Environment Counts | Alaska warming at twice the rate of the rest of the United States :
Alaska’s annual average temperature has increased 3.4Â°F, while winters have warmed even more, by 6.3Â°F. As a result, climate change impacts are much more pronounced than in other regions of the United States. Across the southern two-thirds of Alaska, the area of closed-basin lakes (lakes without stream inputs and outputs) has decreased over the past 50 years. Permafrost temperatures have increased throughout Alaska since the late 1970s. The largest increases have been measured in the northern part of the state.
Between 1970 and 2000, the snow-free season increased by approximately 10 days across Alaska, primarily due to earlier snowmelt in the spring. Global Climate Change Impacts in the United States – 2009 Report