Arthur worked in the field of sustainable development for over 50 years. He worked for many years for the href="http://web.unep.org/" target="_blank"United Nations Environment Programme, and a consultant to international organizations and research programmes on environmental assessment, coral reefs, biodiversity, environmental education, and social and economic development. During the interview, we talk about his work at UNEP, his early work in his career his involvment in two Baha'i inspired organizations, the International Environment Forum and the organization Ethical Business Building the Future, and his books, href="https://www.amazon.com/Unless-Until-BahaI-Focus-Environment/dp/1870989090/ref=sr_1_1?ie=UTF8amp;qid=1487530060amp;sr=8-1amp;keywords=Unless+and+Until+Arthur+Dahl" target="_blank"Unless and Until: A Baha'i Focus on the Environment and href="https://www.amazon.com/Eco-Principle-Ecology-Economics-Symbiosis/dp/1856494349/ref=sr_1_1?ie=UTF8amp;qid=1487530169amp;sr=8-1amp;keywords=The+Eco+Principle+Arthur+Dahl" target="_blank"The Eco Principle: Ecology and Economics in Symbiosis.