Study in Philadelphia links growth in tree canopy to decrease in human mortality — ScienceDaily
https://www.sciencedaily.com/releases/2020/06/200616135820.htm
https://www.sciencedaily.com/releases/2020/06/200616135820.htm
https://www.weforum.org/agenda/2020/07/tiny-urban-forests-miyawaki-biodiversity-carbon-capture/