Canadian luxury hotel giant Fairmont partners with World Wildlife Fund Canada to reduce its greenhouse gas emissions. We look at how Fairmont Waterfront, Chateau Lake Louise, Château Laurier, and Château Montebello implement their climate change projects in solar, hydro, wind, lighting retrofit and heat recovery, with project costs between $15,000 to half a million and payback time between 2 to 5 years. Future savings after payback could be very substantial.