Making Fuels from Air

Given that we may be passed the tipping point on global warming, it may be time to think about reversing the process. Here is a method to remove CO2 from the atmosphere. 

The process uses a large wall of fans, known as a contactor, to push air through a liquid that reacts with the CO2. That carbon dioxide-rich solution is then put through several processing steps to create a purified stream of CO2 gas and the liquid that is returned to the contactor. Keith and his team have cleverly combined industrial processes that are already in use in existing industries, for instance in paper mills.

It requires power, but with a carbon-free power source it could be used to create feedstock for our current carbon-based chemical industry from the carbon that pollutes the air.