The Knowledge Hub

Small Island Developing States are among the least responsible for climate change – yet, they stand to suffer the most in terms of negative impacts. Despite contributing less than one percent of greenhouse gas emissions, small island developing states are highly vulnerable to tropical cyclones, hurricanes, storm surges, and droughts. From 1970 to 2020, these states lost US$153 billion due to weather, climate, and water-related hazards.

This report explores nature-based solutions (NBS) for beach stabilization within the Blue Economy framework, emphasizing sustainable ocean resource use for economic growth and ecosystem health. Coastal tourism, vital to developing regions and SIDS, benefits from these strategies. Targeting governments and tourism stakeholders, the report offers practical approaches to combat beach erosion, stressing that direct interventions should follow evaluation of non-intervention options. It educates the tourism sector on how NBS can enhance climate resilience and tourism outcomes, detailing erosion processes and methods with added social, environmental, and economic benefits for vulnerable communities with limited resources.

This report provides an overview of the potential role that nature-based solutions (NBS) can play in ports. It aims to illustrate how NBS can be effectively integrated into port planning, design, and operations to address various port challenges, while offering opportunities to leverage climate resilience benefits and other cobenefits. The report outlines the types of NBS that could be most applicable to ports, examines their alignment with global policy frameworks (such as the Sustainable Development Goals and the Paris Agreement), and highlights both the opportunities and implementation challenges associated with their use. NBS are receiving attention globally and in various sectors, with several NBS approaches demonstrating technical feasibility and cost-effectiveness.

This report provides a cost-benefit analysis of a Government of Indonesia plan to use nature based solutions to restore or enhance the protection of 600,000 ha of mangroves by 2025.

This document is divided into two sections. The first section explores technical aspects related to sediment transport and coastal erosion, including the context in Colombia, economic aspects, and the integration of gender equality and social inclusion for better governance. The methodological section outlines a detailed and adaptive process for addressing coastal erosion through a project lifecycle approach, with annexes providing additional detailed information.