Green Spaces Save Kids' Lives in Poor Nations

Kids in low‑income nations often live in crowded cities where trees are disappearing fast. Urban growth brings better roads and clinics, but it also chops up green areas.

Researchers used health records from 2000 to 2019 in 57 poor countries. They linked each child's home address to satellite data on tree canopy. The goal was to see how tree cover relates to deaths of children under five.

The link was not straight; a little tree cover already cut risk a lot. When tree cover was low to medium, each extra percent of trees next to each other lowered death risk by about 0.17%. The hazard ratio was 0.9983, meaning the chance of dying fell just a touch.

The biggest chances to add trees were found in West Sudanian Savanna, eastern Punjab in Pakistan, and the Ganges‑Brahmaputra delta in Bangladesh. These spots have high child death rates and lots of room to grow canopy. Improving tree density could save lives and also help the climate.