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Low-lying reef islands in the Solomon Islands provide a valuable window into the future impacts of global sea-level rise. Sea-level rise has been predicted to cause widespread erosion and inundation of low-lying atolls in the central Pacific. However, the limited research on reef islands in the western Pacific indicates the majority of shoreline changes and inundation to date result from extreme events, seawalls and inappropriate development rather than sea-level rise alone. Here, we present the first analysis of coastal dynamics from a sea-level rise hotspot in the Solomon Islands. Using time series aerial and satellite imagery from 1947 to 2014 of 33 islands, along with historical insight from local knowledge, we have identified five vegetated reef islands that have vanished over this time period and a further six islands experiencing severe shoreline recession. Shoreline recession at two sites has destroyed villages that have existed since at least 1935, leading to community relocations. Rates of shoreline recession are substantially higher in areas exposed to high wave energy, indicating a synergistic interaction between sea-level rise and waves. Understanding these local factors that increase the susceptibility of islands to coastal erosion is critical to guide adaptation responses for these remote Pacific communities.

This document is a step-by-step guide to facilitating a one-day workshop on understanding climate change science and is targeted at audiences in the Pacific island region and Timor-Leste. The training module provides PowerPoint presentations with facilitator notes and explains participatory exercises aimed at enhancing capacity in understanding climate change science.

Pacific Climate Futures Version 2.0 is a web-based climate impacts decision-support tool available for free.

Tropical cyclones (TCs) affect many Pacific Island countries and their impacts can be sever in vulnerable island communities. An understanding of how tropical cyclones may change under future climates, including changes in windspeeds and associated rainfall, is essential for managing future climate risks and saving lives.

PACC reports

Reports from the PACC project