Burning out on Burning Man

The Sierra Club questions Burning Man:

"For years 'burners' have been trying to draw lines of ethical behavior in the desert sand. As last summer's Crude Awakening performance broiled the night sky with petrochemical flames, some confronted a question whose relevance resonates far beyond the annual encampment: With life on Earth now clearly at risk, how much waste, pollution, and hypocrisy can we humans justify in our pursuit of art, education, freedom, and--yes--fun?"