Summer Course 2022 on Environmental Sustainability for Healthier and Happier Life is aimed to improve inter professionalism in environmental health issues with their accompanying problems by interdisciplinary and multi-university approach. Inter professional education and globalization are mutually correlated and there is no barrier between each profession and country in holistic health problem management (one health approach). Healthcare professionals including doctors, dentists, pharmacists, nurses, nutritionists, and public health experts are set up to deal with complex healthcare system to prosper patients and community. This summer course outlines health sciences, integrated with social sciences and population study in health system.