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Is the climate change mitigation effect of enhanced silicate weathering governed by biological processes?

Sara Vicca, Daniel S. Goll, Mathilde Hagens, Jens Hartmann, Ivan A. Janssens, Anna Neubeck, Josep Peñuelas, Sílvia Poblador,Jet Rijnders, Jordi Sardans, Eric Struyf,Philipp Swoboda, Jan Willem van Groenigen, Arthur Vienne, Erik Verbruggen Abstract A number of negative emission technologies (NETs) have been proposed to actively remove CO2 from the atmosphere, with enhanced silicate weathering (ESW) as a relatively new NET with considerable climate change mitigation potential. Models calibrated to ESW rates in lab experiments estimate the global potential for inorganic carbon sequestration by ESW at about 0.5–5 Gt CO2 year−1, suggesting ESW ...