Green investments in tourism are a new approach to developing the travel industry that emphasizes a balance between economic growth, environmental protection, and the well-being of local communities. Globally, this type of investment has become one of the main pillars of responsible tourism, focusing on renewable energy, low-carbon buildings, sustainable transportation, and smart resource management. In Iran, despite its vast natural and cultural potential, paying attention to green investments can pave the way for sustainable transformation, green employment, and the promotion of the national tourism brand, and create a link between the economy, the environment, and innovation. The Third National Conference and the First International Conference on Green Investments in Sustainable Tourism Transformation is a scientific and strategic effort towards institutionalizing new investment patterns in the field of sustainable tourism. This conference is being held in line with the previous two national sessions, which were formed since 2023, with the centerpiece of the University of Science and Culture and the cooperation of scientific, executive and private sector institutions, as a platform for the exchange of knowledge, experience and new ideas in the field of linking capital, technology and environment in tourism. Holding the international session of this event in 2026 is an important step towards improving the scientific and executive position of Iranian tourism in the field of green economy, sustainable tourism and responsible investment. This conference, with the participation of scholars, policymakers, investors and tourism industry activists from inside and outside the country, seeks to create an interdisciplinary dialogue to design new patterns of development and transformation in Iranian tourism. Given the global developments in the field of climate change, low-carbon economy and the necessity of sustainability in the tourism value chain, this conference provides a platform for green investment solutions, technological innovation, and local community participation as the axis of transformation in the future of Iranian tourism to be discussed and decided. The ultimate goal of this scientific and international event is the convergence of science, politics and the market to create a sustainable, competitive and environmental future in Iranian tourism.