Demonstration only. Corollary is a non-commercial research demo — no warranty, no support, not for commercial use or clinical decisions. Read the disclaimer

All tools and databases

Statistics and economics · Database

Our World in Data

The data behind Our World in Data's charts on health, population, energy, environment and development, with sources for each.

What Our World in Data is

The data behind Our World in Data's charts on health, population, energy, environment and development, with sources for each.

Query it here

The research agent queries Our World in Data directly — no account, no API key — and every answer links back to the record it came from. Ask in plain language and it writes the query.

Questions

Can I search Our World in Data without writing code?

Yes. The research agent queries Our World in Data directly, with no account or API key, and cites the record behind every answer. Ask in plain language — for a gene, a protein, a compound or a study — and it builds the query for you.

Can I reuse data from Our World in Data?

CC BY 4.0; data from third parties keeps its source's licence. Each chart's metadata names its sources and how to cite them. Terms: https://ourworldindata.org/faqs#can-i-use-or-reproduce-your-data