The UK needs to build more reservoirs
We haven't built any in my lifetime, despite population growth and a changing climate.
By the Numbers
Using data and research to understand what really makes a difference
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Latest posts
Tracking global food production through a record El Niño
An interactive tool to explore historical data on food production, and updated forecasts from the USDA.
Is Europe having a bad wildfire year?
Several countries in Europe are having a very large wildfire year; this is offset by lower burn in the Balkans
Thailand’s population has already peaked
My colleague, Edouard Mathieu, recently created an interactive map showing when the populations of countries around the world are expected to peak.
My book — Clearing the Air — is coming out in paperback in September
And this week you can get 25% off in the UK.
How much deforestation is your country importing through trade?
An interactive tool to explore deforestation flows across the world.
How quickly do electric car sales translate into cars on the road?
And other insights from the electric car rollout in 2025.
Do more Europeans die of summer heat than Americans die of guns?
An attempt to improve a viral chart.
What will future population change look like?
A new tool that let's you imagine different futures of where we might be headed
How much electricity does AI consume? [2025 summary]
What share of electricity is consumed by data centres? What's the energy footprint of ChatGPT and other chatbots?