After all, the roughly 40,000 attendees of the recent climate conference in Copenhagen produced more greenhouse gas emissions in just two weeks than 600,000 Ethiopians produce in a year. In fact, the world's richest 500 million people produce 50 percent of global carbon dioxide emissions compared to the 6 percent produced by the world's poorest 3 billion—Americans alone use up 88 kilograms of stuff (such as food and water but also plastics, metals and other things) per day, or roughly one me, day in and day out.

And consumerism isn't even delivering on its own promise—a better life. "Not only is consumer culture causing unprecedented environmental havoc, it is in many cases not delivering the well-being for human beings it is supposed to," argued Christopher Flavin, president of the Worldwatch Institute during a press conference last week to release its new State of the World report, "Transforming Cultures: From Consumerism to Sustainability." "The kinds of changes in policy discussed at Copenhagen are also critical and, in fact, will go hand in hand with a cultural shift [from consumerism to sustainability.]" Fist tap Arnach.