“A widely publicized study published last year by researchers at the University of Northern Arizona analyzed satellite images taken between 1985 and 2019. They show that large parts of the #BorealForest have “browned” (i.e., died) in the south and greened with trees and shrubs in the north. If this shift, long hypothesized as a future outcome of #warming, is already underway, the effects will be profound, transforming natural habitats, animal migration and human settlements.”