Seeing the forest and the trees

Throughout much of human history, changes to forest ecosystems have come about through natural climatic changes occurring over long periods of time. But scientists now find changes in forest cover dramatically accelerated by such human activities as large-scale agriculture, the building of dams and roads, and the growth of cities with vast areas of asphalt. Changes that once took centuries now take only decades. Seeing the Forest and the Trees examines changes in land cover and land use in forested regions as major contributors to global environmental change. It investigates why some forested areas thrive even in the presence of high human densities and activity while others decline and disappear.