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The ocean plays a central role in climate change mitigation and adaptation. However, climate and ocean policies have been historically siloed. After decades of slow convergence, the Ocean and Climate Change Dialogue, decided at COP25 and launched online in December 2020, was the first forum for Parties and non-Party stakeholders to the UNFCCC to give their perspectives on how the climate regime should address ocean-related mitigation and adaptation. The Ocean Dialogue was informed by 47 prior open submissions provided by a broad swath of actors from across the UN system and from civil society, including traditional and youth voices. Our analysis of the submissions demonstrates a political evolution towards the nexus among climate, ocean, and biodiversity regimes. The submissions uniformly acknowledge that ocean and climate systems are inextricably linked, and that consideration of ocean-based action will strengthen climate action and vice versa. Salient themes of the submissions include changing ocean impacts, carbon sinks and blue carbon opportunities, and the need for ecosystem resilience, biodiversity management and improved understanding of normative and institutional frameworks. There is a strong call to recognize the interconnectedness of the biophysical world. Similar themes emerged during the actual Ocean Dialogue and the subsequent informal meeting on next steps. The main message conveyed is the dire necessity to implement strong stewardship and good governance of the blue planet in a disrupted climate using cooperative and concrete actions. This analysis highlights the need for a continued transdisciplinary international dialogue on the ocean and climate change which elevates the ocean-climate-biodiversity nexus via collaborative science, finance, and policy. Ocean and marine ecosystem impacts of climate change were widely acknowledged, and referenced by ninety-one percent of submissions. After decades of slow integration of ocean into climate policy, the Ocean Dialogue submissions acknowledge that climate policy must address linkages with the ocean and its biodiversity. Concerns include changing ocean impacts, carbon sinks and blue carbon opportunities, and the need for ecosystem resilience, biodiversity management and increased institutional interactions. Continuation of this Dialogue, with strengthened collaboration between States and non-state actors, may give rise to multilateral and multilevel decision-making toward sustainable climate, ocean and biodiversity action. [ABSTRACT FROM AUTHOR]

Robust strategies and action-plans are essential in tackling climate change. Given the local and context-specific nature of climate impacts, the involvement of municipalities is key for effective mitigation and adaptation solutions. Due to its vulnerability and low level of adaptive capacity, Portugal offers insights into adaptation research and practice in Europe. This article hypothesizes that National and European climate change adaptation strategies are not effectively involving municipalities, and are thus losing out on the opportunity to take stock of local responses for climate change mitigation and adaptation. To address this issue, a survey by questionnaire was done to Portuguese municipalities, and data was collected regarding the following: the importance attributed to climate change; the mitigation and adaptation measures planned and implemented; the main drivers, concerns, and triggers promoting climate policy and actions; and access to information and knowledge. 109 valid responses were collected across the country from a universe of 308 municipalities. Results show climate change in planning agendas is still ‘little’ or ‘not important’. There is also a clear difference in the drivers and concerns motivating climate policy, and action between Littoral and Inland regions. Overall, there is a greater focus on mitigation than adaptation. The discussion highlights the need for capacity building, the issue of equity, the role of European networks, and the relevance of cultural differences between Littoral and Inland regions. The conclusion distils the main lessons learned concerning these challenges and needs, the role of transnational networks, and the cultural contexts for building resilience, through adaptation, across Europe. [ABSTRACT FROM AUTHOR]

The likelihood of being faced with trap-like situations is a worrisome aspect of long-term policy-making, such as for climate change adaptation. Even when a policy may be effective in the short-term, changes in problem or policy contexts may render it ineffective over time. The design of 'robust' policies, meaning those which are able to self-adjust to linear changes in their environment, can be contrasted with 'resilient' ones which are able to adjust not only to linear, but also non-linear shifts in their contexts. Building on Boonstra and de Boer (AMBIO 43:260-274, 2014)'s argument that traps should not be considered as a static phenomenon; rather their emergence and development is often directly influenced by history and path-dependency, this paper elaborates how trap-like situations can emerge with increase in climate uncertainty over time. Three strategies to address policy traps due to climate change form subjects of inquiry in this paper: avoiding traps in the first place, designing against traps, and overcoming traps once in them. Each requires a specific type of design thinking and practice. [ABSTRACT FROM AUTHOR]