Comment on "The global tree restoration potential". - Veldman JW; Aleman JC; Alvarado ST; Anderson TM; Archibald S; Bond WJ; Boutton TW; Buchmann N; Buisson E; Canadell JG; Dechoum MS; Diaz-Toribio MH; et al. (Science (New York, N.Y.), 2019)