Comment on "The global tree restoration potential".

Joseph W Veldman Julie C Aleman Swanni T Alvarado T Michael Anderson Sally Archibald William J Bond Thomas W Boutton Nina Buchmann Elise Buisson Joseph G Canadell Michele de Sá Dechoum Milton Hugo Diaz-Toribio Giselda Durigan John J Ewel Geraldo Wilson FernandesAlessandra FidelisForrest Fleischman Stephen P Good Daniel M GriffithJulia-Maria HermannWilliam A Hoffmann Soizig Le Stradic Caroline E R Lehmann Gregory Mahy Ashish N Nerlekar Jesse B NippertReed F NossColin P Osborne Gerhard E Overbeck Catherine L Parr Juli G Pausas R Toby Pennington Michael Philip Perring Francis Edward Putz Jayashree Ratnam Mahesh Sankaran Isabel B Schmidt Christine B Schmitt Fernando A O Silveira Ann Carla Staver Nicola Stevens Christopher J Still Caroline A E StrömbergVicky M TempertonJ Morgan Varner Nicholas P Zaloumis

Published in: Science (New York, N.Y.) (2019)

Bastin et al's estimate (Reports, 5 July 2019, p. 76) that tree planting for climate change mitigation could sequester 205 gigatonnes of carbon is approximately five times too large. Their analysis inflated soil organic carbon gains, failed to safeguard against warming from trees at high latitudes and elevations, and considered afforestation of savannas, grasslands, and shrublands to be restoration.

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