The last woman on Earth. Filmed inside Biosphere 2 in Arizona, Urth forms a cinematic meditation on ambitious experiments, constructed environments, and visions of the future. Writer Mark von Schlegell contributes a text-read as the final log instalments of a woman sealed inside an unforgiving environment. The film considers what an endeavor such as Biosphere 2 might mean today and in the near future, in terms of human kind’s relationship with the natural world.