Dirk Paessler
@dpaessler.bsky.social
Our mission is to speed up negative emissions
CEO Carbon Drawdown Initiative https://www.carbon-drawdown.de
VP Negative Emissions Platform https://negative-emissions.org/
CEO Carbon Drawdown Initiative https://www.carbon-drawdown.de
VP Negative Emissions Platform https://negative-emissions.org/
It's 𝗢𝗰𝗲𝗮𝗻 𝗣𝗵𝗼𝘁𝗼 𝗙𝗿𝗶𝗱𝗮𝘆 where I invite you to a 15 second ocean meditation with one of my photos or videos.
Let's protect the beauty and abundance of our oceans!
Let's protect the beauty and abundance of our oceans!
August 28, 2026 at 1:00 PM
It's 𝗢𝗰𝗲𝗮𝗻 𝗣𝗵𝗼𝘁𝗼 𝗙𝗿𝗶𝗱𝗮𝘆 where I invite you to a 15 second ocean meditation with one of my photos or videos.
Let's protect the beauty and abundance of our oceans!
Let's protect the beauty and abundance of our oceans!
This last part of our XXL Lysimeter Experiment is about plumbing, and it's not glamorous: keeping measurements trustworthy over years is harder than the chemistry itself.
Our on-site rain gauge under-caught by nearly half against the official station. Anchor to an official reference, always.
Our on-site rain gauge under-caught by nearly half against the official station. Anchor to an official reference, always.
August 27, 2026 at 1:00 PM
This last part of our XXL Lysimeter Experiment is about plumbing, and it's not glamorous: keeping measurements trustworthy over years is harder than the chemistry itself.
Our on-site rain gauge under-caught by nearly half against the official station. Anchor to an official reference, always.
Our on-site rain gauge under-caught by nearly half against the official station. Anchor to an official reference, always.
A soil-CO₂ sensor sounds like the ultimate shortcut. Weathering consumes CO₂, so bury a probe and read carbon removal straight out of the ground. Part 5 of our XXL Lysimeter Experiment shows why that's not how it works, and what these sensors are actually good for instead.
August 26, 2026 at 12:44 PM
A soil-CO₂ sensor sounds like the ultimate shortcut. Weathering consumes CO₂, so bury a probe and read carbon removal straight out of the ground. Part 5 of our XXL Lysimeter Experiment shows why that's not how it works, and what these sensors are actually good for instead.
It's 𝗢𝗰𝗲𝗮𝗻 𝗣𝗵𝗼𝘁𝗼 𝗙𝗿𝗶𝗱𝗮𝘆 where I invite you to a 15 second ocean meditation with one of my photos or videos.
Let's protect the beauty and abundance of our oceans!
Let's protect the beauty and abundance of our oceans!
August 21, 2026 at 12:49 PM
It's 𝗢𝗰𝗲𝗮𝗻 𝗣𝗵𝗼𝘁𝗼 𝗙𝗿𝗶𝗱𝗮𝘆 where I invite you to a 15 second ocean meditation with one of my photos or videos.
Let's protect the beauty and abundance of our oceans!
Let's protect the beauty and abundance of our oceans!
Alkalinity is the number we actually care about, and it's slow and expensive: pump the leachate, ship it to a lab, titrate. Part 4 of our XXL Lysimeter Experiment asks a more practical question: can a sensor buried in the soil, logging continuously, stand in for that lab work?
August 20, 2026 at 1:04 PM
Alkalinity is the number we actually care about, and it's slow and expensive: pump the leachate, ship it to a lab, titrate. Part 4 of our XXL Lysimeter Experiment asks a more practical question: can a sensor buried in the soil, logging continuously, stand in for that lab work?
Part 2 of our XXL Lysimeter Experiment left the leachate data flat. Part 3 turns to the buried sensors, and the picture changes.
August 19, 2026 at 12:58 PM
Part 2 of our XXL Lysimeter Experiment left the leachate data flat. Part 3 turns to the buried sensors, and the picture changes.
It's 𝗢𝗰𝗲𝗮𝗻 𝗣𝗵𝗼𝘁𝗼 𝗙𝗿𝗶𝗱𝗮𝘆 where I invite you to a 15 second ocean meditation with one of my photos or videos.
Let's protect the beauty and abundance of our oceans!
Let's protect the beauty and abundance of our oceans!
August 14, 2026 at 12:31 PM
It's 𝗢𝗰𝗲𝗮𝗻 𝗣𝗵𝗼𝘁𝗼 𝗙𝗿𝗶𝗱𝗮𝘆 where I invite you to a 15 second ocean meditation with one of my photos or videos.
Let's protect the beauty and abundance of our oceans!
Let's protect the beauty and abundance of our oceans!
Does more basalt mean more CO₂ removal? Our XXL Lysimeter Experiment says: not so fast.
The intuition is a straight line. Spread twice as much rock, remove twice as much carbon. Over 1,400 days of our XXL Lysimeter Experiment, that line does not hold.
The intuition is a straight line. Spread twice as much rock, remove twice as much carbon. Over 1,400 days of our XXL Lysimeter Experiment, that line does not hold.
August 13, 2026 at 12:55 PM
Does more basalt mean more CO₂ removal? Our XXL Lysimeter Experiment says: not so fast.
The intuition is a straight line. Spread twice as much rock, remove twice as much carbon. Over 1,400 days of our XXL Lysimeter Experiment, that line does not hold.
The intuition is a straight line. Spread twice as much rock, remove twice as much carbon. Over 1,400 days of our XXL Lysimeter Experiment, that line does not hold.
1,400 days. Four winters. Twenty pots of basalt-amended soil.
That's our XXL Lysimeter Experiment, and the treated pots removed no more CO₂ than the untreated controls.
That's our XXL Lysimeter Experiment, and the treated pots removed no more CO₂ than the untreated controls.
August 12, 2026 at 1:03 PM
1,400 days. Four winters. Twenty pots of basalt-amended soil.
That's our XXL Lysimeter Experiment, and the treated pots removed no more CO₂ than the untreated controls.
That's our XXL Lysimeter Experiment, and the treated pots removed no more CO₂ than the untreated controls.
It's 𝗢𝗰𝗲𝗮𝗻 𝗣𝗵𝗼𝘁𝗼 𝗙𝗿𝗶𝗱𝗮𝘆 where I invite you to a 15 second ocean meditation with one of my photos or videos.
Let's protect the beauty and abundance of our oceans!
Let's protect the beauty and abundance of our oceans!
August 7, 2026 at 1:00 PM
It's 𝗢𝗰𝗲𝗮𝗻 𝗣𝗵𝗼𝘁𝗼 𝗙𝗿𝗶𝗱𝗮𝘆 where I invite you to a 15 second ocean meditation with one of my photos or videos.
Let's protect the beauty and abundance of our oceans!
Let's protect the beauty and abundance of our oceans!
Enhanced rock weathering has a problem that doesn't get talked about enough.
It's not the science. The science works. It's that finding the right fields is slow and expensive, and verifying that the rock did its job can eat up nearly half of total project costs.
It's not the science. The science works. It's that finding the right fields is slow and expensive, and verifying that the rock did its job can eat up nearly half of total project costs.
August 6, 2026 at 12:59 PM
Enhanced rock weathering has a problem that doesn't get talked about enough.
It's not the science. The science works. It's that finding the right fields is slow and expensive, and verifying that the rock did its job can eat up nearly half of total project costs.
It's not the science. The science works. It's that finding the right fields is slow and expensive, and verifying that the rock did its job can eat up nearly half of total project costs.
Want to use Claude as a proper co-editor in a shared Google Doc? I built a solution! Meet Remy, a skill for Claude 🐀.
A free open-source plugin for the Claude desktop app and CLI. Remember the rat in Ratatouille who guides the chef's hands, invisible to the guests?
dirkpaessler.blog/2026/08/03/r...
A free open-source plugin for the Claude desktop app and CLI. Remember the rat in Ratatouille who guides the chef's hands, invisible to the guests?
dirkpaessler.blog/2026/08/03/r...
Remy: Working in shared Google Docs with Claude made easy
Almost everything I write these days is written together with other people, in shared Google Docs — reports, papers, blog drafts. And for months there was one collaborator who couldn’t get in…
dirkpaessler.blog
August 3, 2026 at 6:18 PM
Want to use Claude as a proper co-editor in a shared Google Doc? I built a solution! Meet Remy, a skill for Claude 🐀.
A free open-source plugin for the Claude desktop app and CLI. Remember the rat in Ratatouille who guides the chef's hands, invisible to the guests?
dirkpaessler.blog/2026/08/03/r...
A free open-source plugin for the Claude desktop app and CLI. Remember the rat in Ratatouille who guides the chef's hands, invisible to the guests?
dirkpaessler.blog/2026/08/03/r...
It's 𝗢𝗰𝗲𝗮𝗻 𝗣𝗵𝗼𝘁𝗼 𝗙𝗿𝗶𝗱𝗮𝘆 where I invite you to a 15 second ocean meditation with one of my photos or videos.
Let's protect the beauty and abundance of our oceans!
Let's protect the beauty and abundance of our oceans!
July 31, 2026 at 12:59 PM
It's 𝗢𝗰𝗲𝗮𝗻 𝗣𝗵𝗼𝘁𝗼 𝗙𝗿𝗶𝗱𝗮𝘆 where I invite you to a 15 second ocean meditation with one of my photos or videos.
Let's protect the beauty and abundance of our oceans!
Let's protect the beauty and abundance of our oceans!
Wastewater treatment plants produce CO₂ continuously — inside enclosed, monitored reactors — as a natural byproduct of breaking down organic waste.
CREW Carbon uses that process to remove carbon instead of releasing it.
CREW Carbon uses that process to remove carbon instead of releasing it.
July 30, 2026 at 12:56 PM
Wastewater treatment plants produce CO₂ continuously — inside enclosed, monitored reactors — as a natural byproduct of breaking down organic waste.
CREW Carbon uses that process to remove carbon instead of releasing it.
CREW Carbon uses that process to remove carbon instead of releasing it.
It's 𝗢𝗰𝗲𝗮𝗻 𝗣𝗵𝗼𝘁𝗼 𝗙𝗿𝗶𝗱𝗮𝘆 where I invite you to a 15 second ocean meditation with one of my photos or videos.
Let's protect the beauty and abundance of our oceans!
Let's protect the beauty and abundance of our oceans!
July 24, 2026 at 1:00 PM
It's 𝗢𝗰𝗲𝗮𝗻 𝗣𝗵𝗼𝘁𝗼 𝗙𝗿𝗶𝗱𝗮𝘆 where I invite you to a 15 second ocean meditation with one of my photos or videos.
Let's protect the beauty and abundance of our oceans!
Let's protect the beauty and abundance of our oceans!
What is the most important job of a CEO? I get asked this a lot. Here's my answer, after 20 years running Paessler:
July 23, 2026 at 1:16 PM
What is the most important job of a CEO? I get asked this a lot. Here's my answer, after 20 years running Paessler:
It's 𝗢𝗰𝗲𝗮𝗻 𝗣𝗵𝗼𝘁𝗼 𝗙𝗿𝗶𝗱𝗮𝘆 where I invite you to a 15 second ocean meditation with one of my photos or videos.
Let's protect the beauty and abundance of our oceans!
Let's protect the beauty and abundance of our oceans!
July 17, 2026 at 2:14 PM
It's 𝗢𝗰𝗲𝗮𝗻 𝗣𝗵𝗼𝘁𝗼 𝗙𝗿𝗶𝗱𝗮𝘆 where I invite you to a 15 second ocean meditation with one of my photos or videos.
Let's protect the beauty and abundance of our oceans!
Let's protect the beauty and abundance of our oceans!
It's 𝗢𝗰𝗲𝗮𝗻 𝗣𝗵𝗼𝘁𝗼 𝗙𝗿𝗶𝗱𝗮𝘆 where I invite you to a 15 second ocean meditation with one of my photos or videos.
Let's protect the beauty and abundance of our oceans!
Let's protect the beauty and abundance of our oceans!
July 10, 2026 at 1:01 PM
It's 𝗢𝗰𝗲𝗮𝗻 𝗣𝗵𝗼𝘁𝗼 𝗙𝗿𝗶𝗱𝗮𝘆 where I invite you to a 15 second ocean meditation with one of my photos or videos.
Let's protect the beauty and abundance of our oceans!
Let's protect the beauty and abundance of our oceans!
In a desperate attempt to get my first AI agent to run reliably I tried to make it self-optimizing (after fighting with its unreliability for 6 weeks). I wrote a 10 page document (code name "Magna Carta") describing what the agent should and should not do.
July 8, 2026 at 3:35 PM
In a desperate attempt to get my first AI agent to run reliably I tried to make it self-optimizing (after fighting with its unreliability for 6 weeks). I wrote a 10 page document (code name "Magna Carta") describing what the agent should and should not do.
It's 𝗢𝗰𝗲𝗮𝗻 𝗣𝗵𝗼𝘁𝗼 𝗙𝗿𝗶𝗱𝗮𝘆 where I invite you to a 15 second ocean meditation with one of my photos or videos.
Let's protect the beauty and abundance of our oceans!
Let's protect the beauty and abundance of our oceans!
July 3, 2026 at 12:03 PM
It's 𝗢𝗰𝗲𝗮𝗻 𝗣𝗵𝗼𝘁𝗼 𝗙𝗿𝗶𝗱𝗮𝘆 where I invite you to a 15 second ocean meditation with one of my photos or videos.
Let's protect the beauty and abundance of our oceans!
Let's protect the beauty and abundance of our oceans!
Sixty years ago when we wanted to tell computers what we wanted them to do, we wrote machine code: literal CPU instructions. Then came BASIC. Then C, Java or Pascal (compiled code). Then Python and JavaScript (interpreted script languages).
July 2, 2026 at 1:00 PM
Sixty years ago when we wanted to tell computers what we wanted them to do, we wrote machine code: literal CPU instructions. Then came BASIC. Then C, Java or Pascal (compiled code). Then Python and JavaScript (interpreted script languages).
Weather show at sunset (Fürth, Germany)
June 28, 2026 at 8:35 PM
Weather show at sunset (Fürth, Germany)
It's 𝗢𝗰𝗲𝗮𝗻 𝗣𝗵𝗼𝘁𝗼 𝗙𝗿𝗶𝗱𝗮𝘆 where I invite you to a 15 second ocean meditation with one of my photos or videos.
Let's protect the beauty and abundance of our oceans!
Let's protect the beauty and abundance of our oceans!
June 26, 2026 at 1:00 PM
It's 𝗢𝗰𝗲𝗮𝗻 𝗣𝗵𝗼𝘁𝗼 𝗙𝗿𝗶𝗱𝗮𝘆 where I invite you to a 15 second ocean meditation with one of my photos or videos.
Let's protect the beauty and abundance of our oceans!
Let's protect the beauty and abundance of our oceans!
Last week, DVNE — the German Association for Negative Emissions — chose our greenhouse for their CDR Experience Tour.
I was proud to give the welcome talk to our visitors, and we're publishing it now for everyone who couldn't be there.
I was proud to give the welcome talk to our visitors, and we're publishing it now for everyone who couldn't be there.
June 26, 2026 at 12:02 PM
Last week, DVNE — the German Association for Negative Emissions — chose our greenhouse for their CDR Experience Tour.
I was proud to give the welcome talk to our visitors, and we're publishing it now for everyone who couldn't be there.
I was proud to give the welcome talk to our visitors, and we're publishing it now for everyone who couldn't be there.
The speaker slides of the Carbon Drawdown Symposium (day 1) are now available on the event website:
events.carbon-drawdown.de/p/symposium
See the individual agenda items of the first day.
events.carbon-drawdown.de/p/symposium
See the individual agenda items of the first day.
June 18, 2026 at 8:42 AM
The speaker slides of the Carbon Drawdown Symposium (day 1) are now available on the event website:
events.carbon-drawdown.de/p/symposium
See the individual agenda items of the first day.
events.carbon-drawdown.de/p/symposium
See the individual agenda items of the first day.