Urban tree canopy
1 paper5 findings
- 1 lab in 1 country
- 1 finding against
- Funders: Buffett Institute for Global Affairs, Northwestern University and 1 more
- Humans1
Outcomes
4Mortality
no changein humans1downin humans1
1 study
Mortality
no changein humans1downin humans1
Urban tree canopy has no effect on mortality in humans (IRR 0.995, 95% CI 0.984–1.007).
“Existing canopy coverage was not statistically significantly associated with mortality (incidence rate ratio [IRR] = 0.995, 95% confidence interval [CI] = 0.984-1.007).”
Humansn = 220,711
GeoHealth5 Aug 2026
Urban tree canopy decreases mortality in humans (IRR 0.902, 95% CI 0.871–0.935).
“each year-to-year percent increase in canopy was associated with around a 10% reduction in mortality (IRR = 0.902, [0.871-0.935])”
Humansn = 220,711
GeoHealth5 Aug 2026
Respiratory disease mortality
downin humans1
1 study
Respiratory disease mortality
downin humans1
Urban tree canopy decreases respiratory disease mortality in humans (IRR 0.887, 95% CI 0.833–0.945).
“and respiratory (IRR = 0.887, [0.833-0.945]) diseases”
Humansn = 220,711
GeoHealth5 Aug 2026
Mental health disease mortality
downin humans1
1 study
Mental health disease mortality
downin humans1
Urban tree canopy decreases mental health disease mortality in humans (IRR 0.836, 95% CI 0.784–0.892).
“mental health (IRR = 0.836, [0.784-0.892])”
Humansn = 220,711
GeoHealth5 Aug 2026
Cardiovascular disease mortality
downin humans1
1 study
Cardiovascular disease mortality
downin humans1
Urban tree canopy decreases cardiovascular disease mortality in humans (IRR 0.908, 95% CI 0.869–0.948).
“significant associations for cause-specific cardiovascular (IRR = 0.908, [0.869-0.948])”
Humansn = 220,711
GeoHealth5 Aug 2026