“…Large-scale carbon removal, also referred to as negative emissions, has recently gained attention as a key component of climate change mitigation pathways that limit warming to 1.5 or 2 C (IPCC, 2014(IPCC, , 2018. First put forward in technoeconomically focused integrated assessment models (IAMs) (Azar, Lindgren, Larson, & Möllersten, 2006;Kriegler et al, 2014;Kriegler, Edenhofer, Reuster, Luderer, & Klein, 2013;Van Vuuren et al, 2007), there is now an extensive literature that explores the potential opportunities, risks and trade-offs of relying on negative emissions (Buck, 2016;Dooley, Christoff, & Nicholas, 2018;Fuss et al, 2018;Gough et al, 2018;Heck, Gerten, Lucht, & Popp, 2018;McLaren, 2020;Williamson, 2016), maps the various feasibility concerns involved (Forster, Vaughan, Gough, Lorenzoni, & Chilvers, 2020;Hansson et al, 2019;Vaughan & Gough, 2016;Waller et al, 2020), or seeks to understand how IAMs came to rely so heavily on negative emissions in the first place (S. Beck & Mahony, 2017, 2018bGeden, 2016;Workman, Dooley, Lomax, Maltby, & Darch, 2020). Private sector actors have started taking an interest (Carbon Engineering, 2019;Shell, 2019;B.…”