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Our World in Data
@ourworldindata.org
Research and data to make progress against the world’s largest problems. Based out of Oxford University (@ox.ac.uk), founded by @maxroser.bsky.social.
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The world is awful. The world is much better. The world can be much better.

All three statements are true at the same time. Understanding this is key to solving big global problems.

We believe data & research can help us understand both the problems we face & the progress that’s possible. 🧵
@hannahritchie.bsky.social, our Deputy Editor and Science Outreach Lead, recently received an award for her climate change communication from the United Nations Information Centre Prague (UNIC) in the Czech Republic.
December 3, 2025 at 6:09 PM
How many lives would be saved if Africa had other regions’ child mortality rates?

One of the starkest expressions of global inequality is a child’s chance of survival.
December 2, 2025 at 3:03 PM
A diverse range of mammals once roamed the planet. This changed dramatically with the arrival of humans, who have become the dominant species through our own population, as well as the animals we breed and raise for food.

What is the distribution of the global mammal kingdom today?
December 1, 2025 at 10:12 AM
American homicide victims are mostly men, except when the killer is an intimate partner—

Almost 20,000 Americans were murdered in 2023.

The chart shows the homicide rates among male and female victims. Men were 2.7 times more likely to die by homicide than women.
November 29, 2025 at 10:53 AM
In The OWID Brief newsletter, we have a section where our team writes about interesting things we've been reading lately.

In today's edition, we wrote about articles in Transformer and VoxDev:

www.transformernews.ai/p/claude-son...

voxdev.org/topic/trade/...
November 28, 2025 at 5:19 PM
Reposted by Our World in Data
This is a great opportunity to work with our founder, @maxroser.bsky.social, and colleagues at Oxford — and the data produced by the project will be hosted on Our World in Data.
We’re recruiting a Postdoctoral Researcher to join a new Oxford Martin programme led by renowned innovation scholars: Prof @maxroser.bsky.social, Prof @doynefarmer.bsky.social & Dr @francoislafond.bsky.social.

Help shape global insights into how technologies evolve.

Link in thread ⬇️
November 12, 2025 at 5:26 PM
China’s fertility rate has fallen to one, continuing a long decline that began before and continued after the one-child policy—

The 1970s were a decade shaped by fears about overpopulation. As the world’s most populous country, China was never far from the debate.
November 27, 2025 at 12:54 PM
Shortly after the end of the last great ice age — 10,000 years ago — 57% of the world’s habitable land was covered by forest.

In the millennia since then, a growing demand for agricultural land means we’ve lost one-third of global forests — an area twice the size of the United States.
November 26, 2025 at 1:58 PM
📊 Data update: We now show the latest GDP growth projections from the IMF

In the spring and fall each year, the International Monetary Fund (IMF) publishes its World Economic Outlook. The latest report was published this past October.
November 25, 2025 at 6:35 PM
Seasonal flu kills about 700,000 people each year across the world—

(This Data Insight was written by @eortizospina.bsky.social.)

Seasonal influenza is sometimes seen as a mild illness, but it remains a major cause of death.
November 25, 2025 at 11:24 AM
Wild mammals once dominated the mammal kingdom. Not anymore. Today, humans and our livestock account for 98% of the world’s land mammals by weight, while wild land mammals are just 2%.
November 24, 2025 at 11:26 AM
Afghans report the lowest life satisfaction in the world—

Measuring happiness is difficult, but one way to understand how satisfied people are with their lives is to simply ask them.
November 22, 2025 at 10:49 AM
📊 Data update: The Penn World Table is an extensive database that helps us understand long-run, global trends in economic growth, working hours, productivity, and living standards.

We’ve updated 17 of our charts using the latest release.
November 21, 2025 at 5:28 PM
Women are much more likely than men to be killed by their intimate partner
November 20, 2025 at 3:41 PM
Human rights are rights that all people have, regardless of their country, gender, sexuality, ethnicity, or any other trait.

Among others, this includes: physical integrity rights, such as not being killed or tortured;...
November 19, 2025 at 3:18 PM
Recently we made it possible to embed archived versions of our interactive charts that never change or update, giving you full control over how the chart looks going forward.

It’s great to see publications using this feature! Here are recent examples, from earth.org and the German magazine, Stern.
November 18, 2025 at 3:04 PM
Growth of global GDP per capita has been remarkably steady over the past three decades
November 17, 2025 at 5:50 PM
In the last decades, the world has made fantastic progress against extreme poverty. In 1990, 2.3 billion people lived in extreme poverty. Since then, the number of extremely poor people has declined by 1.5 *billion* people. 🧵
November 17, 2025 at 11:24 AM
How much CO₂ can the world emit while limiting global temperature rise?
November 15, 2025 at 9:01 AM
📨 The OWID Brief newsletter keeps you up to date on all of our work, plus curated highlights from across Our World in Data and beyond — delivered right to your inbox twice a month.
November 14, 2025 at 2:12 PM
Watch our own @hannahritchie.bsky.social talk about her new book, Clearing the Air, which tackles 50 of the most common myths and misconceptions about climate change.

Check out the 3 podcast episodes featuring Hannah:

1/ Saving the World From Bad Ideas with Mark Lynas
Bad Idea #21 "We can’t solve climate change" with Hannah Ritchie
🔍 Episode Summary Is it too late to stop climate change — or do we still have reasons for hope? In this episode, Mark Lynas talks with data scientist and author Hannah Ritchie, Deputy Editor of…
www.youtube.com
November 13, 2025 at 4:06 PM
Global CO₂ emissions from fossil fuels are likely to increase this year, while those from land-use change will fall
November 13, 2025 at 8:40 AM
This is a great opportunity to work with our founder, @maxroser.bsky.social, and colleagues at Oxford — and the data produced by the project will be hosted on Our World in Data.
We’re recruiting a Postdoctoral Researcher to join a new Oxford Martin programme led by renowned innovation scholars: Prof @maxroser.bsky.social, Prof @doynefarmer.bsky.social & Dr @francoislafond.bsky.social.

Help shape global insights into how technologies evolve.

Link in thread ⬇️
November 12, 2025 at 5:26 PM
The largest mammals have always been at the greatest risk of extinction – this is still the case today. 🧵

The wipeout of the largest mammals is a global phenomenon that we see across many regions.
November 12, 2025 at 1:04 PM
There are huge differences in death rates from road injuries, even across high-income countries
November 11, 2025 at 2:44 PM