Support ACER! Your special donation to ACER’s new Climate Action Incentive “Donate Back” fund will help ACER continue to support science-based climate action in our communities.
ACER plants and cares for trees. Donate Today, for Climate’s Sake!
Support ACER! Your special donation to ACER’s new Climate Action Incentive “Donate Back” fund will help ACER continue to support science-based climate action in our communities.
ACER plants and cares for trees. Donate Today, for Climate’s Sake!


Today is Day 5 of Invasive Species Awareness Week (ISAW), an annual campaign in Canada led by the Invasive Species Centre and its partners. The

Jan. 13, 2026. If you love to get outdoors and enjoy the beauty of winter, our recently updated Winter Discovery Walk might pique your interest!

Ever wonder where the water in your tap comes from, or where rain goes once it hits the ground? Every drop of water belongs to

Sept. 26 2025: In honour of National Forest Week, ACER is excited to announce our latest TREEVIA quiz—Canada’s Forests and Climate Change! Test your knowledge

Sept. 24, 2025: Happy National Tree Day! This special day is a day dedicated to celebrating the beauty and benefits of Canada’s trees and forests!