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/
Reposted by Dirk Paessler
With the year coming to an end it’s time to look back what happened this year with indoorco2map.com and even more importantly what the goals for next year are: a big app overhaul, support for stationary sensors providing live data, more community events and more collaboration. Details below ↓
Indoor-CO₂ Atlas
indoorco2map.com
December 31, 2025 at 10:15 AM
With the year coming to an end it’s time to look back what happened this year with indoorco2map.com and even more importantly what the goals for next year are: a big app overhaul, support for stationary sensors providing live data, more community events and more collaboration. Details below ↓
My most recent poll was answered by 85 people: 80% of you believe that the current funding slowdown in climate tech will continue for more than 2 years or even more than 3 years. Less than 10% are optimistic for the next 12 months, another 11% hope for 1-2 years.
December 23, 2025 at 2:25 PM
My most recent poll was answered by 85 people: 80% of you believe that the current funding slowdown in climate tech will continue for more than 2 years or even more than 3 years. Less than 10% are optimistic for the next 12 months, another 11% hope for 1-2 years.
This is a positive surprise to me! 95% of voters in my poll last week think that Enhanced Weathering (EW) is "economically viable".
December 22, 2025 at 2:01 PM
This is a positive surprise to me! 95% of voters in my poll last week think that Enhanced Weathering (EW) is "economically viable".
Auch bei den COVID-Hospitalisierungen der @dgina.bsky.social Notaufnahme Ampel ist jetzt der Abwärtstrend nach Erreichen des Dezember Peaks angekommen, so wie in @rv-enigma.bsky.social's Kurven unten zu sehen.
December 22, 2025 at 11:03 AM
Auch bei den COVID-Hospitalisierungen der @dgina.bsky.social Notaufnahme Ampel ist jetzt der Abwärtstrend nach Erreichen des Dezember Peaks angekommen, so wie in @rv-enigma.bsky.social's Kurven unten zu sehen.
Von dem Absinken, das @rv-enigma.bsky.social in den täglichen Infektionszahlen zeigt, ist in den wöchentlichen Covid-Hospitalisierungen der @dgina.bsky.social Notaufnahmeampel noch nichts zu sehen.
December 20, 2025 at 12:39 PM
Von dem Absinken, das @rv-enigma.bsky.social in den täglichen Infektionszahlen zeigt, ist in den wöchentlichen Covid-Hospitalisierungen der @dgina.bsky.social Notaufnahmeampel noch nichts zu sehen.
It's 𝗢𝗰𝗲𝗮𝗻 𝗣𝗵𝗼𝘁𝗼 𝗙𝗿𝗶𝗱𝗮𝘆 where I invite you to a 15 second ocean meditation with a photo or video. This week: Maldives, Indian Ocean.
Let's protect the beauty and abundance of our oceans!
Let's protect the beauty and abundance of our oceans!
December 19, 2025 at 2:02 PM
It's 𝗢𝗰𝗲𝗮𝗻 𝗣𝗵𝗼𝘁𝗼 𝗙𝗿𝗶𝗱𝗮𝘆 where I invite you to a 15 second ocean meditation with a photo or video. This week: Maldives, Indian Ocean.
Let's protect the beauty and abundance of our oceans!
Let's protect the beauty and abundance of our oceans!
Enhanced rock weathering gets even more carbon-efficient when you use the material we already have.
In Part 3 of our “Lifetime Carbon Balance of ERW” series, we look at one of the biggest levers for improving net-negative outcomes: waste rock, quarry fines, and mine tailings.
In Part 3 of our “Lifetime Carbon Balance of ERW” series, we look at one of the biggest levers for improving net-negative outcomes: waste rock, quarry fines, and mine tailings.
December 18, 2025 at 3:25 PM
Enhanced rock weathering gets even more carbon-efficient when you use the material we already have.
In Part 3 of our “Lifetime Carbon Balance of ERW” series, we look at one of the biggest levers for improving net-negative outcomes: waste rock, quarry fines, and mine tailings.
In Part 3 of our “Lifetime Carbon Balance of ERW” series, we look at one of the biggest levers for improving net-negative outcomes: waste rock, quarry fines, and mine tailings.
We all look for any good climate news we can get this year. Here is one: I’m proud to share that InPlanet – one of our portfolio companies at Carbon Drawdown Initiative – is partnering with Microsoft to remove an impressive 28,500 tonnes of CO₂ via Enhanced Rock Weathering (ERW) from 2026-2028.
December 17, 2025 at 2:10 PM
We all look for any good climate news we can get this year. Here is one: I’m proud to share that InPlanet – one of our portfolio companies at Carbon Drawdown Initiative – is partnering with Microsoft to remove an impressive 28,500 tonnes of CO₂ via Enhanced Rock Weathering (ERW) from 2026-2028.
A Map of Hope: 700+ Carbon Removal Companies Around the World. What does the global carbon removal landscape actually look like?
December 15, 2025 at 2:00 PM
A Map of Hope: 700+ Carbon Removal Companies Around the World. What does the global carbon removal landscape actually look like?
Reposted by Dirk Paessler
Covid-Modell-Situation (13.12.25):
Eine BA.3.2-Welle setzt sich auf die XFG-Welle (Grafik). Durch den Rückgang der Kontakte wird sie vermutlich um Weihnachten brechen, bleibt aber bis Mitte Januar hoch.
Das Variantenmodell für BA.3.2 ⇒ bsky.app/profile/mart... ist noch nicht stabil.
Eine BA.3.2-Welle setzt sich auf die XFG-Welle (Grafik). Durch den Rückgang der Kontakte wird sie vermutlich um Weihnachten brechen, bleibt aber bis Mitte Januar hoch.
Das Variantenmodell für BA.3.2 ⇒ bsky.app/profile/mart... ist noch nicht stabil.
December 13, 2025 at 10:06 AM
Covid-Modell-Situation (13.12.25):
Eine BA.3.2-Welle setzt sich auf die XFG-Welle (Grafik). Durch den Rückgang der Kontakte wird sie vermutlich um Weihnachten brechen, bleibt aber bis Mitte Januar hoch.
Das Variantenmodell für BA.3.2 ⇒ bsky.app/profile/mart... ist noch nicht stabil.
Eine BA.3.2-Welle setzt sich auf die XFG-Welle (Grafik). Durch den Rückgang der Kontakte wird sie vermutlich um Weihnachten brechen, bleibt aber bis Mitte Januar hoch.
Das Variantenmodell für BA.3.2 ⇒ bsky.app/profile/mart... ist noch nicht stabil.
COVID-Hospitalisierungen der @dgina.bsky.social Notaufnahmeampel zeigen wie von @rv-enigma.bsky.social gesammelte Daten, dass wir über Weihnachten in einer COVID-Welle sein werden. Die Inzidenz-Abschätzung (!) in der zweiten Grafik zeigt, dass sich das auf dem Niveau von 2022/2023 bewegen könnte.
December 12, 2025 at 3:50 PM
COVID-Hospitalisierungen der @dgina.bsky.social Notaufnahmeampel zeigen wie von @rv-enigma.bsky.social gesammelte Daten, dass wir über Weihnachten in einer COVID-Welle sein werden. Die Inzidenz-Abschätzung (!) in der zweiten Grafik zeigt, dass sich das auf dem Niveau von 2022/2023 bewegen könnte.
It's 𝗢𝗰𝗲𝗮𝗻 𝗣𝗵𝗼𝘁𝗼 𝗙𝗿𝗶𝗱𝗮𝘆 where I invite you to a 15 second ocean meditation with a photo. This week: Westman Islands (Vestmannaeyjar, Iceland).
December 12, 2025 at 2:00 PM
It's 𝗢𝗰𝗲𝗮𝗻 𝗣𝗵𝗼𝘁𝗼 𝗙𝗿𝗶𝗱𝗮𝘆 where I invite you to a 15 second ocean meditation with a photo. This week: Westman Islands (Vestmannaeyjar, Iceland).
What does a Life-Cycle Assessment actually measure in enhanced rock weathering, and why does it matter?
This is one of the most important questions in ERW, because a carbon credit is only as good as the accounting behind it.
This is one of the most important questions in ERW, because a carbon credit is only as good as the accounting behind it.
December 11, 2025 at 2:01 PM
What does a Life-Cycle Assessment actually measure in enhanced rock weathering, and why does it matter?
This is one of the most important questions in ERW, because a carbon credit is only as good as the accounting behind it.
This is one of the most important questions in ERW, because a carbon credit is only as good as the accounting behind it.
We are entering the CDR 3.0 world. And that's a good thing. Let me explain.
I recently heard Chris Sherwood, Secretary General of Negative Emissions Platform, explain the three phases of CDR that we have seen over the last maybe 10 years. It goes something like this:
I recently heard Chris Sherwood, Secretary General of Negative Emissions Platform, explain the three phases of CDR that we have seen over the last maybe 10 years. It goes something like this:
December 8, 2025 at 2:00 PM
We are entering the CDR 3.0 world. And that's a good thing. Let me explain.
I recently heard Chris Sherwood, Secretary General of Negative Emissions Platform, explain the three phases of CDR that we have seen over the last maybe 10 years. It goes something like this:
I recently heard Chris Sherwood, Secretary General of Negative Emissions Platform, explain the three phases of CDR that we have seen over the last maybe 10 years. It goes something like this:
It's 𝗢𝗰𝗲𝗮𝗻 𝗣𝗵𝗼𝘁𝗼 𝗙𝗿𝗶𝗱𝗮𝘆 where I invite you to a 15 second ocean meditation with a photo. This week: Jellyfish, Mediterranean Sea.
December 5, 2025 at 2:01 PM
It's 𝗢𝗰𝗲𝗮𝗻 𝗣𝗵𝗼𝘁𝗼 𝗙𝗿𝗶𝗱𝗮𝘆 where I invite you to a 15 second ocean meditation with a photo. This week: Jellyfish, Mediterranean Sea.
𝘋𝘰𝘦𝘴𝘯’𝘵 𝘨𝘳𝘪𝘯𝘥𝘪𝘯𝘨 𝘢𝘯𝘥 𝘵𝘳𝘢𝘯𝘴𝘱𝘰𝘳𝘵𝘪𝘯𝘨 𝘮𝘪𝘭𝘭𝘪𝘰𝘯𝘴 𝘰𝘧 𝘵𝘰𝘯𝘴 𝘰𝘧 𝘳𝘰𝘤𝘬 𝘥𝘶𝘴𝘵 𝘦𝘮𝘪𝘵 𝘮𝘰𝘳𝘦 𝘊𝘖₂ 𝘵𝘩𝘢𝘯 𝘪𝘵 𝘤𝘢𝘱𝘵𝘶𝘳𝘦𝘴?
This is the most common question we hear about enhanced rock weathering and we love answering it, because the data is remarkably clear.
This is the most common question we hear about enhanced rock weathering and we love answering it, because the data is remarkably clear.
December 4, 2025 at 2:00 PM
𝘋𝘰𝘦𝘴𝘯’𝘵 𝘨𝘳𝘪𝘯𝘥𝘪𝘯𝘨 𝘢𝘯𝘥 𝘵𝘳𝘢𝘯𝘴𝘱𝘰𝘳𝘵𝘪𝘯𝘨 𝘮𝘪𝘭𝘭𝘪𝘰𝘯𝘴 𝘰𝘧 𝘵𝘰𝘯𝘴 𝘰𝘧 𝘳𝘰𝘤𝘬 𝘥𝘶𝘴𝘵 𝘦𝘮𝘪𝘵 𝘮𝘰𝘳𝘦 𝘊𝘖₂ 𝘵𝘩𝘢𝘯 𝘪𝘵 𝘤𝘢𝘱𝘵𝘶𝘳𝘦𝘴?
This is the most common question we hear about enhanced rock weathering and we love answering it, because the data is remarkably clear.
This is the most common question we hear about enhanced rock weathering and we love answering it, because the data is remarkably clear.
Most of my childhood looked like a restless loop. I learned quickly, got bored even faster, and nothing ever gained real traction. I tried chess, electronics kits, stamps, model building, all of it. Every time the same feeling returned: nothing develops fast enough, nothing goes deep enough.
December 3, 2025 at 2:01 PM
Most of my childhood looked like a restless loop. I learned quickly, got bored even faster, and nothing ever gained real traction. I tried chess, electronics kits, stamps, model building, all of it. Every time the same feeling returned: nothing develops fast enough, nothing goes deep enough.
Moving into our biggest office taught me an important lesson:
My company’s growth had pushed me past my personal limits.
From 2012-2016, Paessler scaled from 40 to 200 people.
My company’s growth had pushed me past my personal limits.
From 2012-2016, Paessler scaled from 40 to 200 people.
November 26, 2025 at 2:01 PM
Moving into our biggest office taught me an important lesson:
My company’s growth had pushed me past my personal limits.
From 2012-2016, Paessler scaled from 40 to 200 people.
My company’s growth had pushed me past my personal limits.
From 2012-2016, Paessler scaled from 40 to 200 people.
It’s Not Just the Rock—It’s the Soil (And it holds on tight) -- Our latest greenhouse study with data from our greenhouse experiments is now available on EGUSphere as a pre-print.
November 25, 2025 at 4:03 PM
It’s Not Just the Rock—It’s the Soil (And it holds on tight) -- Our latest greenhouse study with data from our greenhouse experiments is now available on EGUSphere as a pre-print.
To explain how enhanced weathering works, we made a simplified carbon flow chart (see 1st comment). It illustrates a simplified annual carbon cycle for a 1 m² cornfield. It details the movement of carbon between different "pools" and the "fluxes" that transfer carbon.
November 24, 2025 at 2:01 PM
To explain how enhanced weathering works, we made a simplified carbon flow chart (see 1st comment). It illustrates a simplified annual carbon cycle for a 1 m² cornfield. It details the movement of carbon between different "pools" and the "fluxes" that transfer carbon.
Excuse my french, but I am really angry and disappointed: the climate conference #COP30 final common statement does not contain the word “fossil”. At all.
November 22, 2025 at 9:16 PM
Excuse my french, but I am really angry and disappointed: the climate conference #COP30 final common statement does not contain the word “fossil”. At all.
It's 𝗢𝗰𝗲𝗮𝗻 𝗣𝗵𝗼𝘁𝗼 𝗙𝗿𝗶𝗱𝗮𝘆 where I invite you to a 15 second ocean meditation with a photo. This week: Bignose Unicorn Fish love to swim in divers' bubbles.
November 21, 2025 at 2:00 PM
It's 𝗢𝗰𝗲𝗮𝗻 𝗣𝗵𝗼𝘁𝗼 𝗙𝗿𝗶𝗱𝗮𝘆 where I invite you to a 15 second ocean meditation with a photo. This week: Bignose Unicorn Fish love to swim in divers' bubbles.
Weathering showed up in our experimental field in Fürth, Germany. Just not where we expected it.
When we started our field experiments 4½ years ago, we put up a sign to explain what we were doing with all that rock dust. Curious passers-by kept asking, “what the hell is happening here?”
When we started our field experiments 4½ years ago, we put up a sign to explain what we were doing with all that rock dust. Curious passers-by kept asking, “what the hell is happening here?”
November 20, 2025 at 2:01 PM
Weathering showed up in our experimental field in Fürth, Germany. Just not where we expected it.
When we started our field experiments 4½ years ago, we put up a sign to explain what we were doing with all that rock dust. Curious passers-by kept asking, “what the hell is happening here?”
When we started our field experiments 4½ years ago, we put up a sign to explain what we were doing with all that rock dust. Curious passers-by kept asking, “what the hell is happening here?”
@rutgerbregman.com recently identified a type of cultural idealism based on lack of impact.
He said there is a group of young people who believe the highest good for their lives is to not do anything bad, to leave no trace of their existence—no pollution, no carbon footprint, no waste.
He said there is a group of young people who believe the highest good for their lives is to not do anything bad, to leave no trace of their existence—no pollution, no carbon footprint, no waste.
November 19, 2025 at 2:01 PM
@rutgerbregman.com recently identified a type of cultural idealism based on lack of impact.
He said there is a group of young people who believe the highest good for their lives is to not do anything bad, to leave no trace of their existence—no pollution, no carbon footprint, no waste.
He said there is a group of young people who believe the highest good for their lives is to not do anything bad, to leave no trace of their existence—no pollution, no carbon footprint, no waste.
Most founders know it is hard to keep a company from going under. Fewer realize the mirror truth: once your product really works, it is also hard to control how big your company becomes.
November 18, 2025 at 2:00 PM
Most founders know it is hard to keep a company from going under. Fewer realize the mirror truth: once your product really works, it is also hard to control how big your company becomes.