Hannah Ritchie
@hannahritchie.bsky.social
Deputy Editor, Our World in Data
Senior Researcher, University of Oxford
Climate, energy, environment, all things data.
Senior Researcher, University of Oxford
Climate, energy, environment, all things data.
Reposted by Hannah Ritchie
China's new climate targets made it clear that policymakers are still leaving the door open to a rebound in emissions in the next few years, despite a recent falling trend and clean energy growth rates that will keep emissions falling if sustained.
🇨🇳 NEW | Experts think #China can exceed its new 2035 #NDCs, but are less certain about short-term #emissions cuts
Full China Climate Transition Outlook 2025 survey:
energyandcleanair.org/publication/chinas-climate-transition-outlook-2025-expert-survey/
w/ @belindaschaepe.bsky.social; Xunpeng Shi
Full China Climate Transition Outlook 2025 survey:
energyandcleanair.org/publication/chinas-climate-transition-outlook-2025-expert-survey/
w/ @belindaschaepe.bsky.social; Xunpeng Shi
November 6, 2025 at 5:10 AM
China's new climate targets made it clear that policymakers are still leaving the door open to a rebound in emissions in the next few years, despite a recent falling trend and clean energy growth rates that will keep emissions falling if sustained.
In a new Gallup poll in the US, 12.4% of adults said that they'd taken GLP-1 drugs for weight loss.
15% in women, and 9% in men.
I'd have guessed half as much, but I guess I'm a year behind the times.
news.gallup.com/poll/696599/...
15% in women, and 9% in men.
I'd have guessed half as much, but I guess I'm a year behind the times.
news.gallup.com/poll/696599/...
October 30, 2025 at 6:02 PM
In a new Gallup poll in the US, 12.4% of adults said that they'd taken GLP-1 drugs for weight loss.
15% in women, and 9% in men.
I'd have guessed half as much, but I guess I'm a year behind the times.
news.gallup.com/poll/696599/...
15% in women, and 9% in men.
I'd have guessed half as much, but I guess I'm a year behind the times.
news.gallup.com/poll/696599/...
Reposted by Hannah Ritchie
The ensemble mean of Google DeepMind's experimental machine learning weather model had Hurricane Melissa hitting Jamaica 7 days out. That's very impressive.
October 28, 2025 at 10:52 AM
The ensemble mean of Google DeepMind's experimental machine learning weather model had Hurricane Melissa hitting Jamaica 7 days out. That's very impressive.
One area where AI has a lot of potential is in weather forecasting and climate modelling.
Fairly accurate weather forecasting, in particular, is something that many of us now take for granted.
From my latest Substack: www.sustainabilitybynumbers.com/p/artificial...
Fairly accurate weather forecasting, in particular, is something that many of us now take for granted.
From my latest Substack: www.sustainabilitybynumbers.com/p/artificial...
Artificial intelligence could dramatically improve weather forecasting
An AI-based model outperformed every other in forecasting the Indian monsoon this year. This helped millions of farmers.
www.sustainabilitybynumbers.com
October 28, 2025 at 10:34 AM
One area where AI has a lot of potential is in weather forecasting and climate modelling.
Fairly accurate weather forecasting, in particular, is something that many of us now take for granted.
From my latest Substack: www.sustainabilitybynumbers.com/p/artificial...
Fairly accurate weather forecasting, in particular, is something that many of us now take for granted.
From my latest Substack: www.sustainabilitybynumbers.com/p/artificial...
My favourite event of the year 🧵👇
Time for 2025 updates to my annual “opinions about solar” thread. If you like these, you might like the second edition of my book, Solar Power Finance Without The Jargon. A 30% discount code WSQ0437 is valid on publisher website until end of November 2025.
www.worldscientific.com/worldscibook...
www.worldscientific.com/worldscibook...
Solar Power Finance Without the Jargon
www.worldscientific.com
October 20, 2025 at 4:11 PM
My favourite event of the year 🧵👇
Reposted by Hannah Ritchie
Big China electricity&industial data update🧵for September:
➡️Power generation from coal and gas dropped 5%, for a 1.2% fall in the first nine months of the year.
➡️Crude steel production fell by 5% and cement output by 9% in Sep, accelerating from 3% and 5% drops year-to-date.
➡️Power generation from coal and gas dropped 5%, for a 1.2% fall in the first nine months of the year.
➡️Crude steel production fell by 5% and cement output by 9% in Sep, accelerating from 3% and 5% drops year-to-date.
October 20, 2025 at 5:03 AM
Big China electricity&industial data update🧵for September:
➡️Power generation from coal and gas dropped 5%, for a 1.2% fall in the first nine months of the year.
➡️Crude steel production fell by 5% and cement output by 9% in Sep, accelerating from 3% and 5% drops year-to-date.
➡️Power generation from coal and gas dropped 5%, for a 1.2% fall in the first nine months of the year.
➡️Crude steel production fell by 5% and cement output by 9% in Sep, accelerating from 3% and 5% drops year-to-date.
On November 4th I'll be in London at the How To Academy, discussing and answering question about solutions to climate change, and how they stack up.
If you're interested in coming along, you can find details here:
howtoacademy.com/events/how-t...
If you're interested in coming along, you can find details here:
howtoacademy.com/events/how-t...
October 13, 2025 at 4:54 PM
On November 4th I'll be in London at the How To Academy, discussing and answering question about solutions to climate change, and how they stack up.
If you're interested in coming along, you can find details here:
howtoacademy.com/events/how-t...
If you're interested in coming along, you can find details here:
howtoacademy.com/events/how-t...
Reposted by Hannah Ritchie
This article is just bollocks, isn't it? There are lots of good reasons not to eat many Doritos, but the carbon footprint of the corn going into them isn't one of them, because eating almost anything else would be worse.
www.theguardian.com/environment/...
www.theguardian.com/environment/...
The hidden cost of ultra-processed foods on the environment: ‘The whole industry should pay’
Industrially made foods involve several ingredients and processes to put together, making it difficult to examine their true cost
www.theguardian.com
October 8, 2025 at 5:55 PM
This article is just bollocks, isn't it? There are lots of good reasons not to eat many Doritos, but the carbon footprint of the corn going into them isn't one of them, because eating almost anything else would be worse.
www.theguardian.com/environment/...
www.theguardian.com/environment/...
Reposted by Hannah Ritchie
Does the news reflect what we die from?
October 7, 2025 at 4:35 PM
Does the news reflect what we die from?
Reposted by Hannah Ritchie
NEW: GLOBAL RENEWABLES OVERTAKES COAL
How the heck did that happen so quickly?!...🧵
How the heck did that happen so quickly?!...🧵
October 7, 2025 at 6:06 AM
NEW: GLOBAL RENEWABLES OVERTAKES COAL
How the heck did that happen so quickly?!...🧵
How the heck did that happen so quickly?!...🧵
Reposted by Hannah Ritchie
Not nearly enough is made of the incredibly impressive feat Indian Railways has made to electrify almost 100% of its 135,000km of track, while also growing renewable sourcing. Huge:
timesofindia.indiatimes.com/business/ind...
timesofindia.indiatimes.com/business/ind...
Indian Railways to achieve net zero targets in 2025 itself - 5 years ahead of 2030 goal - Times of India
India Business News: Indian Railways is set to achieve net-zero targets by year-end, surpassing its 2030 goal through extensive electrification. Aiming for 95% electric tr
timesofindia.indiatimes.com
October 5, 2025 at 7:25 AM
Not nearly enough is made of the incredibly impressive feat Indian Railways has made to electrify almost 100% of its 135,000km of track, while also growing renewable sourcing. Huge:
timesofindia.indiatimes.com/business/ind...
timesofindia.indiatimes.com/business/ind...
Reposted by Hannah Ritchie
Some good news.
London is meeting legal limits for toxic NO2 pollution for the first time – almost 200 years earlier than predicted – following the Mayor’s "world leading air pollution policies," City Hall announces.
The Ultra Low Emissions Zone - and similar policies - really do work.
London is meeting legal limits for toxic NO2 pollution for the first time – almost 200 years earlier than predicted – following the Mayor’s "world leading air pollution policies," City Hall announces.
The Ultra Low Emissions Zone - and similar policies - really do work.
September 30, 2025 at 7:39 PM
Some good news.
London is meeting legal limits for toxic NO2 pollution for the first time – almost 200 years earlier than predicted – following the Mayor’s "world leading air pollution policies," City Hall announces.
The Ultra Low Emissions Zone - and similar policies - really do work.
London is meeting legal limits for toxic NO2 pollution for the first time – almost 200 years earlier than predicted – following the Mayor’s "world leading air pollution policies," City Hall announces.
The Ultra Low Emissions Zone - and similar policies - really do work.
Reposted by Hannah Ritchie
Foreign aid from the United States saved millions of lives each year by @hannahritchie.bsky.social and @simonvanteutem.bsky.social
ourworldindata.org/us-foreign-a...
ourworldindata.org/us-foreign-a...
Foreign aid from the United States saved millions of lives each year
For decades, these aid programs received bipartisan support and made a difference. Cutting them will cost lives.
ourworldindata.org
September 29, 2025 at 2:59 PM
Foreign aid from the United States saved millions of lives each year by @hannahritchie.bsky.social and @simonvanteutem.bsky.social
ourworldindata.org/us-foreign-a...
ourworldindata.org/us-foreign-a...
Many people feel overwhelmed with the number of potential climate solutions, and are not quite sure what to focus on.
@projectdrawdown.bsky.social has always been at helping people navigate the minefield.
Their new explorer is really cool, and helps to make things clearer: drawdown.org/explorer
@projectdrawdown.bsky.social has always been at helping people navigate the minefield.
Their new explorer is really cool, and helps to make things clearer: drawdown.org/explorer
Drawdown® Explorer
We know what we need to do: stop climate change as quickly as possible. Now, with the Drawdown Explorer, we know how to do it.
drawdown.org
September 23, 2025 at 3:36 PM
Many people feel overwhelmed with the number of potential climate solutions, and are not quite sure what to focus on.
@projectdrawdown.bsky.social has always been at helping people navigate the minefield.
Their new explorer is really cool, and helps to make things clearer: drawdown.org/explorer
@projectdrawdown.bsky.social has always been at helping people navigate the minefield.
Their new explorer is really cool, and helps to make things clearer: drawdown.org/explorer
What impact do contrails from aviation have on global warming? Is there a cheap and easy way to get rid of them? There might be.
In the latest episode of Solving for Climate we speak with Ian McKay, founder of Orca Sciences about this and much more.
Listen here: open.spotify.com/episode/4aMv...
In the latest episode of Solving for Climate we speak with Ian McKay, founder of Orca Sciences about this and much more.
Listen here: open.spotify.com/episode/4aMv...
September 23, 2025 at 4:19 AM
What impact do contrails from aviation have on global warming? Is there a cheap and easy way to get rid of them? There might be.
In the latest episode of Solving for Climate we speak with Ian McKay, founder of Orca Sciences about this and much more.
Listen here: open.spotify.com/episode/4aMv...
In the latest episode of Solving for Climate we speak with Ian McKay, founder of Orca Sciences about this and much more.
Listen here: open.spotify.com/episode/4aMv...
Next book on the reading list 📚
September 19, 2025 at 6:48 AM
Next book on the reading list 📚
Reposted by Hannah Ritchie
NEW – Analysis: India’s power-sector CO2 falls for only second time in half a century
✍️ Anubha Aggarwal @laurimyllyvirta.bsky.social Nandikesh Sivalingam
Read here: buff.ly/2OHaLGM
✍️ Anubha Aggarwal @laurimyllyvirta.bsky.social Nandikesh Sivalingam
Read here: buff.ly/2OHaLGM
September 17, 2025 at 11:02 PM
NEW – Analysis: India’s power-sector CO2 falls for only second time in half a century
✍️ Anubha Aggarwal @laurimyllyvirta.bsky.social Nandikesh Sivalingam
Read here: buff.ly/2OHaLGM
✍️ Anubha Aggarwal @laurimyllyvirta.bsky.social Nandikesh Sivalingam
Read here: buff.ly/2OHaLGM
September 18, 2025 at 11:07 AM
I really enjoy the wide-ranging (and often provocative) conversations Mark Lynas has on his @weplanetint.bsky.social podcast.
So I was very happy to join him again to talk more about climate change and what we do to fix it.
www.weplanet.org/podcast/epis...
So I was very happy to join him again to talk more about climate change and what we do to fix it.
www.weplanet.org/podcast/epis...
WePlanet Podcast | Saving The World From Bad Ideas
a WePlanet podcast.
The world is shaped by ideas—some good, some bad, and some that seemed good at the time.
This is a podcast about rethinking the things we take for granted, challenging sacred cows...
www.weplanet.org
September 18, 2025 at 10:26 AM
I really enjoy the wide-ranging (and often provocative) conversations Mark Lynas has on his @weplanetint.bsky.social podcast.
So I was very happy to join him again to talk more about climate change and what we do to fix it.
www.weplanet.org/podcast/epis...
So I was very happy to join him again to talk more about climate change and what we do to fix it.
www.weplanet.org/podcast/epis...
Reposted by Hannah Ritchie
Imagine all cars were electric, and then one Volkswagen engineer comes up with another idea …
#EMobility
#EMobility
August 11, 2025 at 10:46 AM
Imagine all cars were electric, and then one Volkswagen engineer comes up with another idea …
#EMobility
#EMobility
Reposted by Hannah Ritchie
This week, @MLiebreich talks to @hannahritchie.bsky.social
about her new book 'Clearing the Air', busting 50 climate myths and digging into what really works (and what doesn’t). Out now 🔗 www.youtube.com/watch?v=voLb...
about her new book 'Clearing the Air', busting 50 climate myths and digging into what really works (and what doesn’t). Out now 🔗 www.youtube.com/watch?v=voLb...
September 17, 2025 at 5:01 PM
This week, @MLiebreich talks to @hannahritchie.bsky.social
about her new book 'Clearing the Air', busting 50 climate myths and digging into what really works (and what doesn’t). Out now 🔗 www.youtube.com/watch?v=voLb...
about her new book 'Clearing the Air', busting 50 climate myths and digging into what really works (and what doesn’t). Out now 🔗 www.youtube.com/watch?v=voLb...
A decade of change.
In 2014, less than 4% of the world's electricity came from solar and wind. In 2024, this was 15%.
Here's how the distribution across countries has changed (+ shifted upwards) over those 10 years.
Data from @ember-energy.org
In 2014, less than 4% of the world's electricity came from solar and wind. In 2024, this was 15%.
Here's how the distribution across countries has changed (+ shifted upwards) over those 10 years.
Data from @ember-energy.org
September 17, 2025 at 1:25 PM
A decade of change.
In 2014, less than 4% of the world's electricity came from solar and wind. In 2024, this was 15%.
Here's how the distribution across countries has changed (+ shifted upwards) over those 10 years.
Data from @ember-energy.org
In 2014, less than 4% of the world's electricity came from solar and wind. In 2024, this was 15%.
Here's how the distribution across countries has changed (+ shifted upwards) over those 10 years.
Data from @ember-energy.org
Reposted by Hannah Ritchie
"A refreshingly pragmatic and undoomy book."
The Guardian just published a great review of @hannahritchie.bsky.social's new book 'Clearing the Air'.
The book will be out in 2 days.
If you are unsure whether you want to read it, the review gives a good overview: www.theguardian.com/books/2025/s...
The Guardian just published a great review of @hannahritchie.bsky.social's new book 'Clearing the Air'.
The book will be out in 2 days.
If you are unsure whether you want to read it, the review gives a good overview: www.theguardian.com/books/2025/s...
Clearing the Air by Hannah Ritchie review – practical climate optimism
A data scientist rebuts 50 arguments against green technology with lively pragmatism and authority
www.theguardian.com
September 16, 2025 at 8:52 PM
"A refreshingly pragmatic and undoomy book."
The Guardian just published a great review of @hannahritchie.bsky.social's new book 'Clearing the Air'.
The book will be out in 2 days.
If you are unsure whether you want to read it, the review gives a good overview: www.theguardian.com/books/2025/s...
The Guardian just published a great review of @hannahritchie.bsky.social's new book 'Clearing the Air'.
The book will be out in 2 days.
If you are unsure whether you want to read it, the review gives a good overview: www.theguardian.com/books/2025/s...
Cement is responsible for around 7-8% of carbon emissions.
How do we decarbonise it?
This week on Solving for Climate we talk to Leah Ellis, CEO of Sublime Systems, about how we might solve for low-carbon cement.
Listen here:
open.spotify.com/episode/3PXb...
How do we decarbonise it?
This week on Solving for Climate we talk to Leah Ellis, CEO of Sublime Systems, about how we might solve for low-carbon cement.
Listen here:
open.spotify.com/episode/3PXb...
September 16, 2025 at 4:58 AM
Cement is responsible for around 7-8% of carbon emissions.
How do we decarbonise it?
This week on Solving for Climate we talk to Leah Ellis, CEO of Sublime Systems, about how we might solve for low-carbon cement.
Listen here:
open.spotify.com/episode/3PXb...
How do we decarbonise it?
This week on Solving for Climate we talk to Leah Ellis, CEO of Sublime Systems, about how we might solve for low-carbon cement.
Listen here:
open.spotify.com/episode/3PXb...
Reposted by Hannah Ritchie
It's here folks. Part II of the Pragmatic Climate Reset. Prepare to be provoked! about.bnef.com/insights/cle...
Liebreich: The Pragmatic Climate Reset – Part II: A Provocation | BloombergNEF
As the debate on transition deepens, Michael Liebreich details how a pragmatic climate and energy reset might unfold.
about.bnef.com
September 12, 2025 at 6:00 AM
It's here folks. Part II of the Pragmatic Climate Reset. Prepare to be provoked! about.bnef.com/insights/cle...