undergone a major physical transformation, trading automotive arteries for bike lanes, adding green spaces and eliminating 50,000 parking spaces.
Part of the payoff has been invisible — in the air itself.”
Leadership, strategy, real action, common sense. #Paris
Part of the payoff has been invisible — in the air itself.”
Leadership, strategy, real action, common sense. #Paris
Paris said au revoir to cars. Air pollution maps reveal a dramatic change.
Air pollution fell substantially as the city restricted car traffic and made way for parks and bike lanes.
www.washingtonpost.com
August 29, 2025 at 4:57 PM
“Over the past 20 years, Paris has undergone a major physical transformation, trading automotive arteries for bike lanes, adding green spaces and eliminating 50,000 parking spaces.
Part of the payoff has been invisible — in the air itself.”
Leadership, strategy, real action, common sense. #Paris
Part of the payoff has been invisible — in the air itself.”
Leadership, strategy, real action, common sense. #Paris
Keep revisiting this absolute gem from Jeremiah Chiu & Marta Sofia Honer. It's in the same conversation as ambient jazz masterpieces from Nala Sinephro. Repeating motifs, absolutely stunning melodies, and guest appearances from Jeff Parker & Josh Johnson. International Anthem does it again.
Different Rooms, by Jeremiah Chiu & Marta Sofia Honer
10 track album
intlanthem.bandcamp.com
August 21, 2025 at 5:21 PM
Keep revisiting this absolute gem from Jeremiah Chiu & Marta Sofia Honer. It's in the same conversation as ambient jazz masterpieces from Nala Sinephro. Repeating motifs, absolutely stunning melodies, and guest appearances from Jeff Parker & Josh Johnson. International Anthem does it again.
Reposted by Erik Hansen
Defenders of car-centric road planning claim that highway widenings reduce emissions (b/c they lessen congestion) while slow urban streets increase emissions (b/c they worsen congestion).
Neither of those assertions is true.
Neither of those assertions is true.
Opponents of lower speed limits in cities often argue that they would actually increase emissions.
But it's actually a lot more complicated than that. This study looks into it properly and finds that they can reduce emissions by 10% doi.org/10.1016/j.tr...
But it's actually a lot more complicated than that. This study looks into it properly and finds that they can reduce emissions by 10% doi.org/10.1016/j.tr...
August 21, 2025 at 3:33 PM
Defenders of car-centric road planning claim that highway widenings reduce emissions (b/c they lessen congestion) while slow urban streets increase emissions (b/c they worsen congestion).
Neither of those assertions is true.
Neither of those assertions is true.
Had the privilege of speaking with friend and sustainability comms expert Mike Hower for his latest pod. We cover a lot of ground, including how CSOs help drive sustainability storytelling & what our approach looks like at @workday.com (and why). Great conversation! 🎙️
How Chief Sustainability Officers advance sustainability storytelling
Podcast Episode · The Sustainability Communicator with Mike Hower · 08/08/2025 · 32m
podcasts.apple.com
August 8, 2025 at 5:51 PM
Had the privilege of speaking with friend and sustainability comms expert Mike Hower for his latest pod. We cover a lot of ground, including how CSOs help drive sustainability storytelling & what our approach looks like at @workday.com (and why). Great conversation! 🎙️
100%. But, alas...
This is why Advance Market Commitment's like Frontier exist. And that AMC should be government led, not private sector as part of voluntary carbon market. And orders of magnitude larger! *sigh*
This is why Advance Market Commitment's like Frontier exist. And that AMC should be government led, not private sector as part of voluntary carbon market. And orders of magnitude larger! *sigh*
Carbon dioxide removal research should be government funded and government led, like the Manhattan Project.
Carbon removal firm Noya shuts shop www.linkedin.com/posts/joshis...
August 8, 2025 at 5:45 PM
100%. But, alas...
This is why Advance Market Commitment's like Frontier exist. And that AMC should be government led, not private sector as part of voluntary carbon market. And orders of magnitude larger! *sigh*
This is why Advance Market Commitment's like Frontier exist. And that AMC should be government led, not private sector as part of voluntary carbon market. And orders of magnitude larger! *sigh*
Having watched every Despicable Me movie countless times w/ the 7 yr old, when I listen to the new Clipse album all I can think about every time Pharrell starts singing is:
a minion is holding a banana in front of a keyboard
Alt: Minions
media.tenor.com
August 1, 2025 at 9:03 PM
Having watched every Despicable Me movie countless times w/ the 7 yr old, when I listen to the new Clipse album all I can think about every time Pharrell starts singing is:
Proud father moment: my 7 yr old watched Star Wars for the first time. ❤️ 🌌
Watched Episode IV first, the way God intended. 💫
Watched Episode IV first, the way God intended. 💫
July 30, 2025 at 9:58 PM
Proud father moment: my 7 yr old watched Star Wars for the first time. ❤️ 🌌
Watched Episode IV first, the way God intended. 💫
Watched Episode IV first, the way God intended. 💫
Reposted by Erik Hansen
Motherfucking wind farms…
July 30, 2025 at 5:02 PM
Motherfucking wind farms…
Reposted by Erik Hansen
“California is so far using forty per cent less natural gas to generate electricity than it did in 2023, which is the single most hopeful statistic I’ve seen in four decades of writing about the climate crisis.”
www.newyorker.com/news/annals-...
www.newyorker.com/news/annals-...
4.6 Billion Years On, the Sun Is Having a Moment
In the past two years, without much notice, solar power has begun to truly transform the world’s energy system.
www.newyorker.com
July 12, 2025 at 10:38 AM
“California is so far using forty per cent less natural gas to generate electricity than it did in 2023, which is the single most hopeful statistic I’ve seen in four decades of writing about the climate crisis.”
www.newyorker.com/news/annals-...
www.newyorker.com/news/annals-...
Vacationing in Croatia right now, thinking the same thing.
My 7 yr old asked me today: “did people use to smoke inside their house? Why??”
My 7 yr old asked me today: “did people use to smoke inside their house? Why??”
I hope that future generations watch period pieces about the aughts and react like I do to Mad Men and people smoking cigarettes everywhere. "You just burned fuel openly on the street? In your house? Where children play?"
June 26, 2025 at 8:56 AM
Vacationing in Croatia right now, thinking the same thing.
My 7 yr old asked me today: “did people use to smoke inside their house? Why??”
My 7 yr old asked me today: “did people use to smoke inside their house? Why??”
Two certainties when summer vacationing in Europe:
1) the ever-present smell of cigarettes
2) men in jorts
1) the ever-present smell of cigarettes
2) men in jorts
June 25, 2025 at 7:08 AM
Two certainties when summer vacationing in Europe:
1) the ever-present smell of cigarettes
2) men in jorts
1) the ever-present smell of cigarettes
2) men in jorts