The Financialization of the Biosphere: ESG Metrics, Green Bonds, and the Political Economy of Climate Capitalism

Abstract

As the urgency of the global climate crisis intensifies, transnational capital markets have increasingly embraced Environmental, Social, and Governance (ESG) metrics and green financial instruments as the primary mechanisms for directing investment toward sustainable infrastructure. This comprehensive paper provides a critical political economy analysis of the ESG framework and the broader green finance ecosystem. We argue that these mechanisms function primarily as tools for the financialization of nature rather than structural solutions to ecological degradation. By examining the portfolio allocations, regulatory lobbying, and capital flows of major transnational asset management firms between 2015 and 2024, we demonstrate that ESG scoring systems are fundamentally compromised by corporate capture. These frameworks prioritize the mitigation of climate-related financial risks to corporate balance sheets over the mitigation of corporate harm to the biosphere, a phenomenon known as "single materiality." Furthermore, we analyze how the explosive growth of "green bonds" frequently subsidizes legacy fossil fuel conglomerates, allowing them to finance minor efficiency upgrades while maintaining core extractive business models, resulting in pervasive structural greenwashing. The study concludes that delegating the ecological transition to deregulated financial markets inevitably subordinates planetary survival to the imperatives of short-term capital accumulation. We propose alternative paradigms centered on direct state investment, strict regulatory mandates, the penalization of carbon-intensive portfolios, and the absolute decommodification of essential green infrastructure.