German newspaper Die Welt visited the Made of Air offices in Berlin to talk to co-founder Daniel Schwaag about the buidling materials of the future:
"Until we have completely switched over to renewable energies, we will have emitted too much CO² to limited global warming to below 2 degrees celsius." He doesn't think everyone will realistically start riding bicycles. Instead we have to actively remove carbon dioxide from the environment. For example, by making buildings out of it. Plants split the carbon dioxide in the air into its components carbon and oxygen. From the carbon they produce sugars and cellulose and build their cells. When they die they emit the carbon again. It combines with oxygen resulting in carbon dioxide or methane.
Carbon can be saved for 1,000 years. "We can sequester the carbon, which the plant removed from the environment, for much longer," Schwaag explains - through controlled controlled carbonizing. The carbon remains sequestered for up to 1,000 years. The process also produces heat. You gain a building material and energy.
Read the full article here.
Made of Air founders Allison Dring and Daniel Schwaag were interviewed by Wired Germany on how biochar can improve the climate impact of building materials:
Allison: "Normally, rotting plants release the CO² that they have captured through photosynthesis. During the production of biochar CO² is permanently fixed in the material and therefore removed from the atmosphere for thousands of years. The problem is that there are currently far too few applications for biochar to achieve a global reduction of CO². We mix with biochar with polymers and build facades out of it."
Daniel: "Urban construction uses a lot of materials. If we could reduce the amount of CO² in the atmosphere through building, architecture would not have to justify its use of materials."
Read the whole Wired interview (in German) here.