Planet Earth faces unprecedented environmental changes that will affect all members of society. Arctic climate warming is more than twice the global rate and unpredictable extreme events cause major impacts on ecosystems and people. However, the Arctic atmospheric circulation causes extreme events and societal damage beyond the Arctic which need international research and monitoring to understand and predict. Furthermore, attitudes need to be changed throughout the world through outreach while the next generation needs to be equipped to live in a different world. INTERACT III innovates a pan-arctic network of 86 research stations in 16 northern countries to provide a fully integrated, advanced infrastructure now able to meaningfully address major societal challenges and provide services for 155 global and regional networks. Furthermore, the global reputation of INTERACT has attracted world-leading partners and enterprises to participate in reducing the impacts of hazardous change while maximizing the opportunities arising from new technologies. Specifically, INTERACT III provides comprehensive coordination of 64 partners and 86 research stations. The station managers design best practices to ensure excellent research, monitoring, education and outreach. INTERACT III builds on an extremely successful transnational access program that has already populated the Arctic with 900 researchers to further provide excellent science while reducing the environmental footprints of researchers through improving remote and virtual access. The access transnationality ensures new collaborations, innovative science and science diplomacy at a time of heightened geopolitical tensions. Station managers, transnational access and joint research activities cooperate to address major societal challenges in a fully integrated infrastructure while their data and understanding are made globally available through exceptional outreach and education and policy briefings to decision makers.

Arctic PASSION will address the urgent need for coordinated and accessible Earth observation and information services for the Arctic region. Despite significant international effort in the past, elements of the current pan-Arctic observing network still remain fragmented, disconnected, or have other critical shortcomings. Our aim is to overcome these shortcomings and to advance towards a fully integrated pan-Arctic Observing System of Systems (pan-AOSS). Working under the SAON framework and in partnership with rights-and stakeholders, Arctic PASSION will strengthen international scientific observations, community-based monitoring, and Indigenous knowledge and local knowledge within an observing system. We will co-create an innovative pan-AOSS that truly represents the diverse range of needs of the different user-groups and decision makers. The resultant pan-AOSS will provide its users with unrestricted access to the latest-available Arctic observations, including better access to Copernicus Arctic products. It will empower Arctic communities, policy makers and industries to make knowledge-based decisions. These will benefit society and support the adaptation and sustainability of the objectives of the UNFCCC, the IPCC and associated protocols. Arctic PASSION will also fill critical gaps in observations and improve the archiving, handling and interoperability of Arctic data systems. It will use these improvements to develop and implement eight new EuroGEO Pilot Services that will support emergency preparedness, food security, and responses to climate and socio-economic changes in the Arctic. The combination of the work performed by Arctic PASSION will provide compelling evidence to GEO to update Arctic GEOSS’ Community activity’ to the higher level of GEO ‘Regional Initiative’. Our legacy will be a stronger European voice in Arctic observing, and a more inclusive pan-Arctic observing system that supports a prosperous, sustainable and environmentally secure Arctic.

The Arctic is undergoing rapid changes. Multiple stressors such as climate change and pollution from local and remote sources affect human life, wildlife and the ecosystems of the Arctic. These are inseparably connected and require a holistic approach to analyses and assessments of pollution issues, and to their solutions. Using this One Health approach, ArcSolution will provide knowledge and mitigating solutions, co-created with the people of the Arctic. The Arctic is home to a variety of Arctic communities. To capture this diversity, ArcSolution will work in four Arctic locations, i.e. Northern Finland, Svalbard, Northern Norway (Tromsø) and Greenland, integrating local and Indigenous knowledge with environmental, health, technical and social science research in a One Health approach. The One Health framework will be instrumental in identifying knowledge and data gaps, and in synthesizing the information generated and collected in ArcSolution. In addition to scientifically relevant priority pollutants (e.g. per-/polyfluorinated alkylated substances, mercury, (micro)plastics and their additives, and key pathogens), ArcSolution will provide room for research and citizen science projects on locally prioritized issues. We will study pollution from local and remote sources in a climate change context, pollutant accumulation in food webs and human exposure. We will also evaluate current and predict future impacts of these pollutants on Arctic ecosystems and human health. Together with the local communities, we will develop solutions in the fields of circular economy, technology and chemicals management. Our results will be used in education programmes at Arctic schools already connected to ArcSolution. They will be communicated to policy-makers, industry and the scientific community. The One Health-based knowledge will strengthen the knowledge base and contribute to sustainable preventive actions for human life, wildlife and the ecosystems in the Arctic.