Comment on “The global tree restoration potential” - Veldman, Joseph W.; Aleman, Julie C.; Alvarado, Swanni T.; Michael Anderson, T.; Archibald, Sally; Bond, William J.; Boutton, Thomas W.; Buchmann, Nina; Buisson, Elise; Canadell, Josep G.; De Sá Dechoum, Michele; Diaz-Toribio, Milton H.; et al. (American Association for the Advancement of Science (AAAS), 2019)