Mature trees sequester substantial amounts of carbon, something that saplings cannot accomplish for decades. The loss of even a single tree impacts air quality, heat levels, and storm water drainage. So every loss of a mature tree contributes to the climate crisis and impacts public health. Neighborhoods and towns with less wealth and more people of color have fewer trees and are at greater risk for health and climate emergencies, making the loss of mature trees also an environmental justice issue. This online forum on Thursday, April 21 at 7 pm EDT will make the case that trees are a public good and discuss steps that local organizations and communities can take to protect our tree canopies.