Forests are vital economic and cultural resources for many American Indian and Alaska Native tribes in the United States. Of the 18 million acres of tribal forest lands held in trust, 5.7 million acres are designated for commercial forestry. Climate change has the potential to both compromise the health of forests across the country, and paradoxically, increase their productivity. For tribes whose culture, traditions, and ways of life may be heavily dependent on forest resources it is important to build an understanding of how climate change may impact forests and other ecosystems.