Introduction – Tribal Environmental Public Health The environment, particularly, land and water, play a powerful role in sustaining and supporting American Indian and Alaska Native communities in the United States. Not only is water essential to life and considered — by some Tribes — a sacred food in and of itself, but environmental water resources are necessary to maintain habitat for hunting and fishing. Many American Indian and Alaska Native communities incorporate locally caught traditional subsistence foods into their diets, and the loss of access to subsistence foods represents a risk factor for food security and nutrition status in indigenous populations.1 Negative health outcomes, including obesity, diabetes and cancer, have accomp...