South Sudan, officially known as the Republic of South Sudan, is a landlocked country in northeastern Africa. About 81.8 percent of the population (approximately 13.1 million people in 2025) live in rural areas and primarily depend on subsistence agriculture for their livelihoods. South Sudan has a tropical climate characterized by a rainy season followed by a dry season. Rainfall occurs mainly during a single rainy season from March to November, peaking between May and September. While the southern and eastern regions receive higher rainfall, the country experiences significant climate variability. As a result, droughts and floods frequently disrupt livelihoods, particularly in the agricultural sector (Climate Change Knowledge Portal).  

 South Sudan is highly vulnerable to climate risks, including rising temperatures, erratic rainfall, prolonged droughts, and severe flooding. Since the 1970s, average temperatures have increased by about 1–1.5°C and are projected to continue rising by 2060 (African Development Bank).  These climate pressures, combined with widespread displacement linked to ongoing conflict, have intensified food insecurity and increased the risk of localized conflicts. 

In response to these challenges, South Sudan has identified priority actions and investment areas for climate change mitigation and adaptation (USAID South Sudan Climate Vulnerability Profile). These priorities focus on reducing greenhouse gas emissions through policies in sectors such as energy, land use, and transport. The country estimates that at least 50 billion USD will be required for mitigation and adaptation efforts by 2030, although further analysis is needed to refine these estimates and support requirements.