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Ensuring that harvest strategies are robust to climate change is a top priority for many fisheries jurisdictions globally. This is because climate change is altering ecosystem structure and the productivity of marine species. We outline a range of approaches for incorporating climate change impacts within harvest strategies, including how a harvest strategy is specified and changes to monitoring requirements. Approaches evaluated include the use of extended stock assessments, multi-species and ecosystem models, revised management reference points, implementing regime shifts in model parameters, the provision of climate-sensitive catch advice, projections under alternative climate change scenarios and expanded use of management strategy evaluation. We evaluate the utility of these approaches against cost, data needs and uncertainty criteria; highlight key learnings from a range of global jurisdictions and demonstrate the broad array of options available outside of direct incorporation of climate variables within stock assessments. We identify approaches that have been successfully implemented and show that the most complex responses are not always the most successful. While there is no one-size-fits-all way to incorporate climate change within harvest strategies, we outline the need for flexible management arrangements. We also provide examples of approaches that have been successfully implemented, demonstrating that many of the most data-intensive responses will only be applicable in a few cases, necessitating the application of cheaper, less data-intensive approaches that are associated with greater uncertainty.

Director of the Mitigation and Adaptation, Green Climate Fund, Dr German (Jerry) Velasquez statement of support for PRISMSS work to manage invasive species in the Pacific region

Pacific regionalism has long attracted both hope and despair. The hope is that regional organisations can overcome the challenges of small island developing states (SIDS)

Observational records and climate projections provide abundant evidence that freshwater resources are vulnerable and have the potential to be strongly impacted by climate change, with wide-ranging consequences for human societies and ecosystems. Observed warming over several decades has been linked to changes in the large-scale hydrological cycle such as: increasing atmospheric water vapour content; changing precipitation patterns, intensity and extremes; reduced snow cover and widespread melting of ice; and changes in soil moisture and runoff. Precipitation changes show substantial spatial and inter-decadal variability. Over the 20th century, precipitation has mostly increased over land in high northern latitudes, while decreases have dominated from 10°S to 30°N since the 1970s. The frequency of heavy precipitation events (or proportion of total rainfall from heavy falls) has increased over most areas (likely). Globally, the area of land classified as very dry has more than doubled since the 1970s (likely). There have been significant decreases in water storage in mountain glaciers and Northern Hemisphere snow cover. Shifts in the amplitude and timing of runoff in glacier- and snowmelt-fed rivers, and in ice-related phenomena in rivers and lakes, have been observed (high confidence).

This United Nations-backed report, hosted by the Pacific Regional Environment Programme (SPREP) in collaboration with Australia’s environmental authorities, highlights critical insights from a comprehensive assessment of Fiji’s marine environment. Key findings include: Urgent need for environmental awareness: Enhanced public understanding is essential to safeguard Fiji’s rich marine resources from threats like marine pollution, coastal habitat destruction, and climate change impacts. Marine pollution pressure: Coastal waters are increasingly burdened by land-based pollutants—plastics, sewage, industrial runoff—and remnant debris from historical events (e.g., WWII wrecks), with contamination affecting marine ecosystems. Habitat degradation: Seagrasses, coral reefs, and mangrove ecosystems face degradation stemming from coastal development, deforestation, sedimentation, and unsustainable use. Climate change and invasive species: Rising sea levels and temperature increase stress marine ecosystems. Invasive species further destabilize native biodiversity and fish stocks. Policy and capacity gaps: Although Fiji is party to major environmental agreements, enforcement and systematic marine monitoring remain inadequate. Collaborative solutions: The report calls for strengthened coordination among UN agencies, SPREP, Fiji’s government, and Australian partners. Recommendations include expanding coastal climate-change observation, improving environmental education, enhancing marine pollution legislation, and bolstering community-based conservation efforts. Together, these insights emphasize that raising environmental awareness and fostering regional cooperation—especially with Australia—are vital to protecting Fiji's marine environment and achieving sustainable development goals.