William F. Lamb
@wflamb.bsky.social
Climate policy researcher at the Potsdam Institute for Climate Impact Research. I work on emissions trends, policy evaluation, carbon dioxide removal and climate obstruction. Scot in Deutschland. https://lambwf.github.io/
Some impressively complete data from Nepal in the latest version
June 16, 2025 at 10:13 AM
Some impressively complete data from Nepal in the latest version
Just did a small update of Tidy GHG Inventories: lambwf.github.io/Tidy-GHG-Inv...
81 countries have now submitted inventory data with their Biennial Transparency Reports. Quite a few still haven't (its 6 months past the deadline btw).
81 countries have now submitted inventory data with their Biennial Transparency Reports. Quite a few still haven't (its 6 months past the deadline btw).
June 16, 2025 at 10:13 AM
Just did a small update of Tidy GHG Inventories: lambwf.github.io/Tidy-GHG-Inv...
81 countries have now submitted inventory data with their Biennial Transparency Reports. Quite a few still haven't (its 6 months past the deadline btw).
81 countries have now submitted inventory data with their Biennial Transparency Reports. Quite a few still haven't (its 6 months past the deadline btw).
The land use change (LULUCF) sector is pretty confusing, since it can be a source of emissions (deforestation, disturbances) as well as a source of removals (regrowth, management).
Including LULUCF can speed up, slow down, or change the overall dynamic of economy-wide emissions.
Including LULUCF can speed up, slow down, or change the overall dynamic of economy-wide emissions.
May 20, 2025 at 11:26 AM
The land use change (LULUCF) sector is pretty confusing, since it can be a source of emissions (deforestation, disturbances) as well as a source of removals (regrowth, management).
Including LULUCF can speed up, slow down, or change the overall dynamic of economy-wide emissions.
Including LULUCF can speed up, slow down, or change the overall dynamic of economy-wide emissions.
Greenhouse gas emissions are still mostly from fossil fuels by the way!!
lambwf.github.io/UNEP-Gap-Rep...
lambwf.github.io/UNEP-Gap-Rep...
April 24, 2025 at 1:26 PM
Greenhouse gas emissions are still mostly from fossil fuels by the way!!
lambwf.github.io/UNEP-Gap-Rep...
lambwf.github.io/UNEP-Gap-Rep...
April 16, 2025 at 9:34 AM
Interesting that people are starting to incorporate these counterfactuals in their emissions reporting. Here's a similar take from the @iea.org
www.iea.org/reports/glob...
www.iea.org/reports/glob...
April 16, 2025 at 9:34 AM
Interesting that people are starting to incorporate these counterfactuals in their emissions reporting. Here's a similar take from the @iea.org
www.iea.org/reports/glob...
www.iea.org/reports/glob...
Lots more figures here: lambwf.github.io/Tidy-GHG-Inv...
April 9, 2025 at 12:44 PM
Lots more figures here: lambwf.github.io/Tidy-GHG-Inv...
I've updated the Tidy GHG Inventories dataset, which is now complete for Annex I countries: doi.org/10.5281/zeno...
This also shows the progress to date in countries submitting Biennial Transparency Reports under the Paris Agreement ⬇️
This also shows the progress to date in countries submitting Biennial Transparency Reports under the Paris Agreement ⬇️
April 9, 2025 at 12:44 PM
I've updated the Tidy GHG Inventories dataset, which is now complete for Annex I countries: doi.org/10.5281/zeno...
This also shows the progress to date in countries submitting Biennial Transparency Reports under the Paris Agreement ⬇️
This also shows the progress to date in countries submitting Biennial Transparency Reports under the Paris Agreement ⬇️
This looks like a very interesting piece on interest groups at the COPs
www.nature.com/articles/s41...
www.nature.com/articles/s41...
March 14, 2025 at 9:34 AM
This looks like a very interesting piece on interest groups at the COPs
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Here with consumption-based CO2
March 12, 2025 at 1:26 PM
Here with consumption-based CO2
I asked CLARA - @oxfordsmithschool.bsky.social's new LLM trained on historical climate obstruction documents - about fossil fuel companies' internal discussions and strategies on carbon dioxide removal 😬
clara-research.com
clara-research.com
March 7, 2025 at 8:47 AM
I asked CLARA - @oxfordsmithschool.bsky.social's new LLM trained on historical climate obstruction documents - about fossil fuel companies' internal discussions and strategies on carbon dioxide removal 😬
clara-research.com
clara-research.com
Sweden is one of a handful of countries that has been reporting net negative GHG emissions for a number of years.
lambwf.github.io/Tidy-GHG-Inv...
If you are wondering "how is that possible?" its because the definition of land use change removals in inventories is very inclusive...
lambwf.github.io/Tidy-GHG-Inv...
If you are wondering "how is that possible?" its because the definition of land use change removals in inventories is very inclusive...
February 17, 2025 at 12:21 PM
Sweden is one of a handful of countries that has been reporting net negative GHG emissions for a number of years.
lambwf.github.io/Tidy-GHG-Inv...
If you are wondering "how is that possible?" its because the definition of land use change removals in inventories is very inclusive...
lambwf.github.io/Tidy-GHG-Inv...
If you are wondering "how is that possible?" its because the definition of land use change removals in inventories is very inclusive...
A question I ask myself daily
February 14, 2025 at 12:34 PM
A question I ask myself daily
Here is a minimal explanation from the gap report. For more info see essd.copernicus.org/articles/15/... or www.nature.com/articles/s41... or @giacgrassi.bsky.social !
February 14, 2025 at 11:08 AM
Here is a minimal explanation from the gap report. For more info see essd.copernicus.org/articles/15/... or www.nature.com/articles/s41... or @giacgrassi.bsky.social !
Here is the issue that has caused so many headaches among climate mitigation researchers - inventory estimates of net land use change emissions differ substantially from global bookkeeping models.
lambwf.github.io/UNEP-Gap-Rep...
lambwf.github.io/UNEP-Gap-Rep...
February 14, 2025 at 11:08 AM
Here is the issue that has caused so many headaches among climate mitigation researchers - inventory estimates of net land use change emissions differ substantially from global bookkeeping models.
lambwf.github.io/UNEP-Gap-Rep...
lambwf.github.io/UNEP-Gap-Rep...
I revamped my page with ghg emissions plots and data from the UNEP Emissions Gap Report. 👇
lambwf.github.io/UNEP-Gap-Rep...
I'll be adding to this a bit in the coming months.
lambwf.github.io/UNEP-Gap-Rep...
I'll be adding to this a bit in the coming months.
February 13, 2025 at 4:39 PM
I revamped my page with ghg emissions plots and data from the UNEP Emissions Gap Report. 👇
lambwf.github.io/UNEP-Gap-Rep...
I'll be adding to this a bit in the coming months.
lambwf.github.io/UNEP-Gap-Rep...
I'll be adding to this a bit in the coming months.
Even the Vatican!
(Those industry process emissions are HFCs from fridges and aircon btw).
(Those industry process emissions are HFCs from fridges and aircon btw).
January 17, 2025 at 10:19 AM
Even the Vatican!
(Those industry process emissions are HFCs from fridges and aircon btw).
(Those industry process emissions are HFCs from fridges and aircon btw).
To compare, a few other countries doing a top job with their submissions, despite lower national incomes and/or arguably less well staffed statistical offices...
January 17, 2025 at 10:19 AM
To compare, a few other countries doing a top job with their submissions, despite lower national incomes and/or arguably less well staffed statistical offices...
China's latest national GHG inventory submission (common reporting table) to the UNFCCC
... 🤔
... 🤔
January 17, 2025 at 10:19 AM
China's latest national GHG inventory submission (common reporting table) to the UNFCCC
... 🤔
... 🤔
Heres what happens when you have a major wildfire event and still account for it in your inventory:
Portugal 2017 (~18MtCO2)
Portugal 2017 (~18MtCO2)
January 17, 2025 at 8:30 AM
Heres what happens when you have a major wildfire event and still account for it in your inventory:
Portugal 2017 (~18MtCO2)
Portugal 2017 (~18MtCO2)