Abstract
The concept of global governance gained importance after it was recognized that individual states were ineffective at finding solutions to transnational problems because of growing global interdependence and rapid technological developments. Environmental degradation and climate change are among the transnational issues that necessitate an effective global governance system. International cooperation and increasing the share of renewable energy in global energy consumption by the help of an effective global governance system is essential to prevent environmental degradation and climate change. International initiatives and organizations make valuable contributions to advance the share of renewable energy sources in global energy consumption. Nonetheless; legitimacy, efficiency and effectiveness of these organizations and initiatives should be enhanced. In this connection, role of the G-20 is critical. The G-20 may become a platform to enhance legitimacy, efficiency and effectiveness of the global governance system. Important steps such as initiating the G-20 summit process were taken but further steps such as increasing voices of emerging countries in the governance structures of key international organizations should be taken.
