Raw Story
Scientists from the US and Switzerland have created a prototype machine that harnesses the sun's energy to make liquid fuels from water.
"We have a big energy problem and we have to think big," Prof Sossina Haile, who led the study, told The Guardian.
The solar device uses sunlight and cerium oxide to break down water or carbon dioxide into hydrogen or carbon monoxide.
Cerium oxide, an oxide of the rare earth metal cerium, is almost as abundant as copper and when heated the chemical strips oxygen molecules from water and carbon dioxide.
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