Science at Burning Man

Once a year, tens of thousands of participants gather in Nevada's Black Rock Desert to create Black Rock City, dedicated to community, art, self-expression, and self-reliance. They depart one week later, having left no trace whatsoever.(
Well, Burning Man may have left no trace in Nevada, but it's on YouTube, and there's science. Here's one example, a microzoo from the Exploratorium.