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Burning Man is held in harsh conditions, and also aims to have zero impact on the local environment (though there is of course the impact of many people driving there - so share transport if you can!)
See Category:Burning Man for pages specifically related to Burning Man.
See Burning Man Cabal if you're interested in joining an Appropedia-themed group (which needs a better name) for Burning Man 2008.
Photos of the very creative living structures and a description of some of the issues involved in surviving the Burning Man festival are described in the thesis "Building with the desert: place conscious architecture at Burning Man" by David Magarian.