Kraus: Three lessons about nature – courtesy of your Christmas tree

People living in the northern hemisphere have brought trees and boughs into their homes during the winter for thousands of years. The evergreens that we decorate with during Christmas can represent a celebration of holidays and a reminder that spring will come again.
I’m a Christmas tree traditionalist, and will never give up the ancient ritual of bringing a fresh tree into our home. Each year, Canada’s 1,872 Christmas tree farms produce more than three million pine, spruce and fir t