Direct Air Carbon Capture
Technologies that pull carbon dioxide directly out of ambient air will be required if humanity is to get its CO2 emissions down to zero. Direct air capture will be a useful last resort to offset CO2 emissions that are impossible, impractical or too expensive to eliminate or capture at their source.
A company at the cutting edge of carbon capture technology has outlined its vision to use Australia's vast, open spaces and abundant sunlight to power millions of modular systems that would collect millions of tons of CO2 each year.
An ambitious startup called Climeworks is looking to eat into the world's carbon emissions and has just taken its biggest bite yet, flicking the switch on the largest direct air capture and CO2 storage plant on the planet.
An ambitious Israeli startup claims it can pull carbon dioxide out of the air vastly cheaper than anyone else, using massive high-altitude balloons to take advantage of stratospheric temperatures and freeze CO2 out of the air with minimal energy.