Watch It Wednesday #14

If we want to keep the Earth’s climate within a favorable equilibrium for humanity, we need to keep atmospheric carbon-dioxide (CO₂) concentrations below 350 parts-per-million (concentrations passed 420ppm this year). Even if we stopped emitting all CO₂ today, the CO₂ already in the atmosphere would continue to drive the warming of the Earth’s climate for hundreds of years.

Methods for capturing CO₂ are split into two broad categories: point source, in which CO₂ is captured at industrial sites such as fossil fuel processing facilities; and direct air capture (DAC). Of the two, DAC provides the best means to mitigate future warming. The video above provides a great overview current technologies, future CO₂ sequestration targets, and two different approaches to DAC (carbon capture & storage and carbon capture & utilization).