Kyoto Box is a cheap, solar-powered cardboard cooker for use in rural Africa, estimated to prevent two tonnes of carbon dioxide emissions per family per year.

Think humankind discovering fire was revolutionary? How about a cardboard box that uses the sun's rays to cook without burning firewood? That's precisely what the Kyoto Box, a cardboard solar ...

This performance compares well with current trends in solar cooking technologies. Design features also include making it easy for one person to operate and simple to assemble.