“Cool” years are now hotter than the “warm” years of the past: tracking global temperatures through El Niño and La Niña
The world is warming despite natural fluctuations from the El Niño cycle.
Latest:Our latest articles, updates and announcements
The baby boom in seven charts
The baby boom reshaped family life and drove population growth in many countries. In this article, we explore the key patterns in seven charts.Why the total fertility rate doesn’t necessarily tell us the number of births women eventually have
The fertility rate is commonly confused with the eventual number of births per woman. This can result in misinterpreting the impact of policies and trends over time.Explore changing patterns in fertility worldwide
Data on fertility rates, ages of mothers and fathers at childbirth, twin births, reproductive technologies, contraception, and more.In many countries, people breathe the cleanest air in centuries. What can the rest of the world learn from this?
Air pollution tends to get worse before it gets better, but how can we accelerate this transition?Our founder, Max Roser, has received two prestigious honors
An honorary doctorate from KU Leuven & UCLouvain and a “Dove of Peace” in Germany.If we can make maternal deaths as rare as in the healthiest countries, we can save 275,000 mothers each year
Maternal mortality was much more common in the past. It is much lower today, but global inequalities are still large.Watch our founder, Max Roser, share the story of Our World in Data
Check out the new video from Oxford Social Sciences, where Max shares his journey with this project.How much in subsidies do fossil fuels receive?
Estimates range from less than $1 trillion to $7 trillion. Where do these numbers come from?Introducing our new trustees, Claire Melamed and Michael Blastland
We are very excited to share that Claire Melamed and Michael Blastland have joined our Board of Trustees.Scaling up: how increasing inputs has made artificial intelligence more capable
The path to recent advanced AI systems has been more about building larger systems than making scientific breakthroughs.The great global redistributor we never hear about: money sent or brought back by migrants
Migrants send or bring back over three times the amount of global foreign aid. Cutting transaction fees could make this support even more effective in reducing poverty.Who would have won the Simon-Ehrlich bet over different decades, and what do long-term prices tell us about resource scarcity?
In the 1980s, economist Julian Simon won his bet with biologist Paul Ehrlich on mineral prices. But what does the long-term data tell us about supply and demand for resources?Antibiotics transformed medicine but face challenges from resistance and misuse
Antibiotics revolutionized medicine, but their effectiveness is threatened by resistance. This new page presents global data and research on antibiotics and antibiotic resistance.What was the Golden Age of Antibiotics, and how can we spark a new one?
Many antibiotics were developed during the “Golden Age of Antibiotics”. How did it happen, why has antibiotic development slowed down since then, and what can we do to reignite it?How do antibiotics work, and how does antibiotic resistance evolve?
To use antibiotics more effectively, it’s important to know how different antibiotics work and how antibiotic resistance can evolve and spread.Most international migrants don’t move very far from their home countries
Long-distance moves are becoming more common, but they remain the exception. For most, international migration still means crossing a nearby border, not an ocean.Large amounts of antibiotics are used in livestock, but several countries have shown this doesn’t have to be the case
Overuse is a risk for antibiotic resistance, but there are ways to reduce it.Public data on antibiotic use in livestock is incomplete, making it difficult to track how much is used and where
Many countries refuse to share their data, which is a risk for antimicrobial resistance.US airlines have transported passengers for more than two light-years since the last plane crash
Sometimes, the most important news is when something isn’t happening.Billions of people suffer from anemia, but there are cheap ways to reduce this
In some countries, most children and pregnant women are anemic. There are low-cost ways to tackle this.