# A marathon runner’s hard lesson

- Source: NYT World
- Published: 2026-10-29T16:40:36+00:00
- Category: World
- Original: https://www.nytimes.com/2026/10/29/climate/climate-marathon-running.html
- Canonical: https://groundlevelnews.com/story/a-marathon-runner-s-hard-lesson-4df81e/

Racing in Chicago showed your newsletter host firsthand how warming is disrupting the sport.

_Ground Level News shows a short summary only; the full article and all rights belong to NYT World._