About

Photo: Ryan Lash / TED

šŸ‘‹šŸ¼ Hi, Iā€™m Hannah.

Iā€™m a data scientist and science communicator. I focus on the largest problems that shape our world, and how to solve them.

Most of my work focuses on environmental sustainability, including climate change, energy, food and agriculture, biodiversity, air pollution and deforestation.

I’m Deputy Editor and Lead Researcher at Our World in Data, and a researcher at the Oxford Martin Programme in Global Development, at the University of Oxford.

Some other responsibilities / awards:


Where to find me

I write weekly (ish) on my Substack ā€“ Sustainability by Numbers.

You can find me on BlueSky and Twitter (@_HannahRitchie).

I have a podcast ā€” Solving for Climate ā€” with Rob Stewart.

Or reach me by email: hannah@ourworldindata.org


My first book: Not the End of the World

Find out more, and order here.


TED Talk