David Buzzard/Shutterstock Save for later Print Download Share LinkedIn Twitter Direct air capture (DAC) is one of the most exciting emerging technologies in the burgeoning carbon-removal industry. Proponents see it as a key to achieving negative global emissions since it can access and trap carbon dioxide that is already in the atmosphere, although reducing CO2 pollution and capturing emissions at the point of combustion will remain top priorities. But DAC undeniably will have a role to play in decarbonization efforts as long as the technology can be scaled up and the costs can be driven down significantly.