Dr Ioannis PAPPAS, CEO & Co-Founder of GREEN EVOLUTION SA, is Director for Mediterranean Region of the Global Sustainable Tourism Council (GSTC). He is a Mechanical Engineer, with PhD in Applied Mechanics, with over 30 years’ experience in several fields of science, focusing on Sustainability for Tourism, Energy and Environmental Efficiency in Infrastructure and Buildings, Advising in standardization of companies and technological implementation of climate adaptation and mitigation methodologies. He is Lead GSTC Assessor for Destinations, Auditor / Assessor for Sustainable Tourism Certification Standards, focusing on Hotels, Tour Operators and Destinations, Lead Trainer and Assessor for GSTC in Southeast Europe Region. Dr Pappas is the head expert of GSTC team on the Collaboration Contracts between GSTC & Ministries of Tourism on the implementation of Sustainability into new National Tourism Strategies, head trainer in several seminars and webinars, and head assessor in destinations assessments. He is participating in several groups of experts and peer committees on the Sustainable Tourism and Green Transition, while he is an experience trainer on Sustainability, Energy, Buildings and Tourism in Private and Public Universities around the globe. In addition, Dr Pappas is participated as Senior Researcher in a large number of National and EU-Funded Projects on Sustainability.