Louisville uses trees to tackle urban heat and health disparities

A decade after Louisville became the fastest-growing urban heat island in the US, a groundbreaking study shows that planting trees in underserved areas leads to health improvements by lowering inflammation rates among residents.

Linda Baker reports for Bloomberg.

In short:

Louisville earned a $12.6 million federal grant to plant trees in low-income neighborhoods, reducing extreme heat and air pollution.
The Green Heart Louisville study revealed a 13-20% reduction in inflammation markers among residents, reducing heart disease risks.
The project pioneers using mature trees and data-driven planting to target areas most affected by air pollution.

Key quote:

“There is nowhere you can put a tree where it doesn’t improve the situation in terms of cooling and air quality.”

— Brian Stone, director of the Urban Climate Lab at Georgia Tech University

Why this matters:

The results are part of a growing body of research that suggests urban trees are more than just a way to beautify a neighborhood. They may be a prescription for better health, especially in marginalized communities facing higher pollution levels and rising temperatures. Read more: Trees, science and the goodness of green space.

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Louisville uses trees to tackle urban heat and health disparities

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