The forests in the Coweeta Basin reflect the disturbance history of the region, which in addition to climate change has experienced early 20th century logging, drought, hurricanes, and
insect and disease
outbreaks, these last
including the extirpation of the American chestnut, once the most important species in southern Appalachian forests.
Because of its cold - adapted features and rapid warming, climate change impacts on Alaska are already pronounced,
including earlier spring snowmelt, reduced sea ice, widespread glacier retreat, warmer permafrost, drier landscapes, and more extensive
insect outbreaks and wildfire, as described below.