PASCAL GOETGHELUCK / SCIENCE PHOTO LIBRARY PASCAL GOETGHELUCK / SCIENCE PHOTO LIBRARY
Algal biorector research. Bioreactor using algae (green) to produce hydrogen gas for use as a fuel. The light source fuels the growth of the algae. Burning hydrogen produces water vapour, and is a cleaner source of energy than burning fossil fuels like coal, gas and oil. Photographed in 2003, at the University of Nantes, France.
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