The Ecological Footprint is a tool that measures humanity's demand on nature against the Earth's supply. It compares our consumption to the planet's biocapacity. In 2005, global footprint exceeded biocapacity, with humanity using 1.5 planets worth of resources. Canada has a footprint higher than world average but remains an "ecological creditor" with more domestic biocapacity. Ontario's 2005 per capita footprint of 8.4 global hectares is higher than Canada's average and would require 4 planets if everyone lived at that rate. Its larger footprint relates partly to consumption levels but also less efficient industries like manufacturing.