“Trees filter our air and water and increase biodiversity in our neighborhoods by providing habitats for animals. Just being near them has been shown to improve our health: One study found that people who live on tree-dense blocks are less likely to suffer from hypertension, obesity and diabetes than those who don’t.”

“…In a study published this week in Proceedings of the Royal Society B, scientists report that urban warming was associated with an estimated 12% loss of carbon sequestration, or the ability of trees to store carbon.”

http://www.latimes.com/science/sciencenow/la-sci-sn-urban-warming-trees-20161004-snap-story.html