DUBAI, United Arab Emirates - When it comes to squandering the earth's natural resources, residents of this desert land of chilled swimming pools, monster 4x4s and air-conditioned malls are on a par with even the ravenous consumption of Americans, according to the World Wildlife Fund. The average person in the Emirates puts more demand on the global ecosystem than any other, giving the country the world's largest per-capita "ecological footprint," WWF data shows. The United States runs second. But the oil-rich Emirates is considered a developing country, and even as a signatory to the United Nations' Kyoto protocol on global...