As part of its 50 Million Tree Pledge, Enterprise Holdings Foundation will fund the planting of 1 million trees this year. Funds are donated to the Arbor Day Foundation to plant the trees throughout the U.S., Canada and Europe, says the company.

The Enterprise Holdings Foundation established the 50 Million Tree Pledge in 2006 to thank customers for their support throughout the company’s first 50 years. The pledge is part of a public-private partnership with Enterprise, the Arbor Day Foundation and the U.S. Forest Service, says the company.

“When we began our long-term commitment to support reforestation, we wanted to ensure we invested in projects that would have a lasting impact in the communities we serve,” said Lee Broughton, head of sustainability for Enterprise. “As many states are currently facing severe drought and other urgent reforestation needs, several of this year’s projects were selected to help restore forests that provide critical watershed protection to areas in need of clean water.”

By the end of 2014, Enterprise will have helped plant 9 million trees in areas with immediate reforestation needs, says the company.

Currently, the program has planted more than 8 million trees in forests across Alabama, California, Colorado, Idaho, Michigan, Minnesota, Montana, Oregon, South Carolina, South Dakota, Texas, Wyoming, Canada, Germany, the U.K. and Scotland.