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Billions of tons of carbon dioxide could be captured by rocks and a natural chemical reaction that humans can speed up.

2009-02-03

 greenhouse gas rock chemistry climate change carbon dioxide
Fuel cells - a technology that has been around for more than 100 years - convert fuels such as hydrogen and natural gas into electricity through an electrochemical reaction. The resultant heat generated also warms buildings in gas-boiler-sized boxes known as cogeneration fuel cells.

2010-03-12

 fuel cell electricity carbon dioxide
Nuclear decay-driven machines could gather gases from the atmosphere of Mars, giving future robotic missions leaps of a kilometre, researchers say. A design concept in Proceedings of the Royal Society A outlines an approach to compress CO2 and liquefy it. The liquid would then be heated much as in a standard rocket, expanding violently into a gas to propel exploratory craft great distances.

2010-11-17

 carbon dioxide Mars probe lander robot transport nuclear energy fuel
Irish mathematicians may have solved the mystery of why bubbles in stout beers such as Guinness sink: it may simply be down to the glass. Simulations suggest an upward flow at the glass's centre and a downward flow at its edges in which the liquid carried the bubbles down with it. But the reasons behind this flow pattern remained a mystery...

2012-05-29

 beer glass bubble carbon dioxide nitrogen flow