Coral reefs worldwide are facing impacts from climate change, overfishing, habitat destruction, and pollution. The cumulative effect of these impacts on global capacity of coral reefs to provide ecosystem services is unknown. Here, we evaluate global changes in extent of coral reef habitat, coral reef fishery catches and effort, Indigenous consumption of coral reef fishes, and coral-reef-associated biodiversity. Global coverage of living coral has declined by half since the 1950s.
Sea-level rise poses a significant threat to Small Island Developing States (SIDS) due to the concentration of people, assets, and infrastructure in coastal zones. This review assesses literature on key emerging topics in sea level rise including: the lasting impact of near-term mitigation on long-term sea-level rise; new global coastal vertical elevation data and their impact on existing sea-level rise projections; and the interaction of sea-level rise with other hazards, including salinization, tropical cyclones and extreme precipitation.
This viewpoint reviews key assessments from the IPCC Special Report on Global Warming of 1.5 °C and examines the implications for the Sendai Framework for Disaster Risk Reduction (SFDRR). Disaster risks are expected to be higher at 1.5 °C and continue to increase at 2 °C. Current and future disaster risk management particularly those that deal with the impacts of coastal flooding, heat-related health impacts, sea level rise, and forest fires are to be strengthened, particularly the Arctic, Caribbean, SIDS and low-lying coastal areas are particularly at risk.
This article contributes to a special issue examining SDG 14 and other international policy instruments for effective implementation of the Goal. This article focuses on island ocean states (IOS), or ‘small island developing states’ (SIDS), which are characterized by limited land and oceanic remoteness, creating local and international dependencies for food, livelihoods, trade and transport. While IOS contribute less than 1% to global green-house gases, they are directly impacted by extreme weather and climate change, in particular sea level rise.
