From July 28 to August 4, the 2012 Boom Festival takes place in Geopark Naturtejo in Portugal as a way to celebrate music and art through the lens of environmental and social advocacy. This year's theme is transformation, and changing our habits to more sustainable and inclusive ones. Festival organizers take their own ecological responsibility seriously, too, with programs for sustainable water treatment, energy consumption, composting toilets and more. In addition to environmental education, Boom also offers music, art, food and flea markets.