The green transition is no longer primarily a debate about whether decarbonisation is desirable. It is a debate about whether it is feasible and durable when the conditions that usually stabilise policy, investment, and social consent become unstable. Over the last decade, the transition has often been narrated through targets (net-zero deadlines), instrument catalogues (carbon pricing, subsidies, standards), and financial mobilisation (taxonomies, green bonds, disclosure-driven portfolios). These elements matter. Yet repeated episodes of implementation bottlenecks, distributional backlash, supply-chain fragilities, geopolitical contestation, and financial tightening show that the decisive question is rarely “what policy should look like in principle?”, but “what keeps a transition viable when shocks and frictions accumulate?”.