The European Commission's 2026 proposals to reform the Market Stability Reserve represent a fundamental shift in EU carbon policy, transforming what began as a technical mechanism to address allowance surplus into a multifaceted instrument balancing climate ambition, industrial competitiveness, and geopolitical concerns. This analysis traces the MSR's evolution from the 2010s crisis through successive amendments, examining how the cessation of invalidation and recalibrated parameters interact with broader i
