52 things I learned in 2025 – – [a small selection from the list]
- In 2023, Nigeria had a million more births than the whole of Europe – Our World in Data, via Charles Onyango-Obbo]
- Childhood peanut allergies are falling dramatically, perhaps because advice to avoid peanuts was reversed. [Simar Bajaj]
- The serial killer epidemic in 1970–80s US may have been caused by lead fumes from cars and factories, and solved by environmental regulations. [Caroline Fraser via James Lasdun]
- Global suicide rates have declined by 29% since 2000, due to measures like pesticide bans, more responsible media reporting of suicide, mental health education in schools and improved healthcare responses. [Dévora Kestel & co, via Angus Hervey again]
