Explore the roles of the selected energy related international organizations/processes to enhance secure, affordable and sustainable energy supply. The examples of these organs/processes are IEA, OPEC, IEF, Energy Charter, G7, G20, EU, APEC, ASEAN, IAEA IRENA, UNFCCC etc. Discuss the selected energy issues from different perspectives. Try to identify necessary conditions for global energy governance in the 21st Century to address energy and climate challenges