Preprints
https://doi.org/10.5194/egusphere-2026-2263
https://doi.org/10.5194/egusphere-2026-2263
24 Jun 2026
 | 24 Jun 2026
Status: this preprint is open for discussion and under review for Earth System Dynamics (ESD).

The Strategic Dynamics of the Anthropocene: Bridging Social Dilemma Games and Empirical CO2 Emissions with Probabilistic Programming

Ali Banihashemi, Hugo Storm, and Wolfram Barfuss

Abstract. In the Anthropocene, human activities dominate planetary change, yet the strategic motivations behind this unsustainable behavior remain poorly understood. Game theory has been used to analyze the strategic structure of the Anthropocene; however, it lacks empirical grounding. Here, we bridge this gap by inferring the strategic dynamics underlying global CO₂ emissions. We model emissions as the outcome of stylized games, then we use Bayesian probabilistic programming to compare ten model configurations against historical data.

Our results indicate that the climate problem is more likely to be a free-riding problem, not a coordination failure. The inferred parameters capture a deep inequality in emissions, resonating with the Global North–South narrative and differentiated responsibilities. The projections align with RCP 6.0 (approximately 2.0–3.7°C warming by 2100; best estimate ~2.8°C).

Our results suggest that intervention toward transforming the payoff structure must be ordered: the first priority is controlling the dominant emitter through reducing gains from defection through enforceable mechanisms and technological transformation; the second is addressing fear-driven defection by the minor emitter through transfers that support vulnerable actors. Methodologically, we demonstrate that Bayesian probabilistic programming can bridge the gap between stylized game theoretic models and empirical data, offering a principled framework for inferring strategic incentives from observed trajectories while quantifying parameter uncertainty.

Publisher's note: Copernicus Publications remains neutral with regard to jurisdictional claims made in the text, published maps, institutional affiliations, or any other geographical representation in this paper. While Copernicus Publications makes every effort to include appropriate place names, the final responsibility lies with the authors. Views expressed in the text are those of the authors and do not necessarily reflect the views of the publisher.
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Ali Banihashemi, Hugo Storm, and Wolfram Barfuss

Status: open (until 05 Aug 2026)

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Ali Banihashemi, Hugo Storm, and Wolfram Barfuss
Ali Banihashemi, Hugo Storm, and Wolfram Barfuss
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Short summary
How can we tell which kind of cooperation problem the world is in? We fit simple models of strategic decisions to historical carbon dioxide emissions. The method returns not just the best fit but the full range of plausible answers. It maps which scenarios the data support and rules out what is structurally impossible under each. The data favor a free-riding problem between unequal actors. The method bridges formal models of strategic behavior with real data.
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