Supplementary Information S2 Mitigating hidden climate change impacts of timber cities critically depends on proactive forest and waste management Alperen Yayla 1,a; Augustin Danneaux 1,2,b; Estelle Schurer 1,3,c; Meng Gao 1,d; Cagatay Demirci 4,e; Colin Rose 5,f; Stijn van Ewijk 5,g; Rupert J. Myers 1,h,* 1 Department of Civil and Environmental Engineering, Imperial College London, Skempton Building, South Kensington Campus, London, SW7 2AZ, UK. 2 CIRED, Ecole des Ponts, AgroParisTech, EHESS, CIRAD, CNRS, Université Paris-Saclay, Nogent-sur-Marne, France. 3 Gensler Europe, Thomas More Square, London, E1W 1YW, UK. 4 B&K Hybrid Solutions, Haslams Lane, Alfreton Road, Derby, DE21 4TS. 5 Department of Civil, Environmental & Geomatic Engineering, University College London, London, WC1E 6BT, United Kingdom * Correspondence: r.myers@imperial.ac.uk a a.yayla22@imperial.ac.uk, b augustin.danneaux@enpc.fr, c e.schurer@hotmail.co.uk, d m.gao20@imperial.ac.uk, e c.demirci14@alumni.imperial.ac.uk, f colin.rose@ucl.ac.uk, g s.vanewijk@ucl.ac.uk, h r.myers@imperial.ac.uk