• GC049. Foundations for (Under)Standing: Interdisciplinary Insights on Global Change. Interdisciplinary approaches that include the social sciences provide valuable insights that are fundamental for understanding of the drivers, impacts and vulnerability of climate change, and the social, cultural and behavioral challenges related to climate change responses. Successful mitigation and adaptation efforts require the methods, perspectives, and data of multiple disciplines beyond the natural sciences, including (but not limited to) anthropology, archaeology, economics, geography, and sociology. This session will showcase case studies, methodologies, and synthetic assessments that engage multiple disciplines in topics relevant to the science of global change, bridging the natural and social sciences, as well as deepening public understanding, and policy perspectives.
   
• GC058. How Can Global Change Research Inform National Security Decision-Making? Increasing attention is being paid to the potential risks that global change poses to national security. These risks may be direct- through impacts on national security assets, for example- or indirect, through geopolitical impacts resulting from changes in food, water, and energy availability; changes in economic growth and development; increased risks to human health; and changes in strategic environments. Global change research can inform national security decision-making by advancing understanding and prediction of global change. Progress is constrained, however, by the undersampling of the environment, gaps in our understanding of key processes, and limitations in modeling of natural and human systems. This session welcomes abstracts showcasing substantive contributions research makes to national security issues  as well as current outstanding science needs. Potential topics include development of observations, process studies, and Earth system prediction capabilities, as well as research in important thematic areas, such as human health or the food-energy-water nexus.
   
• GC072. Partnerships for Advancing and Facilitating Science: The State of the Carbon Cycle & 20 years of Research Coordination. The Carbon Cycle Interagency Working Group (CCIWG) coordinates and integrates U.S. government-funded carbon cycle research. Born in 1998, it includes 12 U.S. agencies/departments leading the U.S. Carbon Cycle Science Program established in 1999. The CCIWG has facilitated/supported/led critical endeavors, including the North American Carbon and Ocean Carbon and Biogeochemistry Programs with the science community. One recent activity is the 2nd State of the Carbon Cycle Report (SOCCR2, 2018) authored by over 200 scientists from the U.S., Canada and Mexico. This North America-focused, decadal USGCRP Sustained Assessment report covers terrestrial, atmospheric, aquatic systems and ecosystem interfaces; social sciences, decision-support, modeling, observations, and mitigation. Celebrating over 20 years of CCIWG-facilitated partnerships, this session will highlight science syntheses, collaborative campaigns, SOCCR2 key findings, and some of the most critical multi-disciplinary experimental/manipulative, observational and modeling advances over the past two decades; revisiting progress made to date, and scoping upcoming decadal activities with the community.
   
• GC082. State of the Carbon Cycle in North America: Key Findings from Assessing a Decade of Science, Decisions, and Management Impacts. Carbon cycle information observed and collected from diverse managed and unmanaged systems (land, air, water, human settlements) and interfaces across North America have led to breakthrough multi-disciplinary advances in the understanding of global change and related impacts, as well as consequent decision-making across scales. This session features pertinent key findings from the 2nd State of the Carbon Cycle Report (SOCCR2, 2018) which assesses 10 years of carbon cycle science from the U.S., Canada and Mexico. Led by the Carbon Cycle Interagency Working Group (CCIWG) and U.S. Carbon Cycle Science Program, this report was developed by over 200 multi-disciplinary team members, incorporating assessments of observations, indicators, trends, model projections, society, and decision-support infrastructure and mechanisms, including mitigation options for carbon management across assessed systems. Presentations from related assessments, syntheses and campaigns focused on carbon cycle research, science informing decisions and decisions impacting the carbon cycle are also welcome.
   
• H079. Integrative Approaches Toward Large Scale Water and Energy Cycle Investigations. Water and energy play critical, intertwined roles in the global climate system. Better characterization and understanding of the coupled water-energy cycle at large scale is an important foundation to addressing numerous science and societal questions – e.g. around land-atmosphere interactions, coupling of the water and carbon cycles, and predictability of water cycle extremes. Enhancing our process understanding of the human and natural components of the water and energy cycles and better informing water resources will require integrative and interdisciplinary approaches. This session seeks findings and approaches that combine multiple capabilities to better document and understand the global water and energy cycles, how they are changing, and the impacts of change. Research projects that involve combining satellite and surface-based observations, global and regional process resolving models, and/or the resulting diagnostics and data, are particularly appropriate for this session.
   
• PA038. Learning by Doing: Building Community Resilience Through Climate Assessment. Climate assessments range from global to local and are intended to be used by practitioners, decision-makers, educators, and other stakeholders across those scales. The process of developing climate assessments often involves stakeholder engagement and can result in the co-production of assessment inputs. This session will highlight examples of how past climate assessments have been used and how the assessment process builds networks across communities. Presentations will discuss how climate assessments (at any scale) have: 1) informed planning or decision-making within their community or organization, 2) been used to develop new tools or products, and/or 3) been developed through engagement with user communities. Presenters are also encouraged to discuss barriers faced in using or producing climate assessments and how they’ve been overcome. Information from this session can benefit organizations and communities facing climate-related challenges and can inform the development of future assessments to improve their usability.
   
• PA052. Science to Action: Addressing Gaps in Access to Climate Science for Decision-Making. Are our climate science-based decision tools reaching people, and are they having an impact? Scientists are working with stakeholders to develop resources that support and inform decision-makers preparing for the impacts of climate change, and are increasingly doing a better job of ensuring their products are useful and usable. However, end users still routinely report that the decision support landscape is overcrowded and confusing. Communities also face capacity, funding and communication barriers that further inhibit their use of science-based resources. This session will explore attempts to bridge the divide between decision-makers and scientific information, and invite discussion of both successes and challenges in facilitating connections between them. We will explore critical questions like: who has access to our science-based decision tools, how useful are they, and how do we better evaluate them going forward? Experiences from any scientific field across the AGU community that have addressed similar questions are welcome.

Expert Review: IPCC Special Report on Land

Call for nominations: IPBES assessments of nature's values and sustainable use of wild species