The use of biochar in agriculture improves soil fertility, especially in tropical regions, and mitigates greenhouse gas emissions. A project funded by the Austrian Science Fund FWF studied the positive impact of the “fertiliser of the future” on ecosystems and nutrient cycles. In agriculture and in science, expectations for the benefits of biochar have been high in recent years. Modelled on the ancient practices of Amazonian farmers, charred biodegradable waste is used as fertiliser on…