clipped from: russiatoday.com   

Bacteria eat CO2 to store energy


A bacterium that can use electric current to convert carbon dioxide into natural gas may make renewable energy more reliable.



An elegant and promising solution comes from a team of researchers at Pennsylvania State University, reports the Science magazine. They suggest feeding extra electricity to bacteria, which can use it to convert carbon dioxide into methane.


Methane may later be burnt just like fossil natural gas to take back the stored energy. If the CO2 used in the process is taken from power stations or directly from the atmosphere, it will be carbon neutral and not contribute to climate change.