How about a little volcano-powered barbecue? As a great display of sustainability, and as an alternative to fire, electricity and natural gas, chefs in the Canary Islands heat their meat over a geothermal stove. According to the BCC, the volcano hasn't erupted since 1824, so there is no lava involved. Instead, a basalt pit funnels the earth’s natural heat to the surface, where temperatures range between 750°F and 1,110°F.
Credit: Sylviane Moss