Scientists and researchers associated with the Earth Commission are urging a profound re-evaluation of the frameworks used to envision humanity’s future, contending that current climate and biodiversity projection models are overly restrictive and insufficient for addressing the intertwined, complex crises the world faces today. The prevailing scenarios guiding policy and strategic decisions often operate within the confines of existing economic paradigms and governance models, limiting their capacity to capture transformative change and the intricate interplay of ecological and social variables essential for sustainable futures.
In a groundbreaking article recently published in the peer-reviewed journal One Earth, the authors critique the predominant modeling approaches for their embedded assumptions—assumptions that inadvertently perpetuate the status quo and contribute to ongoing environmental degradation and social inequities. These scenarios, while instrumental for understanding potential trajectories, typically emphasize incremental technological advancements or policy tweaks instead of embracing radical systemic shifts. The research underscores the urgent need for models that can explore alternative economic systems, novel governance frameworks, and fundamentally different relationships between humans and nature.
Professor Laura Pereira from the Global Change Institute at the University of the Witwatersrand and the Stockholm Resilience Centre, a lead author in this work, articulates a sharp observation: the majority of global scenario exercises attempt to address future challenges without fundamentally reimagining present conditions. This approach is inherently limited when the planet confronts not a single but a constellation of crises—including climate change, biodiversity collapse, and soaring social inequality—that are tightly interwoven. The existing models often falter in representing the dynamic interactions among these crises or in integrating shifts in political power, institutional structures, and cultural values that could reshape trajectories toward equity and resilience.
The Earth Commission, a consortia convened by Future Earth—the world’s largest sustainability research network—plays a pivotal role in assembling interdisciplinary expertise to identify the planetary boundaries essential for sustaining life on Earth. The commission’s international roster of scientists, including four commissioners based in Africa, advocates for science-driven policies that safeguard critical thresholds related to clean air, water quality, biodiversity preservation, and climate stability.
Modeling remains an indispensable scientific tool for simulating Earth system processes, simplifying their vast complexity to generate testable projections. Various model types serve distinct purposes: atmospheric circulation models, oceanographic simulations, ecosystem dynamics frameworks, and economic projection models all contribute pieces to a vast and intricate puzzle. Among these, Integrated Assessment Models (IAMs) serve as key instruments for policy formulation by linking environmental processes with economic and social factors. However, IAMs have recognized deficiencies, particularly regarding their ability to incorporate socio-political complexities, governance diversity, and alternative economic structures. There is a pronounced absence of such models tailored to the African continent, a significant blind spot acknowledged by the Future Ecosystems for Africa initiative, led by Wits University, which seeks support to build capacity in this area.
The implications of these modeling shortcomings are profound. The outputs derived from scenarios and models influence global environmental assessments such as those led by the Intergovernmental Panel on Climate Change (IPCC) and the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES), as well as international negotiations under the United Nations Framework Convention on Climate Change (UNFCCC) and the Convention on Biological Diversity (CBD). Despite their influence, many scenarios neglect critical questions regarding equity: Who gains from proposed futures? Who bears disproportionate costs? Whose perspectives are marginalized or omitted? The Global South’s voices and priorities remain conspicuously underrepresented in dominant scenario narratives, raising concerns about inclusivity and justice in global environmental decision-making.
To overcome these deficiencies, the authors advocate for a generation of “integrated transformative scenarios.” These cutting-edge frameworks would weave together climate mitigation and adaptation pathways with biodiversity conservation and social justice imperatives. Importantly, such scenarios must be co-produced through participatory approaches involving a more diverse array of stakeholders, including Indigenous Peoples, local communities, social scientists, and political actors. This inclusivity is vital for capturing plural values, knowledge systems, and priorities, thus producing more robust and equitable futures.
The article delineates an ambitious research agenda to propel this vision. Among the key recommendations are establishing a Global South–led “scenarios secretariat,” which would coordinate scenario development sensitive to local contexts and challenges. Furthermore, the development of novel modeling tools is encouraged—tools designed from inception to handle systemic complexity, deep uncertainty, and nonlinear interactions across environmental and social dimensions. Strengthening interdisciplinary collaborations, especially integrating insights from economics, political science, ecology, and Indigenous knowledge holders, forms another cornerstone of this agenda.
Illustrative examples already point toward these transformative pathways. Nature-centred scenarios that prioritize ecosystem integrity and human well-being have gained traction. Post-growth economic frameworks challenge the hegemony of GDP as the driver of policy and instead emphasize sufficiency, equity, and resilience. Justice-oriented initiatives, such as the Justice Model Intercomparison Project and the Earth Commission’s Transformations Pathways workstream, are pioneering approaches that explicitly center fairness and redistribution in climate and environmental modeling. Collectively, these initiatives begin to chart visionary futures that transcend narrow economic metrics and embrace sustainability and social equity in tandem.
Albert Norström, Earth Commission’s science director, encapsulates the urgency of this paradigm shift: “There’s a real need to move beyond business-as-usual modelling and start co-creating futures that reflect the diversity of societies, knowledge, and values around the world.” This statement reflects an emerging consensus in sustainability science that inclusive, pluralistic, and adaptive scenario development is essential to navigating the planet out of its current crises and toward a genuinely safe and just world.
The University of the Witwatersrand stands at the forefront of these efforts, representing a globally respected institution that combines academic excellence with a commitment to social justice across the African continent. With strong capabilities in disciplines spanning botany, zoology, and environmental sciences, Wits University leverages its unique vantage point in the Global South to contribute critical, locally relevant solutions to global environmental challenges. Its increasing research output and international collaborations underscore its pivotal role in advancing transformative science.
Stockholm Resilience Centre, another key player in this scientific endeavor, operates at the intersection of human and ecological systems, seeking to understand and promote ways for society and nature to coexist and thrive on a planet facing unprecedented pressures. This institution’s collaborative model, bridging Stockholm University and the Royal Swedish Academy of Sciences’ Beijer Institute of Ecological Economics, exemplifies integrative and high-impact environmental research.
The call to action from these institutions and their allied scientists is clear: the world requires a radical reimagining of scenario development methodologies that foreground systemic transformation, inclusivity, and justice. Only by embracing such comprehensive approaches can humanity hope to guide global development onto pathways that secure ecological sustainability while rectifying historic inequities, ensuring a future where all life not only survives but flourishes.
Subject of Research:
Global environmental modeling, climate and biodiversity scenarios, transformative sustainability pathways, systemic equity in future scenarios
Article Title:
Rethinking Global Scenarios: Toward Inclusive and Transformative Models for a Safe and Just Future
News Publication Date:
Not explicitly stated; inferred from linked One Earth article (2026)
Web References:
- Earth Commission: www.earthcommission.org
- Future Earth: www.futureearth.org
- Future Ecosystems for Africa: futureecosystemsafrica.org
- University of the Witwatersrand: www.wits.ac.za
- Stockholm Resilience Centre: https://www.stockholmresilience.org
References:
Pereira, L., et al. (2026). “Towards integrated transformative scenarios for climate, biodiversity, and social equity”. One Earth. https://www.cell.com/one-earth/fulltext/S2590-3322(26)00111-9
Keywords:
Climate modeling, biodiversity scenarios, transformative pathways, global South, equity in environmental futures, Integrated Assessment Models, Earth Commission, sustainability science, system complexity, Indigenous knowledge, future scenarios, planetary boundaries
