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Max Roser

@maxroser.bsky.social

166 Following34k Followers

— Founder of Our World in Data — Professor at the University of Oxford Data to understand global problems and research to make progress against them.

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@maxroser.bsky.socialOct 8, 2026, 9:40 AM

My colleague @hannahritchie.bsky.social has published a brief guide to the new 'Living Planet Index' report that just got published today.

Here it is: ourworldindata.org/2026-lpi-upd...

@maxroser.bsky.socialOct 6, 2026, 11:17 AM

This is today's @ourworldindata.org Data Insight — and here you can find all of them: ourworldindata.org/data-insights

@maxroser.bsky.socialOct 6, 2026, 10:52 AM

The share of children who died before they were 5 years old in 1950 and 75 years later. Africa: 33% ↘ 6% Asia: 25% ↘ 2.5% Oceania: 9.3% ↘ 2% Latin America: 21% ↘ 1.5% Northern America: 3.8% ↘ 0.6% Europe: 10.5% ↘ 0.4% Globally: 23% ↘ 3.5%

@maxroser.bsky.socialJun 17, 2026, 10:10 AM

Just read that Abdullah Ibrahim has sadly died this week.

He died at 91 and played wonderful music until his very end. One of my very favourite musicians.

If you don't know him, listen to his Blue Bolero — it's the just the first 2 minutes of this.
www.youtube.com/watch?v=L5i4...

youtube.comAbdullah Ibrahim: Tiny Desk (Home) ConcertYouTube video by NPR Music
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@maxroser.bsky.socialJun 12, 2026, 6:06 PM

This is from my article 'The end of progress against extreme poverty?'

ourworldindata.org/end-progress...

ourworldindata.orgThe end of progress against extreme poverty?In the last three decades, the world has made progress against extreme poverty faster than ever before. But unless the poorest economies start growing, this period of progress against the worst form o...
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@maxroser.bsky.socialJun 12, 2026, 6:06 PM

The poorest economies in the world are not achieving economic growth. The consequence is that progress against the very worst poverty is coming to a halt. This is one of the worst problems in the world today, but hardly gets any attention.

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@maxroser.bsky.socialJun 11, 2026, 7:25 PM

A way to see the amazing history of economic growth and declining poverty over the last two centuries.

(from the article 'What is economic growth?' ourworldindata.org/what-is-economic-growth)

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@maxroser.bsky.socialMay 29, 2026, 4:05 PM

Most career advice is disappointingly shallow. Which is really tragic, given how important a decision it is.

It's a decision worth reading a good book about.

Ben Todd is the most thoughtful person on career choice I know. He spent 15 years researching it. Now his book is out:
80000hours.org/book/

80000hours.orgOrder the 80,000 Hours book | 80,000 Hours
@maxroser.bsky.socialMay 28, 2026, 8:01 AM

here it is: ourworldindata.org/population-simulation-tool

ourworldindata.orgPopulation tool: How will populations across the world change in the 21st century?We created an interactive tool that lets you test how changes in fertility rates, life expectancy, and migration rates will change future populations.
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@maxroser.bsky.socialMay 28, 2026, 8:00 AM

How will your country's demographics change this century? At Our World in Data, we built a tool to let you see for yourself. The UN's assumptions are the starting point. But then you can adjust the three drivers of change — births, deaths, and migration — to what you expect.

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@conradhackett.bsky.socialMay 20, 2026, 4:12 AMReposted by @maxroser.bsky.social

Congratulations to the data wizards at @ourworldindata.org who created this elegant tool so you can adjust fertility, mortality & migration rates for any country to see the impact on population sizes & age structures.

This is really, really great!! Check it out!! Excellent tool, terrific write up.

OOur World in Data@ourworldindata.orgMay 18, 2026, 4:10 PM

How will populations across the world change in the 21st century? 🔧 Explore for yourself with our new interactive tool!

An image of the new interactive population simulation tool from Our World in Data, showing South Korea.
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@hankgreen.bsky.socialApr 30, 2026, 8:20 PMReposted by @maxroser.bsky.social

Some people say we don’t build beautiful things anymore and, like, lol. Motherfuckers, we built this:

A graph from Our World In Data showing a precipitous drop in child mortality starting in the late 1800s going from an average of 48% to global rate of 27% in 1950 to the 2020 infant mortality rate of 4%, with some countries having a rate as low as 0.3%
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@ourworldindata.orgApr 15, 2026, 8:43 AMReposted by @maxroser.bsky.social

📢 We’re looking for a writer to join our team at Our World in Data! What we’re looking for is quite unique: someone who writes excellent narrative articles on large global problems, finds memorable framings to make hard ideas easier to understand, while being genuinely obsessed w/ technical details

ourworldindata.orgWe’re looking for a writerWe’re hiring a writer who can make the world’s largest problems understandable to our large Our World in Data audience.
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@bastianherre.bsky.socialFeb 25, 2026, 1:00 PMReposted by @maxroser.bsky.social

Hey Bluesky hivemind! What are the best data sources for the overall death tolls of wars? So not just dead soldiers, but also civilians, and deaths from disease and starvation due to the fighting. Are Necrometrics and Wikipedia as flawed as they seem — or do they actually hold up to some scrutiny?

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@maxroser.bsky.socialFeb 16, 2026, 10:02 PM

'Four minutes of air conditioning'

The new, excellent essay by my colleague @hannahritchie.bsky.social on energy poverty.

ourworldindata.org/four-minutes...

ourworldindata.orgFour minutes of air conditioningBillions of people have access to far less electricity per day than is required to run an air conditioner for just one hour.
@maxroser.bsky.socialJan 6, 2026, 12:04 PM

This is from today's 'Data Insight' written by Pablo Rosado and me, and you can find all our team's insights here: ourworldindata.org/data-insights

ourworldindata.orgData InsightsBite-sized insights on how the world is changing, published every few days
@maxroser.bsky.socialJan 6, 2026, 12:02 PM

This chart documents one of humanity’s greatest achievements, in my view. We just lived through the fastest population growth in human history. It would have been impressive if food supplies had merely kept pace — but on every continent, they grew even faster than the population.

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@maxroser.bsky.socialDec 29, 2025, 6:37 AM

Thank you very much. Again for the grant, but also for this great thread now! And thank you, Michael — I didn't know this backstory, and really appreciate that you pointed out that you see value in what we do.

@gabrielzucman.bsky.socialDec 12, 2025, 12:32 PMReposted by @maxroser.bsky.social

It has become received wisdom in Brussels and Washington that there is a new “euro-sclerosis”: that the EU economy is lagging the US This view is wrong A little primer on the measurement of productivity – and why reports of the economic death of Europe are greatly exaggerated🧵

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@maxroser.bsky.socialDec 4, 2025, 12:32 PM

For Our World in Data, I've this article on how we can become the first generation that achieves a world in which forests expand — great to see how this looks in practice in a place where this has already been achieved.

ourworldindata.org/global-fores...

ourworldindata.orgHumans destroyed forests for thousands of years — we can become the first generation that achieves a world in which forests expandWhy has humanity destroyed such vast forests? And how can we bring this to an end?
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