This document discusses Tri Hita Karana Bali, which refers to three paths to harmony and happiness: between people and nature, people and people, and people and spirituality. Tri Hita Karana works to promote ecologically and economically sustainable practices in Bali through permaculture principles. It provides environmental consultation, appropriate technology projects, and workshops. Some challenges facing Bali are overpopulation, pollution, inadequate infrastructure, loss of agricultural land, and health issues from pesticides. Local solutions discussed include zero-input sustainable agriculture and Tri Hita Karana education/training programs.