Our Mission: as our climate changes, ACER supports communities with grass-roots initiatives to plant trees and educate participants in measuring, monitoring and reporting on tree health and growth.

Celebrate 35 Years of ACER in the Community –  Donate Today for Climate’s Sake!

Training Videos

Small Tree (Planting for Change) Training Videos

  1. Root Collar
  2. Height/DBH
  3. Crown Diameter

Large Tree (Go Global) Training Videos

  1. Triangulation
  2. Diameter at Breast Height (DBH)
  3. Crown Width
  4. Height (Part 1)
  5. Compass Bearing