By the Numbers

Substacknewsletter · by Hannah Ritchie · English

Using data and research to understand what really makes a difference

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Audience
78K subscribers
Shown publicly on Substack
Publishing
Monthly or less
4 posts indexed in the last 90 days
Last post
Sep 14, 2026
47 days ago
Likely audience
Public policy analysts
Inferred from post content

By the Numbers is a Substack newsletter by Hannah Ritchie covering Open Data, Energy Data and Data Visualization. NewsletterFIT indexed 4 posts from it in the last 90 days, most recently on Sep 14, 2026. Shown publicly on Substack: 78K subscribers.

Topics

Recent posts

  • US Energy…
  • Young people…
  • Forget more…
  • The UK…

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No sponsored posts detected in the last 180 days of indexed posts.

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Compiled from public pages · refreshed Oct 13, 2026 · How NewsletterFIT collects and labels data