Ivan A. Janssens, Dries Roobroeck, Jordi Sardans, Michael Obersteiner, Josep Peñuelas, Andreas Richter, Pete Smith, Erik Verbruggen, Sara Vicca IN: Front. Clim., 07 September 2022, Sec. Negative Emission Technologies, https://doi.org/10.3389/fclim.2022.928403
This paper elaborates on the idea to take these CDR technologies (biochar amendment, soil carbon sequestration) a step further and use them not only to drawdown CO2 from the atmosphere, but also to rebuild fertile soils (negative erosion) in areas that suffer from pervasive land degradation and have enough water available for agriculture. This way of engineering topsoil could contribute to the fight against malnutrition in areas where crop and livestock production currently is hampered by surface erosion and nutrient depletion, and thereby alleviate pressure on intact ecosystems.