4.3 Other possibilities
A further suggested method using the biosphere is to plant trees, then prevent them from decomposing by turning them into charcoal or biochar (Figure 12). This has a co-benefit of improving soil quality.
The technological equivalent uses artificial trees and other direct air capture (DAC) methods (Figure 12) to ‘scrub’ CO2 from the air with chemical methods; the CO2 can then be sequestered with CCS.
Watch the video below to learn of some other suggested methods for carbon dioxide removal.