The "Kyoto Box", named after the United Nations' Kyoto Protocol won the $100,000 science prize for ideas to fight global warming.
The cost of the box is under $10 and is aimed at billions of people who use firewood to cook.
"We're saving lives and saving trees," the Kyoto Box's developer Jon Boehmer, a Norwegian based in Kenya, said.
The cost of the box is under $10 and is aimed at billions of people who use firewood to cook.
"We're saving lives and saving trees," the Kyoto Box's developer Jon Boehmer, a Norwegian based in Kenya, said.