By the Numbers
Hannah RitchieUsing data and research to understand what really makes a difference
| Platform |  | Pricing | Only free issues | Publishes | Weekly |
|---|---|---|---|---|---|
| Issues | 160 | Founded | 4 years ago | Last Issue | 5 days ago |
| Active | |||||
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How much deforestation is your country importing through trade?
Deforestation is nearly always reported and measured based on the country where it happens.
In high-income countries, deforestation rates are now very low (we did most of our forest clearing a century or more ago to make space for agricult...
How quickly do electric car sales translate into cars on the road?
Last month, the International Energy Agency (IEA) published its estimates of electric car sales data for 2025. I updated all of this data in our charts on Our World in Data, if you want to dive into more detail.
Here, I wanted to share jus...
Do more Europeans die of summer heat than Americans die of guns?
The chart below has been doing the rounds on social media. The headline is really about how poorly Europe protects people from heat. But the flip is also true for America and guns. European policy protects people against guns, but not heat;...
What will future population change look like?
The huge declines in global fertility rates — and what this means for population growth and age structures going forward — gets a lot of attention these days.1
Much of these discussions use the United Nations’ population projections as the...
How much electricity does AI consume? [2025 summary]
Over the past year, I’ve written a few articles about the energy (and carbon) footprint of individual use of artificial intelligence, mostly in the form of asking LLMs (or chatbots) questions.
The problem is that until recently, the latest...
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