COP 30 and climate governance under informational stress: Political coherence, disinformation, and decision-making risks

The United Nations Climate Change Conferenswce (COP 30), held in November 2025 in Belém do Pará, returned Brazil to the center of global climate diplomacy. This article frames COP 30 as a governance inflection point where three pressures converge: the tightening margin around the 1.5 °C threshold, rising exposure to extreme events, and an unstable informational environment in which climate evidence is contested and strategically distorted. We argue that effective climate action now depends not only on targets or finance, but on operational political coherence (alignment between international commitments, domestic policy instruments, and sectoral economic decisions) and on “truth governance,” the institutional capacity to sustain evidence-based decision-making under informational disruption. These conditions shape decision credibility and implementation feasibility, determining whether scientific thresholds can be translated into enforceable governance routines within the Earth system’s safe operating space.