The carbon collateral era

This article is part of In conversation about sustainable finance & emission reduction systems, a new series by Diego Balverde. You're reading volume one of the The collateral crisis series

The global financial system is entering a phase where the problem is no longer just energy prices or inflation but the erosion of the assets that support credit, in less than three years oil moved from 40–50 USD to above 100 USD in multiple episodes linked to tensions in the Persian Gulf (a region through which a critical share of global oil flows), European gas multiplied more than 10 times versus historical averages after 2022 and even after correcting it remains structurally higher, electricity prices in markets like Spain repeatedly exceeded 200 €/MWh with peaks above 250 €/MWh (levels that destroy industrial margins), inflation surpassed 10% in several European economies forcing central banks to keep interest rates high (making money more expensive), all of this is happening while assets are no longer evaluated only by what they produce but by how much they emit, and that shift is redefining who can access credit and who cannot. 

Collateral is deteriorating faster than the system admits 

The financial system is built on more than 300 trillion dollars in assets used as collateral (guarantees backing loans), a large portion of those assets is tied to carbon-intensive sectors such as energy, transport, heavy industry and agriculture, the Bank for International Settlements estimates that more than 30% of global corporate credit is exposed to these sectors and in emerging markets that figure can exceed 50%, the European Central Bank warns that up to 60% of banking assets in the eurozone carry material climate risk (risk of losing value due to emissions or regulatory changes), in disorderly scenarios those assets can lose between 5% and 20% of their value in less than five years, this is not a correction it is a systemic repricing (a massive revaluation of the system), the mechanism is direct, the CBAM (a European tax applied to imports based on how much they pollute) can add between 80 and 150 euros per ton of CO₂ in sectors such as steel or cement, a high-emission plant can see cost increases above 30%, that reduces profits, reduced profits weaken repayment capacity, weaker repayment reduces the value of the asset as collateral, when collateral loses value credit becomes more expensive or disappears, that is the transmission channel that is still underestimated. 

Expensive and volatile energy is breaking the system from within

The global industrial system was built on abundant and relatively cheap energy, that condition is gone, Europe moved from relying on more than 45% of Russian gas to less than 10%, replacing it with LNG (gas transported by ship, more expensive and more volatile) coming from the United States, Qatar and Africa, this shift increased structural costs and exposure to logistical disruptions, in sectors such as fertilizers, chemicals and metals energy represents between 30% and 70% of total costs, a sustained 50% increase in energy prices can wipe out profitability entirely, this already happened when more than 30% of ammonia production capacity in Europe was temporarily shut down and aluminum output declined due to lack of competitiveness, when a plant stops producing it stops generating cash flow, when it stops generating cash flow it loses economic value, when it loses economic value it stops being reliable collateral, at the same time central banks maintain high rates (expensive credit) to control inflation, creating a double pressure, lower income and higher financing cost, that combination is structurally destructive. 

Carbon now defines access to capital

Financial markets are rapidly integrating emissions as a core risk variable, companies are no longer evaluated only by revenue and debt but by carbon intensity, regulatory exposure and transition capacity, sustainable bonds (debt that is issued only if emissions are reduced) already exceed one trillion dollars globally, ESG loans (credit conditioned to environmental behavior) are growing at rates above 20% annually in some segments, this creates a clear shift, high-emission companies face higher borrowing costs or lose access to capital entirely, while companies that reduce emissions can improve their interest rates by 50 to 150 basis points (lower cost of debt), in capital-intensive structures that means millions per year, carbon is no longer an external cost, it becomes a determinant of financial viability, in practical terms carbon starts to function as a form of collateral (a condition to access money). 

Central banks are filtering who survives

The deepest shift is coming from monetary policy, the European Central Bank is already integrating climate risk into its collateral framework (defining which assets are acceptable as guarantees to access liquidity), this means that assets with higher climate exposure may receive larger haircuts (value discounts) or become ineligible, when an asset is no longer accepted as collateral it loses access to liquidity (cannot be easily converted into money), when liquidity disappears value follows, this is amplified by institutional investors managing more than 100 trillion dollars who are reallocating capital based on climate risk, insurers are withdrawing coverage in high-risk zones and banks are recalculating credit risk using emissions data, the result is a shrinking universe of financeable assets, not every asset will survive inside this system. 

Analysis — from systemic stress to structural break

What is happening is not a set of isolated crises but a convergence of reinforcing forces, expensive energy, persistent inflation, high interest rates, regulatory pressure and climate risk are acting simultaneously, the issue is not that some assets lose value but that many can lose value at the same time, that transforms a sectoral shock into a systemic one, but the deeper problem is that we are entering a global collateral crisis, if a significant portion of assets is no longer accepted as reliable guarantees the financial system loses its ability to expand credit, less credit means less investment, less investment means less production, less production means higher unemployment, this creates a contraction loop that does not behave like a traditional recession but like a structural reset of the economic system. 

Conclusion — money has already changed and most haven't noticed

The financial system is already redefining which assets are valid and which are excluded, carbon is no longer an environmental issue but a financial filter, transition is no longer optional but a condition to access capital, the discussion is no longer whether emissions should be reduced but whether a business can remain financeable under new rules, the key question is direct and unavoidable, is your asset still valid collateral, can your business still access financing, can your energy structure survive in a world of structurally high and volatile prices, because the line has already been drawn and the system is not waiting, the shift has started and it will determine who remains inside the financial system and who is left outside.

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