This study identifies the effects and quantifies the costs of these adverse outcomes to the Pacific island economies, with details provided for selected key sectors including agriculture, fisheries, tourism, coral reefs, and human health. It then presents policy recommendations and action steps for the countries to minimize or mitigate these impacts, particularly by mainstreaming climate change in their development plans, adopting forward-looking and risk-based approaches to climate change, and climate-proofing both their programs and infrastructure so that poverty eradication and sustainable development efforts can continue regardless of the vagaries of climate.