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Ce rapport est l'un des principaux résultats de l'atelier régional Sea'ties Pacifique qui s'est tenu du 10 au 12 juillet 2023 à Nadi (Fidji). L'atelier a été organisé par la Plateforme Océan & Climat, le Programme régional océanien de l'environnement (PROE), et le Pacific Climate Change Pacifique (PCCC), avec le soutien financier du Fonds de coopération économique, sociale et culturelle pour le Pacifique (« Fonds Pacifique », Ministère de l’Europe et des Affaires Etrangères), du PCCC, et du PROE par le biais du programme d’assistance technique de l’Initiative Kiwa. Le rapport fournit une vue d'ensemble des défis actuels en matière d'adaptation dans la région du Pacifique, ainsi que des initiatives inspirantes pour les relever. Les conclusions de ce rapport s'appuient sur les points de vue exprimés lors d’entretiens et sur les discussions de l'atelier lui-même. Il souligne et démontre à quel point, dans une région où de nombreuses îles sont de faible altitude, où la grande majorité de la population vit au bord de l'océan et où la côte s'urbanise rapidement, l'élévation du niveau de la mer reste une question existentielle et qu'il est primordial d'accélérer les mesures d'atténuation et d'adaptation.

In Solomon Islands, the Pacific Adaptation to Climate Change (PACC) project focused on food security, with a goal ‘to contribute to reduced vulnerability and increased adaptive capacity to adverse effects of climate change in Solomon Islands’. The pilot sites for the demonstration projects were the low lying atolls of Ontong Java and, in a second phase, Sikaiana. These atolls are extremely isolated and are highly vulnerable in many respects. Climaterelated threats mainly come from sea level rise and extreme weather events, and impacts on food security include contamination of the freshwater lens affecting crop production. Associated soil salinisation, as well as loss of land through erosion, also have serious implications for subsistence food production in locations that are already stressed.

The Pacific Adaptation to Climate Change (PACC) programme is the largest climate change adaptation initiative in the Pacific region, with activities in 14 countries and territories. PACC has three main areas of activity: practical demonstrations of adaptation measures; driving the mainstreaming of climate risks into national development planning and activities; and sharing knowledge in order to build adaptive capacity. The programme focuses on three key climate-sensitive development sectors: coastal zone management, food security and food production, and water resources management. The PACC programme began in 2009 and is scheduled to end in December 2014. As the first major climate change adaptation programme in the Pacific, PACC has led the way in developing and designing adaptation projects, using a ‘learning by doing’ approach. Many lessons have been learned and better practices developed as the programme has progressed. One of these is the importance of integrating gender into climate change adaptation activities. Gender was mostly overlooked during the initial stages of the programme, but significant efforts have since been made to address this shortcoming and integrate gender across programme activities. This report summarises two key documents produced by PACC as part of the drive to address gender. The first, a Gender Assessment of the programme, was carried out in 2012 to assess the level and degree that the programme addressed gender. The Gender Action Plan, which covers 2013–2014, was developed soon afterwards to address the recommendations arising from the Assessment. Activities in the Plan are currently underway, and will be reported in further PACC publications.

Climate change is already affecting development in the Pacific. Rising sea level and changing rainfall patterns are challenging infrastructure, water supply, agriculture, fisheries and natural ecosystems. Extreme weather events such as floods, droughts and cyclones are having significant impacts from the household level up to the level of national economies. They are causing great hardship for individuals and communities on many islands, threatening livelihoods, traditional cultures and natural resources. These impacts could worsen in the coming decades as climate change accelerates.

PACC project reports

For Pacific SIDS, the need for adaptation to climate change has become increasingly urgent. Long-term climate changes, including the increasing frequency and severity of extreme events such as high rainfall, droughts, tropical cyclones, and storm surges are affecting the lives and livelihoods of people in PICs. Coupled with non-climate drivers, such as inappropriate land use, overexploitation of resources, increasing urbanization and population increase, development in the region is increasingly undermined. For the low lying atolls, the likely economic disruption from climate change pressures could be catastrophic, even to the extent of requiring population relocation to other islands or adding numbers to the Pacific diaspora, with the subsequent social and cultural disruption having unknown proportions. Failure to reduce vulnerability could also result in loss of opportunities to manage risks in the future when the impacts may be greater and time to consider options limited.

The likelihood (i.e., probability) components of climate-related risks in the Cook Islands are evaluated, for both present-day and future conditions. Changes into the future reflect the influence of global warming. The risk events for which current and future likelihoods are evaluated are extreme rainfall events (both hourly and daily), drought, high sea levels, strong winds, and extreme high air temperatures. Tropical cyclone frequencies over the past century are also examined. Some climate-related human health and infrastructure risks are also investigated.

Reports of the PACC project