Colombia's Climate Insurgency: The Global South Rewrites the COP Playbook

In Santa Marta, Colombia, in April 2026, a gathering of nations arrived at an unusual consensus: the United Nations climate process, as currently constituted, is incapable of producing the fossil fuel phase-out that climate science demands. The conference — convened by Colombian President Gustavo Petro's government specifically out of frustration with the COP summits, where, as the Guardian reported on 17 April, "renewable progress has been stalled by major polluters" — represents something more significant than diplomatic positioning. It is a structural challenge to the architecture of global climate governance, mounted by nations that are disproportionately vulnerable to climate breakdown and disproportionately excluded from the decision-making that perpetuates it.

The precipitating failure is not abstract. Last year's COP concluded without fossil fuels being mentioned in the final outcome document. Two weeks of negotiations, billions of dollars of diplomatic expenditure, and the world's most scientifically urgent crisis — and the final text erased the principal driver of that crisis from its conclusions. Colombia, itself "the largest coal and fourth largest oil exporter in Latin America," according to the Guardian, chose to respond not by withdrawing from the multilateral process but by constructing a parallel one.

The framework through which to understand this move is Joan Martinez-Alier's "environmentalism of the poor" — the recognition that the most effective climate actors are often those with the least structural power, precisely because they bear the heaviest ecological costs of inaction. Colombia's climate coalition is environmentalism of the poor at the level of international relations.

What the COP Process Systematically Suppresses

The architecture of the annual Conference of the Parties was designed, ostensibly, to produce consensus. In practice, as observers from Martinez-Alier through to the Climate Action Network have documented, the consensus mechanism functions as a veto for major fossil fuel producers. Any nation — and the roster includes Saudi Arabia, Russia, and increasingly, the United States under Trump — can block language it finds commercially inconvenient. The result is the systematic dilution of scientific recommendation into diplomatic acceptability.

The 2025 COP outcome — fossil fuels unmentioned — was not an anomaly. It was the logical endpoint of a process structured around unanimity in conditions of radically unequal economic interest. Major oil and gas producers have everything to lose from strong phase-out language and the diplomatic leverage, derived from their energy market power, to prevent it. Small island states, coastal developing nations, and climate-vulnerable middle-income countries like Colombia have everything to lose from climate inaction and, until now, insufficient structural power to force the outcome they need.

Colombia's coalition of the willing attempts to rebalance this asymmetry by separating the willing from the unwilling — building a bloc of nations committed to fossil fuel phase-out that can act as a unified pressure group within the COP process and, potentially, as an alternative multilateral framework if the COP continues to fail. The Santa Marta conference is explicitly born of what the Guardian describes as "frustration at Cop summits" — a frustration that has now hardened into institutional action.

The Carbon Colonialism Embedded in Climate Deadlock

Crawford's framework for understanding how institutional systems encode power relations illuminates the COP deadlock in important ways. The conference's consensus architecture was not designed with climate justice in mind; it was designed for diplomatic management of competing state interests in an era when climate was a secondary concern. That architecture now functions, in practice, to protect the interests of major fossil fuel producers at the expense of climate-vulnerable nations — a dynamic that has characteristics of what analysts increasingly term "carbon colonialism."

The concept is specific: the major historical emitters, having built their industrial wealth through unrestrained fossil fuel consumption, now use their structural position in multilateral institutions to slow the transition in ways that impose costs — rising seas, intensifying droughts, increasingly severe weather events — on nations that contributed minimally to the emissions stock. Samir Amin's unequal ecological exchange provides the complementary framework: the ecological costs of Northern industrialisation are being externalised onto Southern ecologies, and the diplomatic costs of Northern fossil fuel dependency are being externalised onto Southern negotiating positions.

Colombia's decision to convene a rival forum is, in this framing, an act of structural resistance — not merely diplomatic frustration. By building a coalition of nations willing to commit explicitly to fossil fuel phase-out, Petro's government is attempting to create the kind of critical mass that can shift the COP's political centre of gravity, even if it cannot immediately override the veto power of major polluters.

The Internal Contradiction: Colombia's Own Carbon Economy

The analysis would be incomplete without confronting the tension that the Guardian's reporting does not shy away from: Colombia is itself "the largest coal and fourth largest oil exporter in Latin America." Petro, a former guerrilla and self-described ecosocialist, came to power partly on a platform of energy transition — and has faced enormous domestic political pressure from communities dependent on fossil fuel extraction revenues. His climate diplomacy is simultaneously genuine and structurally constrained by the same carbon economy he is seeking to dismantle internationally.

This is precisely what Kate Raworth's doughnut economics predicts: transition is not a linear movement from dirty to clean energy, but a negotiation between competing social foundations — the workers and communities whose livelihoods depend on fossil fuel extraction, and the wider populations whose safety depends on climate stability. The nations most honest about this complexity are often those, like Colombia, that are simultaneously extractors and victims, polluters by export and climate-vulnerable by geography.

The Santa Marta coalition's significance lies partly in this honesty. Unlike the COP declarations of major emitters — which often combine ambitious headline targets with implementation timelines that render them meaningless — Colombia's initiative is structured around the admission that the current process cannot produce what science requires, and that a different diplomatic architecture is needed.

Stakes: Whether a Parallel Process Can Exert Real Leverage

The central question for the Santa Marta coalition is whether it can accumulate sufficient political and economic weight to change outcomes inside the COP, or whether it risks becoming a forum for solidarity statements that major polluters simply ignore. The precedent is mixed. The Alliance of Small Island States (AOSIS) has operated as a climate-ambitious bloc within the UNFCCC for decades; its moral authority is unquestioned, its structural leverage has been systematically limited.

What Colombia's coalition potentially offers is scale. If it includes major developing economies — nations with significant diplomatic and economic weight — it can exert pressure not only through the COP but through bilateral financial relationships, trade agreements, and the multilateral development banks that fund energy infrastructure across the Global South. The Iran war context is not irrelevant: the geopolitical shock accelerating Europe's renewable investment also creates political space for reframing climate commitments as security strategy, which may give the Santa Marta coalition new interlocutors in capitals previously resistant to fossil fuel phase-out language.

The structural problem remains. The COP consensus architecture does not yield to coalition pressure without explicit political decision by major emitters to step back from their veto. The climate coalition of the willing can raise the political cost of obstruction; it cannot, alone, override it. What it can do — and what Santa Marta appears designed to achieve — is demonstrate that the Global South has a diplomatic alternative to dependency on Northern COP goodwill, and that the patience of climate-vulnerable nations for process-without-outcome has reached its structural limit.

Monexus Climate Desk treats Colombia's initiative as a structural diplomatic rupture rather than a diplomatic footnote — the wire coverage focused narrowly on process, missing the institutional challenge to COP architecture that the Santa Marta conference represents.