US in top 10 most unsustainable countries

The study, commissioned by World Wildlife Fund (WWF), measured the amount of natural resources needed to sustain a person's lifestyle, including energy, transport, food and infrastructure.

Australia ranked eighth in the study. The countries with a worse footprint than Australia are the United Arab Emirates, Qatar, Denmark, Belgium, the United States, Estonia and Canada.

"The report looks at the ecological footprint of individuals and that's measured in the report in global hectares, which is a reflection of how much food, transport and urban infrastructure we require to live our lives," WWF spokesman Dermot O'Gorma told ABC News on Thursday, adding that every Australian person requires about seven hectares to live their current lifestyle; Kazinform cites China Daily.

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