Ammonium salts could provide viable way of removing carbon dioxide from atmosphere via carbon mineralization

Removing excess carbon dioxide (CO2) from the atmosphere may be essential to curb severe climate change. Possible, but expensive, methods include burying the gas underground between rock layers or 'scrubbing' the CO2 in power station cooling towers before it is released. James Highfield at A*STAR's Institute of Chemical and Engineering Sciences, together with co-workers at the National Junior College of Singapore and Åbo Akademi University in Finland, has now described a cheaper and more permanent solution that would prevent the CO2 escaping back into the atmosphere.

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