The Arbor Day Foundation is the world's oldest and largest tree-planting organization. Its million members plant millions of trees every year. The Foundation began more than 120 years ago in Nebraska City, Nebraska, with the founding of Arbor Day. The Foundation is supported by donations, selling trees and merchandise, and by corporate sponsors. The Arbor Day Foundation operates the Rain Forest Rescue charity. Rain Forest Rescue has preserved nearly two billion square feet of land this way. The Foundation also encourages communities across the nation to become Tree City USAs.
