The Living Planet Report 2008 is a bi-annual study that measures the ecological footprint of human demand on natural resources and assesses the Earth's ability to remain a "living planet". The report is a joint effort by the World Wildlife Fund (WWF), the Zoological Society, and the Global Footprint Network.

"If our demands on the planet continue to increase at the same rate, by the mid-2030s we would need the equivalent of two planets to maintain our lifestyles," said WWF International Director-General James Leape.

USA and China have the largest national footprints, together accounting for about 40 percent of the global footprint. The water footprint is a new addition to the report, which examines the hidden economic cost of water consumption. Canada has the 12th largest water footprint with the average Canadian consuming more than two million liters of water annually.