Arthur Lyon Dahl

Arthur Lyon DahlProfessor Arthur Lyon Dahl of Geneva, Switzerland (, has more than 50 years international experience in sustainable development and environment. He is President of the International Environment Forum (, a Baha’i-inspired organization for environment and sustainability, contributes to research on values-based education for sustainable development, advises international organizations on the Sustainable Development Goals, and is a consultant on indicators to the World Bank. He teaches sustainability in several academic programmes and was a Visiting Professor at the University of Brighton, UK. He is a retired Deputy Assistant Executive Director of the United Nations Environment Programme (UNEP), and a consultant to international organizations and research programmes on environmental assessment, observing strategies, indicators of sustainability, coral reefs, biodiversity, islands, environmental education, and social and economic development.

He holds an AB in Biological Sciences from Stanford University and a PhD in Biology from the University of California, Santa Barbara. A specialist on small islands and coral reefs, he spent many years in the South Pacific as Regional Ecological Advisor with the Pacific Community (, and organized the Pacific Regional Environment Programme ( He represented the Baha’i International Community at the Stockholm Conference on the Human Environment (1972) and the Copenhagen Climate Change Conference (COP15) in 2009, was in the Secretariat of the 1992 Rio Earth Summit to prepare Agenda 21, the global action plan for sustainable development, and organized several parallel events at the World Summit on Sustainable Development (Johannesburg, 2002), the UN Conference on Sustainable Development (Rio+20, 2012), and the Paris Climate Change Conference (2015). In 2011-2012, he was co-coordinator of the UNEP Major Groups and Stakeholders Advisory Group on International Environmental Governance ( He is also on the governing board of another Baha’i-inspired organization, ebbf – Ethical Business Building the Future ( He has published many scientific papers and books including: “Unless and Until: A Baha’i Focus on the Environment” and “The Eco Principle: Ecology and Economics in Symbiosis.”

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