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The IAI Directorate Science reports on the final phase of the third Collaborative Research Network (CRN3), the launch of the Small Grant Program on ecosystem services and human wellbeing (SGP-HW), and the planning for the fourth Collaborative Research Network (CRN4). Key initiatives include a co-design process for climate adaptation in the megacities of Buenos Aires, São Paulo, and Santiago de Chile, and a collaborative research framework with Argentina's CONICET. The Directorate is shifting toward a co-funding model to diversify science funding and is emphasizing transdisciplinary research aligned with international frameworks like the SDGs.

The policy brief advocates for the adoption of ecosystem-based adaptation (EbA) to enhance climate resilience in coastal and island regions. It highlights the protective value of mangroves and coral reefs, notes their current underrepresentation in national climate strategies, and suggests using the 2020 NDC revision cycle to mainstream these nature-based solutions. The author emphasizes the need for quantitative data to build a business case for private investment and highlights innovative financing models like debt-for-nature swaps.

The Tonga Green Climate Fund Country Programme identifies 29 priority initiatives—comprising 12 adaptation, 4 mitigation, 9 cross-cutting projects, 3 readiness support initiatives, and 1 project preparation grant—with a total estimated cost of USD $486.33 million. The programme focuses on critical vulnerabilities including sea-level rise, tropical cyclones, and drought, aligning with the Tonga Strategic Development Framework 2015-2025 and the Second Joint National Action Plan on Climate Change and Disaster Risk Management (JNAP 2). Key priorities include renewable energy expansion, coastal resilience, climate-smart agriculture, and the climate-proofing of urban infrastructure in Nuku’alofa.

The report identifies significant knowledge gaps hindering the achievement of the 2030 Agenda and argues that research must play four roles: characterizing challenges, providing solutions, coordinating dialogue, and critically analyzing the goals. Using SDGs 12, 14, and 17 as examples, it highlights the need for more applied 'action research' and a deeper understanding of goal interactions and international spill-over effects. The authors propose a tiered approach to structural reform, ranging from incremental improvements in open data and communication to transformative changes such as funding research led by third countries and reorienting the innovation system away from incremental economic growth toward social and climate justice.

The Book of Abstracts compiles nearly seventy research proposals focused on the sustainable harnessing of the Blue Economy. The submissions are organized into four primary thematic areas: sustainable use of resources, climate action resilience, global connectivity and transportation, and blue economy and sustainable cities, with an additional focus on human resource capacity. The abstracts cover a diverse range of topics, including marine spatial planning, aquaculture development in Africa and Asia, the economic impacts of ocean acidification, and the role of scientific research in informing policy and investment. Geographically, the research spans global contexts with specific case studies from Kenya, Canada, Ireland, Bangladesh, Israel, China, and various Small Island Developing States (SIDS).

The Living Planet Report 2018 documents a severe global decline in biodiversity, highlighted by a 60% drop in vertebrate populations since 1970. It identifies overexploitation and agriculture, driven by runaway human consumption, as the primary threats. The report emphasizes that nature provides essential services worth approximately US$125 trillion annually and calls for an ambitious international agreement to 'bend the curve' of biodiversity loss through a roadmap of clear goals, measurable indicators, and transformative actions.

The document provides scientific justification for the permanent protection of the Northeast Canyons and Seamounts Marine National Monument (NECSMNM). It highlights the area's extreme habitat diversity, its role as a biodiversity hotspot for deep-sea corals, marine mammals, and mesopelagic fish, and its importance as a carbon sequestration site. The authors argue that the current boundaries are the smallest area necessary to protect these 'objects of scientific interest' and serve as a critical reference site for studying climate change and human impacts in the Atlantic.

The document examines the efforts of the UN General Assembly and the Preparatory Committee (Prepcom) to create a legally binding instrument under UNCLOS for the conservation and sustainable use of marine biological diversity in areas beyond national jurisdiction (ABNJ). It highlights significant divergences between developed and developing states regarding access and benefit-sharing (ABS) of marine genetic resources, the application of the 'common heritage of mankind' principle, and the design of institutional structures. While Prepcom 4 produced an outcome document identifying areas of convergence and divergence, the brief emphasizes the need for a focus on non-monetary benefits—such as capacity building and technology transfer—to address the technical and economic disparities between nations without disincentivizing marine scientific research.

The document asserts that existing international laws and policies are based on the flawed assumption that displaced persons can return home, which is often impossible for those affected by climate change. It highlights that climate-induced migration is a complex phenomenon—ranging from sudden disasters to slow-onset events like sea-level rise—that defies current legal definitions. Consequently, the authors argue that the G20 must lead efforts to reform governance to better protect the rights and obligations of people and governments in countries of origin, transit, and destination.

The document examines the prevalence and impact of illegal blast fishing in Tanzania, noting it is the only African country where the practice occurs on a large scale. It details the ecological destruction of coral reefs, the link between blast fishing and organised crime, and the failures of current legal enforcement. The author proposes a comprehensive strategy involving community co-management, stricter judicial penalties, and the integration of reef conservation into national development and climate adaptation plans.

The paper examines interactions between six specific SDGs (1, 2, 3, 5, 9, and 14) using a seven-point scale to categorize relationships as reinforcing, enabling, or constraining. It finds that positive interactions generally outweigh negative ones, particularly for gender equality, which acts as a lever for multiple other goals. However, it highlights significant institutional barriers to integrated implementation, as most governments operate through sectoral ministries that lack joint agendas. The author argues for the creation of an international open knowledge platform to systematize SDG interaction analysis and suggests that 'mission-oriented innovation' and strategic foresight mechanisms can help overcome short-termism in infrastructure and industrial policy.

The document outlines twelve key signs of climate change, including rising global, ocean, and soil temperatures, increasing ocean acidity, and rising sea levels. It attributes these phenomena to the buildup of heat-trapping gases caused by the burning of fossil fuels and the destruction of tropical forests. The text highlights specific regional impacts, such as the rapid warming of the Gulf of Maine and the thawing of permafrost in the Arctic, and notes the resulting increase in extreme weather events and shifts in species ranges.

The report assesses the legal responsibilities of states to protect World Heritage-listed coral reefs, using the Great Barrier Reef as a case study. It argues that Australia, as a high per-capita emitter with significant resources, is failing its obligations by not sufficiently reducing greenhouse gas emissions, permitting new fossil fuel infrastructure in the Galilee Basin, and failing to mitigate non-climate stressors such as the expansion of the Abbot Point coal port. The document recommends that the World Heritage Committee inscribe the Great Barrier Reef on the List of World Heritage in Danger.

The document proposes using the Planetary Boundaries framework to define the 'global level of ambition' for the Sustainable Development Goals (SDGs), particularly SDG 12 on Sustainable Consumption and Production. It suggests that by downscaling global boundaries to national or regional levels and using consumption-based environmental accounting, countries can account for both domestic and imported environmental impacts. The brief emphasizes the need for continuous science-policy dialogue to ensure vertical policy coherence and fair allocation of the global safe operating space among nations.

ClientEarth argues that the Commission on Human Rights of the Philippines has the jurisdiction to investigate the Carbon Majors because climate change threatens fundamental civil and political rights. The brief asserts that there is a linear causal relationship between greenhouse gas emissions and global warming, and that the Carbon Majors' emissions have contributed significantly to this process. It recommends that the Philippine government ratify the Paris Agreement and that the Carbon Majors publish business plans aligned with a warming limit of well below 2 degrees Celsius, in accordance with the UN Guiding Principles on Business and Human Rights.

The Living Planet Report 2016 highlights a critical decline in global vertebrate populations, which fell by 58% between 1970 and 2012. It introduces the 'Anthropocene' as a new geological epoch where human activity is the primary driver of planetary change, pushing four of nine planetary boundaries—climate change, biosphere integrity, biogeochemical flows, and land-system change—beyond safe operating limits. The report emphasizes that current consumption patterns exceed the Earth's biocapacity, requiring 1.6 Earths to sustain annual demand. It advocates for a 'One Planet Perspective' to decouple human development from environmental degradation, specifically calling for the transformation of global energy and food systems through renewable energy and agroecological farming.

The document argues that the Arctic is warming faster than the rest of the globe and will experience a temperature increase of 3.75C to nearly 5C even if the Paris Agreement targets are met. This amplification leads to critical global feedbacks, including sea level rise from the Greenland ice sheet and the release of carbon from thawing permafrost. The authors call for an immediate scale-up of decarbonization, the development of carbon dioxide removal (CDR) technologies, and the establishment of a strategic, stakeholder-driven adaptation program for Arctic societies. It also emphasizes the need for a coordinated Arctic Observing System with early warning components to track rapid changes and the creation of a unified Arctic coalition to influence global climate policy.

The document reports an unprecedented mass coral bleaching event on the Great Barrier Reef, attributing the increased likelihood of such events to climate change. It highlights severe mortality rates in the northern and central regions and criticizes the Australian government for approving projects like the Abbot Point port expansion and the Carmichael Coal Mine, which the authors argue undermine the reef's resilience and contribute to global greenhouse gas emissions.

The document provides an Environmental and Social Management Framework (ESMF) for a project aimed at conserving freshwater, marine, and coastal resources in the Mesoamerican Reef System (MAR). It defines the institutional roles of the Central American Commission on Environment and Development (CCAD) and partner NGOs, establishes a project classification system (Categories A, B, and C) based on risk, and outlines procedures for Environmental and Social Impact Assessments (ESIAs). The framework identifies priority river basins—including the Hondo, Motagua, Belice, Chamelecón, and Ulúa—and details the threats facing the reef, such as agricultural runoff, deforestation, and urban waste. It also sets strict safeguards for indigenous peoples, involuntary resettlement, and the use of hazardous pesticides, while proposing various 'ridge-to-reef' interventions like agroforestry and habitat restoration.

The report details two readiness requests: one for Vanuatu to develop Climate Information Services (CIS) to support adaptation and disaster risk reduction, and one for Senegal to establish a pipeline of privately funded, grid-connected solar projects to address an acute energy crisis.