
A new study on the health impact of greenness and mortality from the MISTRAL project has been published in Nature Communications, revealing how access to green spaces can prevent deaths in Italy.
The results underscore the critical need for strong action to increase the amount and accessibility of green spaces in all human settlements. More green means fewer deaths, making it imperative for policymakers to prioritize greening initiatives as a strategic component of public health and urban planning.
In this health impact assessment, the authors utilised satellite data to estimate the number of preventable deaths across Italy’s 49 million adult population by increasing residential greenness. The exposure was measured using the normalized difference vegetation index (NDVI) at a 10-meter resolution within a 300-meter radius from homes in 7,904 municipalities.
The study’s findings are remarkable. By achieving the level of residential greenness currently experienced by the top 25% of the population nationwide, the researchers estimate that a total of 28,433 (95% confidence interval: 21,400–42,350) deaths and 279,324 (210,247–415,980) years of life lost could have been prevented in Italy in 2022. This represents 5% of the total mortality burden in the considered municipalities.
This research highlights the significant benefits of green spaces on human health, a topic that has long been challenging for epidemiologists to quantify.
Read the study here.