Ontario's Greenbelt, situated in the Greater Golden Horseshoe region of Southern Ontario, is the largest greenbelt in the world and protects 1.8 million acres of prime agricultural land and some of the most bio-diverse ecosytems in North America. The Greenbelt's natural capital delivers some $2.6 billion worth of ecological benefits to Ontario residents each year providing clean air and safe drinking water to the residents in this region and enhancing biodiversity.