The Gulf Cooperation Council (GCC) region and the wider Arab world are faced with multiple interconnected dilemmas embedded in the social, economic, and environmental pillars of sustainable development. The question of how to design effective sustainability strategies that are aligned with the context of the GCC region is a relevant one. In this special issue, contributors have investigated the obstacles to sustainable development in the GCC region, the impact of current development patterns on the sustainability agenda, and the way in which countries react to local, regional, and global sustainability pressures and debates. The issue aimed to provide a platform for academics to present policy-relevant research and practical steps being taken towards realising genuine sustainable development within the GCC region, while teasing out the major obstacles to this process. This regional focus is motivated by the shared challenge of GCC countries of reforming carbon-based economies as well as their systems of high subsidisation and universal benefits in order to incorporate sustainable concerns, merit-based rules, and more targeted policies. While these challenges are shared with other Arab countries, as well as other countries exporting oil and gas, the origins, current patterns, and future directions of sustainability reforms in the GCC region reveal interesting lessons to be learnt.The countries of the GCC (Bahrain, Kuwait, Oman, Qatar, Saudi Arabia, and the United Arab Emirates (UAE)) are home to a large supply of fossil fuels and various types of minerals, and they are rich with regard to Arabic and Islamic culture and history. The economies of the GCC countries are characterised by their heavy dependence on exports of fossil fuels. These exports have generated significant revenues that have resulted in high per-capita income levels and decent living standards. Since the 1970s, the dominant development view in the region centred on economic growth, wide job creation through public jobs for national citizens, a heavy reliance on immigrant workers, and an ecosystem for a comprehensive distribution of economic and social benefits among nationals. Owing to the significant revenues generated from oil and gas as well as the ambitious plans of the leadership within the GCC, the GCC nations have transformed into very modern states during the past few decades. Recently, the fiscal sustainability of this model has been questioned in response to increasing demands from the growing population and economies for natural resources and for financial support. It is this factor that has made the biggest contribution to the sense of urgency regarding sustainability reforms in the region.Collectively, the GCC nations have a population of more than 40 million people. The region is one of the most urbanised in the world, with around 80% of the population residing in urban areas, mostly in close proximity to coasts where important ecosystems and cultural heritage are located. Roughly 40% of the GCC region's population are people born ou...