Katherine Martinko is a sustainable living advocate who writes extensively about free- range children and low-impact living. She is a senior editor at Treehugger, an internationally respected green lifestyle site. Katherine previously wrote for Discovery Network's Parentables website and maintained a popular parenting blog. Many of the thousands of articles she has written over the years explore the importance of raising "offline" kids, teaching them to become resilient and independent, and being wary of the profound effects of too much screen time on developing brains. Katherine is an honors graduate of the University of Toronto, where she studied English literature and history. She speaks several languages, is a classically trained violinist, an award-winning public speaker, and a community leader who spearheaded a major refugee resettlement effort in her own small town. Katherine lives with her husband and three children in Port Elgin, Ontario.