Christian Flachsland
@chflachsland.bsky.social
Professor of Climate Policy, Hertie School Centre for Sustainability
"A growing number of studies have found that the most widely used offset programs continue to greatly overestimate their probable climate impact often by a factor of five to ten or more. "
www.annualreviews.org/content/jour...
www.annualreviews.org/content/jour...
October 7, 2025 at 9:12 PM
"A growing number of studies have found that the most widely used offset programs continue to greatly overestimate their probable climate impact often by a factor of five to ten or more. "
www.annualreviews.org/content/jour...
www.annualreviews.org/content/jour...
Update of perhaps my favorite global climate policy indicator: The production gap report.
In fact, the gap between countries' planned fossil fuel extraction and global climate targets has widened.
Turning the tide on these indicators is essential for climate policy success.
productiongap.org
In fact, the gap between countries' planned fossil fuel extraction and global climate targets has widened.
Turning the tide on these indicators is essential for climate policy success.
productiongap.org
September 22, 2025 at 7:53 PM
Update of perhaps my favorite global climate policy indicator: The production gap report.
In fact, the gap between countries' planned fossil fuel extraction and global climate targets has widened.
Turning the tide on these indicators is essential for climate policy success.
productiongap.org
In fact, the gap between countries' planned fossil fuel extraction and global climate targets has widened.
Turning the tide on these indicators is essential for climate policy success.
productiongap.org
Working paper update 👇
July 19, 2025 at 8:38 AM
Working paper update 👇
June 27, 2025 at 10:16 AM
June 26, 2025 at 5:47 AM
June 26, 2025 at 5:44 AM
One attempt at empirical research related to that question is this paper here - much more needed.
www.sciencedirect.com/science/arti...
www.sciencedirect.com/science/arti...
June 24, 2025 at 2:24 PM
One attempt at empirical research related to that question is this paper here - much more needed.
www.sciencedirect.com/science/arti...
www.sciencedirect.com/science/arti...
Unser @ariadneprojekt.bsky.social Kurzdossier zur Handlungsfähigkeit des Staates in der Klima- und Energiepolitik ist veröffentlicht.
Wir gehen auf die Vorschläge der "Initiative für einen Handlungsfähigen Staat" ein und entwickeln unsere Problemdiagnose & Lösungsoptionen.
Kernbotschaften 👇
Wir gehen auf die Vorschläge der "Initiative für einen Handlungsfähigen Staat" ein und entwickeln unsere Problemdiagnose & Lösungsoptionen.
Kernbotschaften 👇
June 17, 2025 at 7:32 AM
Unser @ariadneprojekt.bsky.social Kurzdossier zur Handlungsfähigkeit des Staates in der Klima- und Energiepolitik ist veröffentlicht.
Wir gehen auf die Vorschläge der "Initiative für einen Handlungsfähigen Staat" ein und entwickeln unsere Problemdiagnose & Lösungsoptionen.
Kernbotschaften 👇
Wir gehen auf die Vorschläge der "Initiative für einen Handlungsfähigen Staat" ein und entwickeln unsere Problemdiagnose & Lösungsoptionen.
Kernbotschaften 👇
June 17, 2025 at 6:21 AM
Nice to see coverage of our Döbbeling-Hildebrandt et al. (2024) meta-analysis on the effectiveness of carbon pricing systems in the report
www.nature.com/articles/s41...
www.nature.com/articles/s41...
June 11, 2025 at 9:00 AM
Nice to see coverage of our Döbbeling-Hildebrandt et al. (2024) meta-analysis on the effectiveness of carbon pricing systems in the report
www.nature.com/articles/s41...
www.nature.com/articles/s41...
The report also features the iconic carbon pricing world map - I vividly remember putting this together myself 15 years ago, when this was still feasible for a PhD student and the World Bank Report series didn't yet exist
June 11, 2025 at 9:00 AM
The report also features the iconic carbon pricing world map - I vividly remember putting this together myself 15 years ago, when this was still feasible for a PhD student and the World Bank Report series didn't yet exist
(5) Total revenues from carbon pricing systems remain stable
June 11, 2025 at 9:00 AM
(5) Total revenues from carbon pricing systems remain stable
(4) The emissions-weighted average price of ETS is 15USD, for carbon taxes it is 2USD. The global emissions-weighted carbon price is thus 5USD/tCO2e - far too low in view of Paris Agreement targets, of course
June 11, 2025 at 9:00 AM
(4) The emissions-weighted average price of ETS is 15USD, for carbon taxes it is 2USD. The global emissions-weighted carbon price is thus 5USD/tCO2e - far too low in view of Paris Agreement targets, of course
(3) Price levels remain heterogeneous across systems
June 11, 2025 at 9:00 AM
(3) Price levels remain heterogeneous across systems
(2) Over half of global emissions from the power
sector and almost half of the industry sector
face a direct carbon price. Coverage in other sectors is low, with agricultural emissions remaining unpriced
sector and almost half of the industry sector
face a direct carbon price. Coverage in other sectors is low, with agricultural emissions remaining unpriced
June 11, 2025 at 9:00 AM
(2) Over half of global emissions from the power
sector and almost half of the industry sector
face a direct carbon price. Coverage in other sectors is low, with agricultural emissions remaining unpriced
sector and almost half of the industry sector
face a direct carbon price. Coverage in other sectors is low, with agricultural emissions remaining unpriced
My favorite annual report is out: State & Trends of Carbon Pricing 2025 by the World Bank.
Some key messages:
(1) Carbon pricing systems now cover 28% of global GHG emissions (Chinese ETS expansion to industry added 3bn tCO2e; termination of the Canadian federal fuel charge reduced coverage)
Some key messages:
(1) Carbon pricing systems now cover 28% of global GHG emissions (Chinese ETS expansion to industry added 3bn tCO2e; termination of the Canadian federal fuel charge reduced coverage)
June 11, 2025 at 9:00 AM
My favorite annual report is out: State & Trends of Carbon Pricing 2025 by the World Bank.
Some key messages:
(1) Carbon pricing systems now cover 28% of global GHG emissions (Chinese ETS expansion to industry added 3bn tCO2e; termination of the Canadian federal fuel charge reduced coverage)
Some key messages:
(1) Carbon pricing systems now cover 28% of global GHG emissions (Chinese ETS expansion to industry added 3bn tCO2e; termination of the Canadian federal fuel charge reduced coverage)
...and so is the trend in EV sales (left) and BEV costs relative to ICE (right).
June 5, 2025 at 7:58 AM
...and so is the trend in EV sales (left) and BEV costs relative to ICE (right).
The upwards investment trend in batteries remains encouraging...
June 5, 2025 at 7:58 AM
The upwards investment trend in batteries remains encouraging...
Investment in coal production reaches a new record-high, driven esp. by China.
June 5, 2025 at 7:58 AM
Investment in coal production reaches a new record-high, driven esp. by China.
China drives continued growth (!) of investment in coal electricity generation capacity.
June 5, 2025 at 7:58 AM
China drives continued growth (!) of investment in coal electricity generation capacity.
The EU is the only world region with significantly reduced fossil energy investment share.
June 5, 2025 at 7:58 AM
The EU is the only world region with significantly reduced fossil energy investment share.
Fossil fuel production capacity investments remain stable at ~1trn USD.
June 5, 2025 at 7:58 AM
Fossil fuel production capacity investments remain stable at ~1trn USD.
IEA World Energy Investment Report:
As always, a lot of interesting data & figures.
While renewable energy investment increases, fossil energy investment doesn't decline.
As always, a lot of interesting data & figures.
While renewable energy investment increases, fossil energy investment doesn't decline.
June 5, 2025 at 7:58 AM
IEA World Energy Investment Report:
As always, a lot of interesting data & figures.
While renewable energy investment increases, fossil energy investment doesn't decline.
As always, a lot of interesting data & figures.
While renewable energy investment increases, fossil energy investment doesn't decline.