A couple of months ago, I blogged about the environmental impact of primitive stoves across the developing world. The £75,000 FT Climate Change Challange award was announced in April and the winner is a solar cooker called the Kyoto Box.
The cooker costs $5 to make and it can be used to boil and bake using the power of the sun. The Norweigen inventor, Jon Bohmer, has also developed a more durable recycled plastic version.
It has gone into production in a Nairobi factory, which is capable of producing 2.5 million stoves a month.
Now that is progress.