Chicago Region Trees Initiative

CRTI is a program of The Morton Arboretum to improve the health, diversity and equitable distribution In short, trees improve our quality of life.

Chicago’s regional forest is a critical asset that needs our protection. Trees clean our air and water, reduce flooding, improve our property values, create habitat for wildlife, and provide significant social and health benefits. But our trees need our help. They face threats such as invasive plants, including buckthorn and honeysuckle; the death of ash trees due to emerald ash borer; and a lack  ...