The borderless nature of environmental problems has made diplomacy an inseparable part of this field. Issues such as climate change, biodiversity loss, ocean pollution, desertification, and pressure on water resources are far beyond the scale that a single state can address through national policies alone. This situation makes it necessary to tackle environmental problems through international negotiation, cooperation, and joint commitment mechanisms, turning environmental diplomacy into an increasingly prominent component of foreign policy. However, environmental diplomacy is not a field limited to producing technical regulations and treaty texts. This heading refers to a multidimensional field that encompasses the tension between sovereignty rights and global responsibilities, justice debates between developed and developing countries, how scientific knowledge feeds into political decision-making processes, and the roles of different actors ranging from states to civil society, from the private sector to international organizations.
The institutional foundations of environmental diplomacy were laid during the period extending from the 1972 Stockholm Conference to the 1992 Rio Earth Summit. The Rio Summit established the institutional framework of this field by producing the United Nations Framework Convention on Climate Change (UNFCCC), the Convention on Biological Diversity, and the Convention to Combat Desertification. These conventions continue to serve as fundamental reference points shaping the different sub-fields of environmental diplomacy.
The most intensive and most visible area of environmental diplomacy is climate negotiations. The Conferences of the Parties (COP), held annually under the UNFCCC framework, serve as the primary platform where approximately two hundred countries negotiate greenhouse gas reduction targets, adaptation strategies, climate finance, and carbon market rules. The 2015 Paris Agreement opened a new chapter in climate diplomacy with its inclusive structure that invited all parties to submit Nationally Determined Contributions (NDCs), adopting the goal of keeping global temperature rise below 2°C and, if possible, below 1.5°C. However, the sum of current national commitments does not align with these targets, and COP processes continue to function as a negotiation cycle that attempts to close the gap between commitment and implementation. Transformation topics such as the phase-out of fossil fuels, the transition to renewable energy, and sustainable agriculture require environmental diplomacy to move from the negotiation table to economic and societal reality.
The most critical line of tension in these negotiations lies between developed and developing countries. Debates around the principle of common but differentiated responsibilities constitute one of the most contentious subjects of the negotiations. Developing countries emphasize that the accumulation of greenhouse gases largely originates from the historical activities of industrialized economies and that developed countries should therefore assume greater responsibility in the areas of climate finance, technology transfer, and capacity building. This demand is not merely a technical matter but a diplomatic debate directly related to global justice and equity. Climate finance is one of the most prominent areas where this tension takes concrete form: whether funds are provided as grants or loans and how resources are distributed between mitigation and adaptation constitute permanent agenda items in the negotiations. The issue of loss and damage adds a new dimension to this tension; the loss and damage fund established at COP27 is regarded as the diplomatic realization of a demand that developing countries had voiced for a long time.
An important dimension of environmental diplomacy is the role of scientific knowledge in negotiation processes. The Intergovernmental Panel on Climate Change (IPCC) provides the most comprehensive assessments of climate science and forms the scientific foundation of the negotiations, while IPBES performs a similar function in the field of biodiversity. However, carrying scientific findings into diplomatic processes is not a linear undertaking. Science identifies risks and options, but which risks receive priority and which costs are deemed acceptable are ultimately determined through political choices. For this reason, environmental diplomacy operates as a field that attempts to close the distance between scientific knowledge and political will, though that distance does not always close.
Environmental diplomacy extends beyond climate change alone. In the field of biodiversity, the Kunming-Montreal Global Biodiversity Framework adopted in 2022 set the target of placing thirty percent of land and marine areas under protection by 2030. The UN Marine Biodiversity Agreement (BBNJ) established a new framework for the governance of marine areas beyond national jurisdiction. Negotiations for a globally binding agreement to combat plastic pollution also continue. Each of these sub-fields possesses its own distinct negotiation dynamics, yet the common denominator uniting them all is the reality that environmental problems cannot be managed without diplomatic cooperation.
Environmental diplomacy does not operate independently of geopolitical dynamics. The United States' two attempts to withdraw from the Paris Agreement exposed the fragility of multilateral climate diplomacy. The European Union's efforts to integrate climate policy with trade and industrial policy through the Green Deal framework, along with tools such as the Carbon Border Adjustment Mechanism (CBAM), are making the economic competition dimension of climate policy more pronounced. China's position as both the world's largest emission source and a global leader in renewable energy technologies lends a complex structure to power balances. This picture reveals that environmental diplomacy takes shape not only between environment ministries but at the intersection of economy, trade, energy, and foreign policy domains.
The actor structure of environmental diplomacy is also diversifying. Beyond the classic interstate negotiation format, civil society organizations, scientists, local governments, private sector representatives, and youth movements are assuming an increasingly visible role in these processes. The structure of COP meetings reflects this multi-actor dynamic: alongside official negotiation halls, side events, pavilions, and observer participation demonstrate that the diplomatic process does not belong solely to state representatives. The growing role of the private sector in green technology investments, carbon markets, and sustainable finance is strengthening the economic dimension of environmental diplomacy. The moral and political weight of small island states and countries most affected by climate change in the negotiations stands out as a factor that reshapes the power balance of diplomatic processes.
Türkiye is assuming an increasingly active position in environmental diplomacy. Having ratified the Paris Agreement in 2021 and announced its 2053 net-zero emission target, Türkiye is moving to the center of global climate diplomacy by hosting and presiding over COP31, to be held in Antalya in 2026. The negotiation structure shared with Australia constitutes a new cooperation model in COP history. Türkiye emphasizes its role in bridging developing countries and developed economies, aiming to adopt an inclusive approach on climate justice, just transition, and climate finance. As a country that directly experiences the regional impacts of climate change such as water scarcity, forest fires, coastal erosion, and agricultural yield pressure through its location in the Mediterranean basin, Türkiye grounds its diplomatic discourse on a concrete foundation.
Türkiye's potential in climate diplomacy can be assessed across different levels. At the macro level, a facilitating role that can manage the tension between developed and developing countries in multilateral negotiations is in question; the fact that Türkiye is both a G20 member and a country that held a distinctive status within the UNFCCC framework for many years strengthens this bridging function. At the sectoral level, particularly in the transition from fossil fuels to renewable energy, Türkiye holds the potential to serve as a bridge between fossil fuel producing countries and other nations. Türkiye's geographic position provides a strong foundation for this potential. At the micro level, the capacity to develop data harmonization, joint monitoring protocols, and technical solution proposals in concrete, technically weighted disputes such as transboundary water basins, maritime jurisdiction debates, and regional ecosystem management stands out. This three-level perspective reveals that Türkiye's potential for climate diplomacy and mediation is not merely a political matter but also a question of technical capacity.
The environment and diplomacy heading fundamentally takes shape around the following questions: How do international diplomatic processes address environmental problems and what factors determine the effectiveness of these processes? How can the distance between scientific knowledge and political will be closed? How can the principles of historical responsibility and justice find a balance point in climate negotiations? How can the gap between commitment and implementation be narrowed? This heading aims to establish a discussion ground that evaluates the diplomatic dimension of environmental issues without reducing it to a single perspective, by jointly considering the institutional framework, actor dynamics, and current tensions. Türkiye's COP31 hosting role, its experience in the Mediterranean basin, and its capacity to bridge different blocs provide a current and strong context where environmental diplomacy takes concrete form.