Balancing Act: Urban Trees and the Carbon Cycle

illustration of a landscaper in a crane, sawing a tree

Too much carbon dioxide (CO2) in the atmosphere is mostly caused by two things: burning fossil fuels and the loss of trees. Urban trees help to keep urban areas cooler, they hold soil in place, they make urban areas prettier, and they help to keep urban areas quieter. They also absorb CO2 from cars, buses, and the many engines that are used in urban areas. When people plant and maintain urban trees, they usually use machines with engines which emit CO2. When a tree is cared for using machines with engines, there is a point in the tree’s lifetime at which more CO2 will be emitted from the engines than the tree has absorbed. The scientists wanted to know which tree species can grow the longest before reaching that point.


Part Of

Urban Forest - Vol. 6 No. 1

Explore Full Journal