320,000 coffee to go cups are used every hour in Germany (according to Deutsche Umwelthilfe DUH), this are 3 Billions cups per year. A giant garbage dump. According to DUH, the disposable cups are also predominantly made of paper fibers, for which new material and no recycled paper are usually used. Moreover, because the cups are not only made of paper but also of plastic, the coffee to go cups are difficult to recycle. The start-up company Carbogenics (UK), which grew out of a research project at the University of Edinburgh, has come up with an idea on how to use pyrolysis (carbonization process / charring) to recycle these cups into biochar. The biochar can then be used again in agriculture as a soil conditioner or to improve the biogas process. This is more than an ecofriendly recycling solution for paper cups: During charring, a large part of the carbon contained in the biochar is stably stored. If the biochar of paper cups is applied into the soil, the carbon is extracted from the atmosphere for centuries (active CO2 reduction).