North American tree migration paced by climate in the West, lagging in the East. - Sharma S; Andrus R; Bergeron Y; Bogdziewicz M; Bragg DC; Brockway D; Cleavitt NL; Courbaud B; Das AJ; Dietze M; Fahey TJ; Franklin JF; et al. (Proceedings of the National Academy of Sciences of the United States of America, 2022)