The Ecological Footprint is a tool that assesses the demand for natural resources and provides information on whether our collective consumption levels are approaching or exceeding the Earth’s ecological limits. It can be directly compared to biocapacity, a metric that accounts for available resource supply of specific products (food, fibre, timber and carbon storage) that are provided by ecosystems. The Ecological Footprint and biocapacity provide a partial ecological balance sheet for the world. This report calculates humanity’s and Canada’s Ecological Footprint, as well as the Ecological Footprint and biocapacity of Ontario.