Our World in Data is a nonprofit project that publishes research and interactive charts on the biggest global problems: poverty, disease, hunger, climate change, energy, education, and population. Each topic page collects data from reliable sources, presents it in clear visualizations, and explains what the numbers show. The writing is accessible and doesn't assume prior knowledge, but it doesn't oversimplify either.

The project is based at Oxford University and makes all its data and code freely available. It's used by researchers, journalists, students, and anyone who wants to understand long-term trends rather than daily headlines. You can explore charts, download datasets, and read in-depth articles on specific questions. It's one of the best resources for getting a factual grounding on global development issues.