Most of us pass scores of trees every day and rarely give them a second thought.
But for Ontario resident Diana Beresford-Kroeger, trees are an integral part of her world.
She has made it her mission to nurture and protect them for future generations.
"I love trees," she says. "I'm what you would call a scientific tree hugger."
Click the video above to watch the story of the Tree Whisperer from the CBC's Nick Purdon.