Earthwatch Institute's Urban Tree Project: Cambridge, MA, USA

Edited by Marie Studer, some rights reserved (CC BY-SA)

Photo Credits

  • 1. (c) Marylise Doctrinal, some rights reserved (CC BY-NC-ND)
  • 2. (c) TreesOfTheWorld.net, some rights reserved (CC BY-NC-SA)
  • 3. (c) Virens (Latin for greening), some rights reserved (CC BY-NC-ND)
  • 4. (c) Maggie, some rights reserved (CC BY-NC)
  • 5. (c) Tim Waters, some rights reserved (CC BY-NC-ND)