Researchers with the US Forest Service and the University of California have recently performed research on the health benefits of trees. OK, we know that trees provide shade, consume CO2 and clean the air, but this research was more about how a lack of trees increases heart disease and respiratory illness.
Entomologists and Arborists have been studying mass tree die off from infestations of insects in the midwest and now in Southern California. Very similar to the pine beetle infestation we are experiencing in Colorado, but a different insect, different trees. Their study of the midwest tree die off showed an increase in deaths in areas where the trees died off. The Polyphagous Shot Hole borer from Southeast Asia is primed and ready to kill off 26.8 million trees in Southern California or about 40% of all the trees from the beach in LA to the Nevada border.