Deputy Editor, Our World in Data Senior Researcher, University of Oxford Climate, energy, environment, all things data.https://bsky.app/profile/hannahritchie.bsky.socialhttps://bsky.app/profile/hannahritchie.bsky.social/post/3md3wbd66ms2yMy new book — Clearing the Air — comes out in the US on February 19th 📚 Goodreads is running a giveaway, in case you want to enter and have a chance of getting a free copy! @mitpress.bsky.social https://www.goodreads.com/giveaway/show/431146-clearing-the-air-a-hopeful-guide-to-solving-climate-change-in-50-questi23 Jan 2026 14:34 +0000at://did:plc:tywkpd4s5utvhnucftqtsjyc/app.bsky.feed.post/3md3wbd66ms2yhttps://bsky.app/profile/hannahritchie.bsky.social/post/3makltxla6k2yIf you’re looking for some holiday reading, my new book — Clearing the Air — is on offer at £1.99 on Kindle for the next 24 hours. Hope you enjoy! https://www.amazon.co.uk/Clearing-Air-Hopeful-Solving-Questions-ebook/dp/B0DF5VNB2P/ref=tmm_kin_swatch_022 Dec 2025 06:22 +0000at://did:plc:tywkpd4s5utvhnucftqtsjyc/app.bsky.feed.post/3makltxla6k2yhttps://bsky.app/profile/hannahritchie.bsky.social/post/3m7k4ujxlhk2nThe Warming Stripes have been an iconic way to communicate temperature data. On the latest episode of the podcast, we got to speak to their creator, @edhawkins.org. As a fellow data viz nerd, this was a fun one. The latest episode of our podcast: https://podcasts.apple.com/gb/podcast/prof-ed-hawkins-how-to-start-climate-conversations/id1776500195?i=100074034782609 Dec 2025 08:29 +0000at://did:plc:tywkpd4s5utvhnucftqtsjyc/app.bsky.feed.post/3m7k4ujxlhk2nhttps://bsky.app/profile/hannahritchie.bsky.social/post/3m7an2jfyuk2oWhat happened on energy and climate in China this year? A summary of the data, mostly drawing on the latest report from Centre for Research on Energy and Clean Air (by @laurimyllyvirta.bsky.social & team). My latest Substack: https://www.sustainabilitybynumbers.com/p/chinese-emissions-202505 Dec 2025 13:52 +0000at://did:plc:tywkpd4s5utvhnucftqtsjyc/app.bsky.feed.post/3m7an2jfyuk2ohttps://bsky.app/profile/hannahritchie.bsky.social/post/3m73vetqtpk2cWhen people see me working with headphones on, they probably assume I'm listening to calming classical or focus music. In reality, I'm blaring rap and grime.03 Dec 2025 16:37 +0000at://did:plc:tywkpd4s5utvhnucftqtsjyc/app.bsky.feed.post/3m73vetqtpk2chttps://bsky.app/profile/hannahritchie.bsky.social/post/3m73uci3m2c2cJust discovered that Spotify does a "Wrapped for Authors" on their audiobook demographics for the year. Fun! In my experience, climate/energy stuff is usually quite male-skewed, but I was pleasantly surprised to see that my book listeners weren't skewed *that* much!03 Dec 2025 16:18 +0000at://did:plc:tywkpd4s5utvhnucftqtsjyc/app.bsky.feed.post/3m73uci3m2c2chttps://bsky.app/profile/hannahritchie.bsky.social/post/3m5gwghia2k25Good thread from Dave about the new IEA "Current Policies Scenario" making a lot of the headlines. Here is a very quick mock-up I made of what this scenario assumes for solar PV additions through to 2035, with historical context. I'll let you decide whether this seems likely. [contains quote post or other embedded content]12 Nov 2025 15:05 +0000at://did:plc:tywkpd4s5utvhnucftqtsjyc/app.bsky.feed.post/3m5gwghia2k25https://bsky.app/profile/hannahritchie.bsky.social/post/3m5duxlqvis2bRIP Quentin Wilson. A great communicator and advocate for electrified transport. His calm way of calling out misinformation and trying to cross the divide will be sorely missed. A nice tribute video from: @bobbyllew.bsky.social https://youtu.be/NlTalT3faSM?si=jT3_lAyQwLe5-RzO11 Nov 2025 10:01 +0000at://did:plc:tywkpd4s5utvhnucftqtsjyc/app.bsky.feed.post/3m5duxlqvis2bhttps://bsky.app/profile/hannahritchie.bsky.social/post/3m4gkb5knrk2mIn 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. https://news.gallup.com/poll/696599/obesity-rate-declining.aspx30 Oct 2025 18:02 +0000at://did:plc:tywkpd4s5utvhnucftqtsjyc/app.bsky.feed.post/3m4gkb5knrk2mhttps://bsky.app/profile/hannahritchie.bsky.social/post/3m4aqcectlc2cOne 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: https://www.sustainabilitybynumbers.com/p/artificial-intelligence-could-dramatically28 Oct 2025 10:34 +0000at://did:plc:tywkpd4s5utvhnucftqtsjyc/app.bsky.feed.post/3m4aqcectlc2chttps://bsky.app/profile/hannahritchie.bsky.social/post/3m3n7fdegn22jMy favourite event of the year 🧵👇 [contains quote post or other embedded content]20 Oct 2025 16:11 +0000at://did:plc:tywkpd4s5utvhnucftqtsjyc/app.bsky.feed.post/3m3n7fdegn22jhttps://bsky.app/profile/hannahritchie.bsky.social/post/3m33oj553bk2cOn 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: https://howtoacademy.com/events/how-to-solve-climate-change-in-50-questions-and-answers/13 Oct 2025 16:54 +0000at://did:plc:tywkpd4s5utvhnucftqtsjyc/app.bsky.feed.post/3m33oj553bk2chttps://bsky.app/profile/hannahritchie.bsky.social/post/3lzjauax3qs23Many 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 https://drawdown.org/explorer23 Sep 2025 15:36 +0000at://did:plc:tywkpd4s5utvhnucftqtsjyc/app.bsky.feed.post/3lzjauax3qs23https://bsky.app/profile/hannahritchie.bsky.social/post/3lzi2zm4hh222What 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: https://open.spotify.com/episode/4aMv3y9bS6E93l9pmcN0F523 Sep 2025 04:19 +0000at://did:plc:tywkpd4s5utvhnucftqtsjyc/app.bsky.feed.post/3lzi2zm4hh222https://bsky.app/profile/hannahritchie.bsky.social/post/3lz6bhecyps2xNext book on the reading list 📚19 Sep 2025 06:48 +0000at://did:plc:tywkpd4s5utvhnucftqtsjyc/app.bsky.feed.post/3lz6bhecyps2x