Why The Book of Man is Turning Green This Week Martin Robinson 7 years ago TORONTO, ON - SEPTEMBER 23: Prince Harry speaks with healthcare workers at Canada's largest mental health and addiction hospital to discuss their work in research and technology with a focus on young people at The Centre for Addiction and Mental Health ahead of the Invictus Games 2017 on September 23, 2017 in Toronto, Canada (Photo by Chris Jackson/Getty Images for the Invictus Games Foundation )