Why Trees

Our trees do more than just look beautiful.

Clean Air
Trees remove carbon dioxide from the air and produce oxygen. Trees also intercept airborne pollutants common to cities.

Absorb Stormwater
Trees absorb stormwater runoff, reducing erosion and pollution in our waterways. A healthy tree canopy means cleaner rivers and less investment in costly infrastructure.

Save Energy
Trees provide shade, saving District residents and businesses a cool $3.5 million annually in energy costs.

Mitigate Climate Change
It is estimated that the city’s trees sequester approximately 19,000 tons of carbon each year in the District. That’s the equivalent of removing the exhaust from 3,700 cars.

Create Healthier Communities
Green spaces help residents combat stress, anxiety, and depression. Exposure to trees and nature aids concentration by reducing mental fatigue. Access to nature is also associated with fewer sick days and faster recovery times.

Calm Traffic
Tree-lined streets have a traffic calming effect, which keeps drivers and pedestrians safe.

Build Better Business
Trees attract businesses and tourists. People linger and shop longer at businesses that are surrounded by trees.

Support Wildlife
Trees provide food, homes, and shelter for many native and migratory animals.

Trees clean the air we breathe, manage stormwater, keep us cool, reduce our stress levels and so much more. At Casey Trees we offer year-round opportunities to volunteer and ensure a healthy urban forest for generations to come. Sign up to get updates below and join us!

Tree Report Card 2018


i-Tree Ecosystem Analysis


Advocacy Works: Climate Ready DC