Solar-powered cooker wins climate prize
A solar-powered cooker made from cardboard box has scooped a $75,000 prize for inventions that could tackle climate change.Solar cookers are not new but what makes the Kyoto Box exciting is its simplicity and low cost - each can be made for 5 Euros - which means it could be used by millions in the developing world.
It has won the FT Climate Change Challenge, a global contest organised by Forum for the Future.
The cooker concentrates the heat of the sun into a small oven hot enough to boil water and has a number of environmental benefits.
As well as removing the need for firewood and the related deforestation and carbon emissions, its manufacturers say it can also save lives by allowing families without access to clean water to boil their water supply.
"We're saving lives and saving trees," says Kenya-based entrepreneur Jon Bøhmer who produces the cooker.
"I doubt if there is any other technology that can make so much impact for so little money."
The other shortlisted inventions were:
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