Dr. Susanne Becken is a Principal Research Officer at Lincoln University in the field of Sustainable Tourism. Until recently she was a Research Leader with Landcare Research, New Zealand, where most of this book has been written. Susanne led a government-funded project on travel behaviour and greenhouse gas emissions from international tourists. She has also completed a range of consultancy work in the areas of energy efficiency, climate change, and relating policies. At present Susanne is the lead consultant in a UNWTO project on climate change and tourism in Fiji. She is a member of the editorial board of the Journal of Sustainable Tourism and acts as a contributing author to the 4th Assessment Report of the Intergovernmental Panel on Climate Change; she also represents Oceania/Southeast Asia on the WMO expert team on climate and tourism. Prof. John Hay has nearly forty years work experience in academia, the private sector and governmental organisations, with a focus on bringing an interdisciplinary approach to the environmental sciences, to technical and policy-relevant assessments and to professional training in environmental science, engineering, technology, law, policy and management. John has extensive international experience as a climate scientist, including acting as lead author in the latest three assessments conducted by the Intergovernmental Panel on Climate Change. Currently John works as a consultant and advisor to many national governments and regional and international organizations, including the United Nations Development Programme, the World Bank, the Asian Development Bank and the United Nations Environment Programme. John is also the lead consultant in a UNWTO project on climate change and tourism in the Maldives.