Caspar Donnison
@caspardonnison.bsky.social
Economist at LLNL, researching across several disciplines; enthusiast of national parks, triathlons, and long-distance trains; nerd of SF Bay Area marine traffic and political philosophy 🌎🌿
Reposted by Caspar Donnison
This was just posted by @tbretc.bsky.social on another platform. The Chicago Sun-Times obviously gets ChatGPT to write a ‘summer reads’ feature almost entirely made up of real authors but completely fake books. What are we coming to?
May 20, 2025 at 11:04 AM
This was just posted by @tbretc.bsky.social on another platform. The Chicago Sun-Times obviously gets ChatGPT to write a ‘summer reads’ feature almost entirely made up of real authors but completely fake books. What are we coming to?
Reposted by Caspar Donnison
Here's a figure from IPCC AR6 Summary for Policymakers showing the linear relationship between fucking around and finding out.
Every tonne of CO₂ we add to the atmosphere makes things worse for us and all other living things.
Every tonne of CO₂ we add to the atmosphere makes things worse for us and all other living things.
May 15, 2025 at 12:54 PM
Here's a figure from IPCC AR6 Summary for Policymakers showing the linear relationship between fucking around and finding out.
Every tonne of CO₂ we add to the atmosphere makes things worse for us and all other living things.
Every tonne of CO₂ we add to the atmosphere makes things worse for us and all other living things.
Ship of the Day, in the SF Bay. This is the Heavy Load Carrier ‘UHL Fresh’ (built 2024: very fresh!), coming from Brazil to the US West Coast: headed to the Port of Stockton. I couldn’t find out what it’s carrying today, possibly wind turbine parts as it has shipped these before. #shipoftheday
May 10, 2025 at 4:22 PM
Ship of the Day, in the SF Bay. This is the Heavy Load Carrier ‘UHL Fresh’ (built 2024: very fresh!), coming from Brazil to the US West Coast: headed to the Port of Stockton. I couldn’t find out what it’s carrying today, possibly wind turbine parts as it has shipped these before. #shipoftheday
Reposted by Caspar Donnison
Introducing the "tree ring plot": a new way to visualize global surface temperatures. Each ring is a year, and each colored cell represents a day in global average temperatures (compared to a 1850-1900 preindustrial baseline).
April 25, 2025 at 9:33 PM
Introducing the "tree ring plot": a new way to visualize global surface temperatures. Each ring is a year, and each colored cell represents a day in global average temperatures (compared to a 1850-1900 preindustrial baseline).
Stirring talk at SF Climate Week from @globalecoguy.bsky.social & @projectdrawdown.bsky.social on their new ‘Drawdown Explorer’: an online data-driven tool that will empower people to explore climate solutions in their own communities. Launching in June!
April 21, 2025 at 11:37 PM
Stirring talk at SF Climate Week from @globalecoguy.bsky.social & @projectdrawdown.bsky.social on their new ‘Drawdown Explorer’: an online data-driven tool that will empower people to explore climate solutions in their own communities. Launching in June!
SF Climate Week! And it started for me aboard the Klamath vessel, with a panel discussion on sustainable travel in the Bay Area: electric ferries are coming in 2026 😊
April 21, 2025 at 5:03 PM
SF Climate Week! And it started for me aboard the Klamath vessel, with a panel discussion on sustainable travel in the Bay Area: electric ferries are coming in 2026 😊
The early morning Amtrak from Oakland to Sacramento: great views, relaxing, WiFi to do morning emails = better than driving.
March 11, 2025 at 4:58 PM
The early morning Amtrak from Oakland to Sacramento: great views, relaxing, WiFi to do morning emails = better than driving.
This is a Ro-Ro ship, meaning ‘roll-on/roll-off’ (a vehicle carrier). Her name is ‘Hyperion Ray’ and she has a capacity of approx 10k cars! #shipoftheday in the Bay.
March 8, 2025 at 5:08 PM
This is a Ro-Ro ship, meaning ‘roll-on/roll-off’ (a vehicle carrier). Her name is ‘Hyperion Ray’ and she has a capacity of approx 10k cars! #shipoftheday in the Bay.
Reposted by Caspar Donnison
The abuse of GWP* was revealed in my paper with Caspar Donnison ( doi.org/10.1088/1748... ). Explaining metrics to the House of Lords was an interesting experience here committees.parliament.uk/writtenevidence/129705/pdf/ . Their report reflected our contribution well.
February 11, 2025 at 7:34 PM
The abuse of GWP* was revealed in my paper with Caspar Donnison ( doi.org/10.1088/1748... ). Explaining metrics to the House of Lords was an interesting experience here committees.parliament.uk/writtenevidence/129705/pdf/ . Their report reflected our contribution well.
Reposted by Caspar Donnison
If, like me, you sometimes get bamboozled with the various metrics used in climate science, this letter is a masterclass in communicating the difference, and why it matters.
Excellent letter by Dr. Donal Murphy-Bokern @murphy-bokern.bsky.social in the IFJ this week, rebutting deeply misleading statements previously made on methane by Teagasc's Dr. Laurence Shalloo.
➡️ Farmers are being misled, accounting changes nothing. Cutting livestock methane deeply NOW is required.
➡️ Farmers are being misled, accounting changes nothing. Cutting livestock methane deeply NOW is required.
February 10, 2025 at 3:43 PM
If, like me, you sometimes get bamboozled with the various metrics used in climate science, this letter is a masterclass in communicating the difference, and why it matters.
The debate continues on the climate impact of livestock methane, so confused by the GWP* tool. As Donal says in his letter, every tonne of methane causes warming equally; farmers are being misled by a false narrative that some count less than others.
Excellent letter by Dr. Donal Murphy-Bokern @murphy-bokern.bsky.social in the IFJ this week, rebutting deeply misleading statements previously made on methane by Teagasc's Dr. Laurence Shalloo.
➡️ Farmers are being misled, accounting changes nothing. Cutting livestock methane deeply NOW is required.
➡️ Farmers are being misled, accounting changes nothing. Cutting livestock methane deeply NOW is required.
February 10, 2025 at 3:22 PM
The debate continues on the climate impact of livestock methane, so confused by the GWP* tool. As Donal says in his letter, every tonne of methane causes warming equally; farmers are being misled by a false narrative that some count less than others.
Happy Tuesday! From the SF Bay Area, where we are being pummeled by an atmospheric-river fueled storm. After a very dry January, we’re expected to get around 3 inches of rain in the next few hours.
February 4, 2025 at 3:52 PM
Happy Tuesday! From the SF Bay Area, where we are being pummeled by an atmospheric-river fueled storm. After a very dry January, we’re expected to get around 3 inches of rain in the next few hours.
This was the traffic at 6:15am on the San Francisco-Oakland Bay Bridge today. The BART train runs this route every few minutes. Culture change - to public transit - is hard, yes, but this is a massive open goal: people don’t want to be stuck in traffic at 6am!
January 28, 2025 at 3:55 PM
This was the traffic at 6:15am on the San Francisco-Oakland Bay Bridge today. The BART train runs this route every few minutes. Culture change - to public transit - is hard, yes, but this is a massive open goal: people don’t want to be stuck in traffic at 6am!
‘The San Francisco traffic is getting worse’ from the SF Chronicle. It’s the 2nd worst US metro area for traffic and yet the Chronicle still reports motorist aversion to using public transport (BART). Downtown BART exits are only a third of their 2019 levels!
www.sfchronicle.com/sf/article/t...
www.sfchronicle.com/sf/article/t...
January 13, 2025 at 5:10 PM
‘The San Francisco traffic is getting worse’ from the SF Chronicle. It’s the 2nd worst US metro area for traffic and yet the Chronicle still reports motorist aversion to using public transport (BART). Downtown BART exits are only a third of their 2019 levels!
www.sfchronicle.com/sf/article/t...
www.sfchronicle.com/sf/article/t...
“Factory closures highlight the turbulent shift to a green economy, exposing political challenges and the urgent need for an equitable move to net-zero.” Without one, climate goals will be derailed.
The Guardian view on a carbon-free economy: no just transition in sight – yet
The Guardian view on a carbon-free economy: no just transition in sight – yet
Factory closures highlight the turbulent shift to a green economy, exposing political challenges and the urgent need for a equitable move to net zero
One of the biggest political battles of the future began to take shape in 2024, yet it did not centre on…
www.theguardian.com
January 6, 2025 at 7:59 PM
“Factory closures highlight the turbulent shift to a green economy, exposing political challenges and the urgent need for an equitable move to net-zero.” Without one, climate goals will be derailed.
Reposted by Caspar Donnison
Welcome to Food/ClimateSky!
- sharing silly thoughts is called “manureposting”
- we don’t say “lol” or “lmao” we say “N₂O” or “N₂OOOO”
- like methane, our posts are forgotten relatively quickly but are 80 times more potent than others’ posts over a 20-year time period
- sharing silly thoughts is called “manureposting”
- we don’t say “lol” or “lmao” we say “N₂O” or “N₂OOOO”
- like methane, our posts are forgotten relatively quickly but are 80 times more potent than others’ posts over a 20-year time period
November 12, 2024 at 9:09 PM
Welcome to Food/ClimateSky!
- sharing silly thoughts is called “manureposting”
- we don’t say “lol” or “lmao” we say “N₂O” or “N₂OOOO”
- like methane, our posts are forgotten relatively quickly but are 80 times more potent than others’ posts over a 20-year time period
- sharing silly thoughts is called “manureposting”
- we don’t say “lol” or “lmao” we say “N₂O” or “N₂OOOO”
- like methane, our posts are forgotten relatively quickly but are 80 times more potent than others’ posts over a 20-year time period
The train is a great alternative to driving between the Bay Area and Sacramento. I’ve done it so many times and I still stare in wonder at the views. Less stress, less pollution, good WiFi, conversations with nice people. Today’s train is the busiest I’ve seen post-pandemic!
November 8, 2024 at 9:33 PM
The train is a great alternative to driving between the Bay Area and Sacramento. I’ve done it so many times and I still stare in wonder at the views. Less stress, less pollution, good WiFi, conversations with nice people. Today’s train is the busiest I’ve seen post-pandemic!
Reposted by Caspar Donnison
Fellow dudes.
We eat a lot of beef.
Eating less beef and more of nearly anything else would greatly reduce the climate impacts of our food choices.
And we can still be manly men.
We eat a lot of beef.
Eating less beef and more of nearly anything else would greatly reduce the climate impacts of our food choices.
And we can still be manly men.
Eating less beef is a climate solution. Here's why that's hard for some American men
Climate researchers have long grappled with how to get Americans to eat less beef, a food with a huge global warming impact. Now some are thinking about it through the lens of gender.
www.npr.org
September 19, 2024 at 11:02 PM
Fellow dudes.
We eat a lot of beef.
Eating less beef and more of nearly anything else would greatly reduce the climate impacts of our food choices.
And we can still be manly men.
We eat a lot of beef.
Eating less beef and more of nearly anything else would greatly reduce the climate impacts of our food choices.
And we can still be manly men.
This is a fascinating topic that I did not know about. Rain absorbs CO2 as it falls and deposits this in the oceans. It impacts ocean-air flux by 1) increasing ocean turbulence and 2) altering the air-sea CO2 concentration gradient. Rain increases the ocean C sink by 5-7%!
The effect of rain on air-water gas exchange and CO₂ fluxes is a topic I started researching 30 years ago. I’m really pleased to see our latest paper — showing that rain enhances ocean CO₂ uptake — finally in print in @natureportfolio.bsky.social. 🌊
Global ocean carbon uptake enhanced by rainfall - Nature Geoscience
About 6% of the total uptake of carbon dioxide by the ocean is due to rainfall, according to an analysis of satellite observations and ERA5 reanalysis data from 2008 to 2018.
www.nature.com
August 30, 2024 at 6:55 PM
This is a fascinating topic that I did not know about. Rain absorbs CO2 as it falls and deposits this in the oceans. It impacts ocean-air flux by 1) increasing ocean turbulence and 2) altering the air-sea CO2 concentration gradient. Rain increases the ocean C sink by 5-7%!
Reposted by Caspar Donnison
I’d like my first post on @bsky.app to pay homage to Prof Michael Sandel’s book 'What Money Can’t Buy: The Moral Limits of Markets'. @caspardonnison.bsky.social recommended his work to me, and my lab group kindly gifted me this book. 12yrs after its initial publishing, it’s more relevant than ever!
August 27, 2024 at 9:55 PM
I’d like my first post on @bsky.app to pay homage to Prof Michael Sandel’s book 'What Money Can’t Buy: The Moral Limits of Markets'. @caspardonnison.bsky.social recommended his work to me, and my lab group kindly gifted me this book. 12yrs after its initial publishing, it’s more relevant than ever!
I experienced the bizarre August storm in the Sierra Nevada yesterday, at the Lake Tahoe triathlon: it was barely above freezing when we raced at sunrise, and there was a snow dusting on the surrounding peaks! Tough race conditions, but beautiful.
August 27, 2024 at 4:28 AM
I experienced the bizarre August storm in the Sierra Nevada yesterday, at the Lake Tahoe triathlon: it was barely above freezing when we raced at sunrise, and there was a snow dusting on the surrounding peaks! Tough race conditions, but beautiful.
Reposted by Caspar Donnison
A lot of what I see reported as climate solutions will do absolutely nothing for climate. We know what works right now (top 5: wind, solar, energy efficiency, stop deforestation, cut CH₄ emissions).
August 23, 2024 at 4:48 AM
A lot of what I see reported as climate solutions will do absolutely nothing for climate. We know what works right now (top 5: wind, solar, energy efficiency, stop deforestation, cut CH₄ emissions).