As Chicago finally gets its share of winter weather, we welcome back ISA certified arborist M.D. Skeet (aka "Skeet") back to the show to talk about winter care for your trees and shrubs. Speaking of winter, if you're using salt products on your sidewalks and driveways, you're putting your pets and your groundwater at risk. Mitch Vestal, president of PlaySafe, explains how you can prevent ice and do it safely.