In the global political arena, authoritarian regimes increasingly leverage public diplomacy to enhance their international image and influence. This chapter explores the case of the United Arab Emirates (UAE) and its utilization of green diplomacy as a soft power strategy to bolster its global reputation. Hosting COP28 in Dubai in December 2023 marked the culmination of a strategic realignment. The UAE employed state-controlled media, diplomatic and economic incentives, and global partnerships to promote its model of a clean energy transition while advancing its geopolitical influence. Case studies include its framing of fossil fuel use, promotion of integrated clean energy systems, and marketing of experimental climate technologies. By analyzing these strategies, this chapter contributes to a broader discourse on the intersection of environmentalism, geopolitics, and public diplomacy in an era of shifting power dynamics on the world stage.