Joeri Rogelj
@joerirogelj.bsky.social
prof. climate science & policy | father | Imperial College London | 1.5C/net zero/carbon budget/pathways/justice | IPCC & UNEP lead author | ESABCC member
It has been a privilege to contribute to this report as a lead author for the 16th year running.
November 4, 2025 at 10:07 PM
It has been a privilege to contribute to this report as a lead author for the 16th year running.
We explicitly highlight how delays in global emissions cuts mean that holding warming below 1.5C is not possible anymore.
The pursuit of limiting warming to 1.5C, however, remains imperative albeit from above instead of from below.
The pursuit of limiting warming to 1.5C, however, remains imperative albeit from above instead of from below.
November 4, 2025 at 4:17 PM
We explicitly highlight how delays in global emissions cuts mean that holding warming below 1.5C is not possible anymore.
The pursuit of limiting warming to 1.5C, however, remains imperative albeit from above instead of from below.
The pursuit of limiting warming to 1.5C, however, remains imperative albeit from above instead of from below.
We show new NDCs lower the highest global warming projections but fall well short of limiting warming below 1.5C.
November 4, 2025 at 4:17 PM
We show new NDCs lower the highest global warming projections but fall well short of limiting warming below 1.5C.
Reposted by Joeri Rogelj
Grantham Institute Director of Research Professor @joerirogelj.bsky.social was lead author on Chapter 4 of the report, which also includes contributions from Imperial’s Dr @robinlamboll.bsky.social.
Read the report in full here: ow.ly/V7Zy50XmtCz
Read the report in full here: ow.ly/V7Zy50XmtCz
November 4, 2025 at 3:01 PM
Grantham Institute Director of Research Professor @joerirogelj.bsky.social was lead author on Chapter 4 of the report, which also includes contributions from Imperial’s Dr @robinlamboll.bsky.social.
Read the report in full here: ow.ly/V7Zy50XmtCz
Read the report in full here: ow.ly/V7Zy50XmtCz
In this context, this forthcoming @granthamicl.bsky.social shortfilm on the UK’s net zero journey will offer a timely reflection on how science, institutions, and politics aligned to deliver evidence-based #ClimatePolicy serving the public interest. 2/2
bsky.app/profile/gran...
bsky.app/profile/gran...
COMING SOON…
In 2019, the UK made history as the first major economy to commit to net zero by 2050.
But, while the science hasn’t changed, political consensus is fracturing.
We can’t wait to share our new film & to tell the inside story of the UK’s climate target
Stay tuned…
👀13 October
In 2019, the UK made history as the first major economy to commit to net zero by 2050.
But, while the science hasn’t changed, political consensus is fracturing.
We can’t wait to share our new film & to tell the inside story of the UK’s climate target
Stay tuned…
👀13 October
October 9, 2025 at 2:01 PM
In this context, this forthcoming @granthamicl.bsky.social shortfilm on the UK’s net zero journey will offer a timely reflection on how science, institutions, and politics aligned to deliver evidence-based #ClimatePolicy serving the public interest. 2/2
bsky.app/profile/gran...
bsky.app/profile/gran...
Reposted by Joeri Rogelj
@joerirogelj.bsky.social: “The pursuit of 1.5°C endures as a legal and ethical imperative. Overshoot does not erase this goal - it makes it more urgent.”
He called overshoot a test of our generation’s responsibility.
#ScienceInAction #ParisAgreement
He called overshoot a test of our generation’s responsibility.
#ScienceInAction #ParisAgreement
September 15, 2025 at 9:33 AM
@joerirogelj.bsky.social: “The pursuit of 1.5°C endures as a legal and ethical imperative. Overshoot does not erase this goal - it makes it more urgent.”
He called overshoot a test of our generation’s responsibility.
#ScienceInAction #ParisAgreement
He called overshoot a test of our generation’s responsibility.
#ScienceInAction #ParisAgreement
Yes - if we don't use any of it for fossil CCS and emit zero CO2 in the meantime.
You'll also have to tell me what's the latest on perfect reversability of global warming after overshoot though. :)
You'll also have to tell me what's the latest on perfect reversability of global warming after overshoot though. :)
September 3, 2025 at 6:57 PM
Yes - if we don't use any of it for fossil CCS and emit zero CO2 in the meantime.
You'll also have to tell me what's the latest on perfect reversability of global warming after overshoot though. :)
You'll also have to tell me what's the latest on perfect reversability of global warming after overshoot though. :)
Reposted by Joeri Rogelj
Coauthor @joerirogelj.bsky.social Rogelj, Director of Research at the Grantham Institute says:
“This study should be a gamechanger for carbon storage. It can no longer be considered an unlimited solution to bring our climate back to a safe level.
“This study should be a gamechanger for carbon storage. It can no longer be considered an unlimited solution to bring our climate back to a safe level.
September 3, 2025 at 3:34 PM
Coauthor @joerirogelj.bsky.social Rogelj, Director of Research at the Grantham Institute says:
“This study should be a gamechanger for carbon storage. It can no longer be considered an unlimited solution to bring our climate back to a safe level.
“This study should be a gamechanger for carbon storage. It can no longer be considered an unlimited solution to bring our climate back to a safe level.
If you want to know the details, read to open source @nature.com publication, led by @gidden.bsky.social online. /end
www.nature.com/articles/s41...
www.nature.com/articles/s41...
A prudent planetary limit for geologic carbon storage - Nature
A risk-based, spatially explicit analysis of carbon storage in sedimentary basins establishes a prudent planetary limit of around 1,460 Gt of geological carbon storage, which requires making explicit ...
www.nature.com
September 3, 2025 at 3:39 PM
If you want to know the details, read to open source @nature.com publication, led by @gidden.bsky.social online. /end
www.nature.com/articles/s41...
www.nature.com/articles/s41...