Can Ecological Credit Break the Debt Doom Loop?

On 1 September, a barrel of oil became more expensive and Britain's future became more expensive with it. Renewed conflict in the Middle East pushed oil prices higher, reviving fears of inflation. Investors sold government bonds and demanded a higher return for lending to states already carrying large debts. In Britain, the yield on thirty-year government debt reached approximately 5.9 per cent, its highest level since 1998, while the ten-year yield approached 5.25 per cent, a level not seen since the financial crisis. Nothing new had been built. Yet the price of financing Britain's future had risen.

This is often described as a bond-market story. It is really a story about the connection between the physical and financial worlds. A disruption to energy supply raises the cost of transport, food and production. Those costs raise inflation. Inflation changes interest-rate expectations. Higher rates reduce the price of existing bonds and increase the return investors demand on new ones. The disturbance travels from oil fields and shipping routes into mortgages, pensions, company valuations and the government's budget.

The financial economy can remain detached from physical reality for a surprisingly long time, multiplying claims, inflating asset values and transferring costs elsewhere. But detachment is not independence. Every financial claim still depends upon the real economy’s ability to provide the income, energy, materials and productive capacity required to honour it. When that capacity can no longer keep pace, the two economies are forced back together, usually through inflation, higher interest rates, falling asset prices and financial loss. Reality eventually reasserts itself, but rarely gently.

Britain, like many advanced economies, has accumulated claims more quickly than it has strengthened the capacity required to honour them. Each shock therefore leaves us needing new debt to support obligations created by the old. The question is how we built an economy that must borrow more each time reality catches up with it.

Debt Is Not the Problem

Debt is one of civilisation's most useful inventions. It connects resources available today with income expected tomorrow, allowing a family to buy a home before accumulating its full price, a business to build a factory before selling everything it will produce, or a government to construct infrastructure whose benefits extend across generations. Debt is therefore a bridge across time, and its value depends upon what exists at the other end. The difficulty begins when we treat three fundamentally different uses of debt as though they were economically equivalent.

Debt that builds creates reliable energy, useful infrastructure, healthy and capable people, new knowledge, additional housing or productive enterprise. It can increase the future income from which its interest and principal will be paid. The liability rises, but so does the capacity supporting it.

Debt that bids allows purchasers to offer more for assets that already exist. When housing supply is constrained and mortgage finance becomes more available, buyers can borrow larger amounts to compete for the same homes. Demand determines what people want; credit determines how much of that demand can become an effective bid. Prices rise, mortgages grow and the property acquires a higher financial value, but the country has not housed another family.

Debt that backfills refinances previous claims or replaces capacity that has already been consumed. Government borrows to repair infrastructure that should have been maintained, support households facing structurally high housing and energy costs, or meet rising health expenditure after years of weak prevention. Such spending may be essential, and repair can protect valuable capacity from further loss. The distinction is that it restores yesterday's position without necessarily creating the additional income or resilience required to carry tomorrow's liability.

Debt that builds, debt that bids and debt that backfills are routinely grouped together. A pound borrowed to create a productive asset appears beside a pound borrowed to service a previous loan. Both increase the debt total by the same amount, but they leave entirely different futures behind.

The important question is therefore not simply how much was borrowed, but what future capacity exists because the debt was created. Debt becomes dangerous when the claims placed upon tomorrow grow while tomorrow's ability to honour them does not.

Two Economies, Two Forms of Growth

The real economy consists of people, knowledge, energy, land, water, machines, buildings, infrastructure and productive organisations. The financial economy consists largely of claims upon that activity and capacity: money, deposits, loans, bonds, equities and pensions. The two belong together. Finance distributes risk, coordinates activity across time and connects savings with projects requiring capital.

But they do not grow in the same way. Real productive capacity takes time to create. Homes require land, materials, labour and planning. Energy systems require engineering and infrastructure. Human capability requires health, education and experience. Living systems require protection, restoration and biological time.

The financial economy can expand much faster. A bank creates a loan and a corresponding deposit. Investors revalue a company because interest rates have fallen. Credit flows into land or housing and raises the price purchasers can afford. A government issues another bond. New claims appear immediately against productive capacity that may take years to build - or may never be built at all.

This is the central mismatch: financial claims can be created almost instantaneously, while the capacity required to honour them must be constructed in the real world. When claims expand faster than capacity, the financial economy begins generating its own apparent evidence of success. Rising asset prices strengthen collateral; stronger collateral supports more lending; and more lending raises asset prices again. Owners appear wealthier, banks appear safer and investors observe attractive returns.

For a while, everybody can be correct in financial terms. The house is worth more because somebody can borrow more to buy it; the collateral is stronger because the house is worth more; and the loan appears secure because the collateral is stronger. Yet the asset still provides one home. The same logic operates in equity markets: lower interest rates can raise the present value of expected profits without the company selling another product or becoming more productive.

They are not. One is an increase in the price of a claim. The other is an increase in the capacity available to honour it. Confusing the two is how a country can become wealthier on paper while growing less capable underneath.

When Debt Begins to Reproduce Itself

The cycle becomes dangerous because the rest of the economy gradually adapts to the higher financial values. Households rely upon property wealth, pensions depend upon asset prices and bond markets, banks lend against collateral, and companies refinance rather than repay. Governments receive transaction taxes, capital-gains taxes and the political confidence associated with rising wealth. Public and private decisions begin from the assumption that the valuations will persist.

A correction is no longer confined to investors who accepted a risk. Falling property prices weaken household balance sheets and bank collateral. Falling bond prices affect pension funds and raise government borrowing costs. Falling share prices make corporate financing more difficult. Defaults reduce employment and tax receipts. The financial adjustment travels into the real economy.

Finance can ignore productive reality on the way up, but it cannot escape it on the way down. Rising claims appear to validate the system; falling claims reconnect it abruptly to mortgages, pensions, employment, company failures, taxes and public rescue. The pattern resembles ecological overshoot: a population can expand beyond the continuing capacity of its habitat while accumulated resources remain available. For a time, growth appears to validate itself. When the resource base finally gives way, the population does not gently return to balance; it crashes.

Authorities then face an unpleasant choice. They can permit financial claims to correct and risk severe damage to households, employment, pensions and productive businesses. Or they can intervene to stabilise the structure that has grown beyond the capacity beneath it.

Intervention may be essential. Central banks provide liquidity or purchase assets because allowing the payments system or government bond market to fail would cause indiscriminate harm. Governments guarantee deposits, support incomes and rescue institutions whose collapse would pull viable activity down with them. But rescue also changes behaviour. Private losses can become public obligations, investors learn which assets cannot politically be allowed to fail, and cheap refinancing delays recognition of weak investments.

Debt then reproduces itself through several channels. New borrowing refinances principal that cannot be repaid. Interest is added to outstanding balances. Public debt absorbs private losses. Weak productive capacity suppresses growth and tax receipts, creating further pressure to borrow. The system borrows on the way up to inflate the claims and on the way down to prevent them collapsing.

Yesterday's financial claims absorb resources that should have been building tomorrow's capacity. Because that capacity is not built, tomorrow requires still more borrowing. That is the trap.

Britain Inside the Loop

Britain offers a particularly clear example because several parts of the cycle now reinforce one another.

Housing is scarce where people most need it. Expanding mortgage credit turns that constrained supply into higher effective bids, allowing buyers to compete with larger borrowed sums for the same homes.

Larger mortgages and higher rents absorb household income, increase wage pressure and require greater public support. Housing wealth supports confidence and consumption, making governments reluctant to permit a material correction. The country becomes increasingly dependent upon prices that also make ordinary life more expensive.

Poor health creates a similar loop. Illness reduces participation and productivity, lowers tax receipts and increases demands upon public services. Government spends more managing the consequences while the fiscal pressure makes sustained investment in prevention harder. Expenditure rises, but the underlying human capacity may continue to deteriorate.

Energy dependence moves rapidly through the entire economy. A rise in oil and gas prices increases production and transport costs.

Household bills rise, businesses lose margin or increase prices, inflation remains elevated and both public and private debts become more expensive to service. Inflation is a sustained rise in the general price level. It can emerge when financial demand grows faster than the economy's capacity to supply goods and services, when essential physical inputs become scarcer or more expensive, or through some combination of the two. In that sense, inflation is often the point at which financial demand collides with physical capacity.

The policy response can deepen the problem. A physical shortage causes inflation; the central bank raises interest rates to suppress demand; and those higher rates also make the energy, housing and infrastructure investment needed to relieve the shortage more expensive. The treatment can weaken the capacity whose absence helped cause the inflation.

The government already spends roughly £110 billion a year on net debt interest. Britain also has an unusually large proportion of inflation-linked government debt, so changes in inflation can feed into the public finances more quickly than in many comparable countries.

Quantitative easing altered the structure further. Following the financial crisis, the Bank of England created central-bank reserves and used them mainly to purchase long-dated government bonds. This supported financial stability and reduced longer-term borrowing costs, but also replaced part of the state's longer-term, fixed-rate debt with reserves remunerated at Bank Rate. As rates rose, that cost increased quickly. The Bank estimates that QE and its subsequent unwinding may still have reduced government borrowing costs overall. The lesson is subtler than declaring it a mistake: emergency measures that stabilise one part of the system can create dependencies and move risk elsewhere.

Britain now borrows partly because its foundations are weak, while the cost of servicing that borrowing reduces the resources available to strengthen them. Higher yields worsen the fiscal outlook, prompting higher taxes, lower expenditure or additional borrowing. Investment that would improve energy security, health, skills and infrastructure becomes harder to defend within short-term fiscal rules. Weak capacity persists, leaving the country exposed to the next energy shock, health crisis or financial correction. Debt is not merely funding public activity; it is increasingly financing the cost of standing still.

The Physical Economy Eventually Sends the Bill

The latest bond sell-off makes this relationship unusually visible. Conflict threatens an energy supply route; oil prices rise; inflation expectations increase; and investors demand a higher return for holding government debt. Debt interest rises, fiscal space contracts and productive investment becomes more difficult, leaving the country less able to withstand the next physical shock. What appears on a trading screen as a movement in yields began with geography, energy and material dependence.

The same principle applies beyond oil. Food prices depend upon soils, water, climate and biological productivity. Health depends partly upon housing, air, nutrition and functioning communities. Industry depends upon energy, materials, infrastructure and knowledge. Financial repayment depends upon all of them.

Yet the condition of these foundations is largely absent from the financial signals governing credit creation. A bank assesses a borrower's income, collateral and probability of default. A government assesses debt relative to GDP, tax receipts and the interest rate demanded by markets. These are important measures, but they observe the financial claims more clearly than the productive systems expected to honour them.

Human appropriation of net primary production - HANPP - provides one way of seeing part of that hidden dependency. Net primary production is the biological energy captured by plants and made available to the rest of the living world. HANPP estimates how much of that productivity humanity appropriates through harvest, land-use change and related effects.

It is not a complete measure of ecological pressure. It does not by itself capture carbon accumulation, freshwater stress, ocean degradation, mineral depletion or every form of pollution. But it makes one important fact tangible: human economic activity is drawing upon a finite flow of biological productivity that no financial institution created.

If human appropriation exceeds a defensible boundary, the real economy is consuming the productive foundation on which future activity depends. Financial claims can continue expanding on paper. The living capacity available to support them cannot.

Eventually the physical economy sends the bill through food prices, energy costs, lost resilience, damaged health, disrupted supply chains or political instability. Finance calls each event a shock, but the underlying system may be revealing accumulated dependence. When appropriation exceeds productive capacity, the consequence does not remain inside an environmental account; it appears in prices, less reliable supply and rising public and private costs. Inflation is one way the physical economy tells the financial economy that its claims have outrun the capacity available to satisfy them.

Why the Familiar Remedies Do Not Break the Cycle

The established policy choices largely manage the volume, price and distribution of financial claims without changing their relationship to productive capacity.

More borrowing can prevent immediate collapse and fund vital investment. But where it sustains consumption, refinances old liabilities or merely restores capacity already consumed, it can add another claim without creating the additional capacity required to support it.

Austerity can reduce expenditure while weakening the future tax base. Cutting maintenance, health, skills or infrastructure may improve a near-term fiscal measure and worsen the country's underlying position. The financial deficit narrows while the capital deficit grows.

Inflation can reduce the real value of fixed nominal debt, but it damages savers, reduces purchasing power and raises future financing costs. In Britain, inflation-linked liabilities transmit part of the cost directly back to government. Quantitative easing and yield suppression can restore market functioning, but can also elevate asset prices and encourage the system to organise itself around continued access to cheap money.

Economic growth remains essential, but the headline number does not tell us whether capacity has improved. GDP may rise because more credit inflates existing property, because pollution creates clean-up expenditure or because deteriorating health requires additional treatment. Activity has increased. The position left behind may be weaker.

Green finance can redirect capital towards a better future. But unless its financial advantage depends upon measured change in the real world, a green label may change only the description of an investment. We have tried to change the label, disclosure and intention; the missing step is to change the terms on which credit is created.

Reconnect Debt to What Remains

The first requirement is a better account. Before debt is created, the lender, borrower and government should be able to ask what capacity will exist because the money was provided. What future income or avoided cost will it generate? Which productive foundations will strengthen and which will deteriorate? Who receives the benefit, who bears the risk and what liabilities have been transferred elsewhere?

This would distinguish a loan that creates an additional home from one that enables a larger bid for a home that already exists.

It would distinguish borrowing that improves energy security from borrowing required to subsidise continued dependence. It would distinguish preventive health investment from expenditure generated by preventable illness. It would distinguish a technology that reduces absolute biological appropriation from one that simply attaches a green label to greater consumption.

Financial accounts would then sit inside a wider capital account: living systems, human capability, knowledge, relationships and institutions, infrastructure and finance. Debt would be judged not solely by whether the next payment can be made, but by the complete position expected to remain after the capital has been deployed.

Better accounting changes what decision-makers can see, but it does not necessarily constrain the creation of claims. If the financial return remains attractive, banks and investors may continue funding activity that consumes the foundations upon which the wider economy depends. The signal must therefore affect the terms on which credit is created.

An Ecological Credit Standard

What if the banking system's capacity to create credit reflected not only financial risk, but the remaining productive capacity of the living economy? The proposal begins with an ecological boundary. Adjusted HANPP would measure humanity's appropriation of biological productivity against an agreed sustainable level, incorporating consumption embodied in trade and recognising genuine restoration of productive capacity.

When appropriation exceeded the boundary, an ecological credit buffer would gradually increase the capital required to support lending across the financial system. It could operate as an ecological counterpart to the countercyclical capital buffer already used to strengthen banks when financial risks build. It would not set a fixed quantity of credit or prohibit lending. It would change the cost and attractiveness of expanding financial claims while one of the principal real assets supporting them was deteriorating.

Treatment beneath that system-wide buffer could then reflect what the lending produced. Credit that increased absolute appropriation, inflated existing assets or reinforced dependence upon depleted systems would attract a higher requirement. Credit that restored biological productivity, reduced absolute appropriation or allowed the same human need to be met with materially less pressure would receive more favourable treatment.

Imagine that a new material replaced a biologically intensive input while providing the same function. Or that precision fermentation supplied protein using materially less land and water. Or that agricultural technology increased useful output while restoring soil and habitat rather than consuming them. Once the real-world reduction had been measured and verified, adjusted HANPP would fall or productive biological capacity would rise.

That verified improvement would create ecological headroom. The system-wide credit constraint could loosen because the real economy had become more capable of supporting useful activity within the boundary. Efficiency alone would not qualify: if appropriation per product halves while total consumption triples, pressure has increased. The adjustment must depend upon verified absolute change, not an intensity ratio or corporate promise.

Nor would government decide which company or technology should win. An independent institution would establish the boundary, measurement rules and adjustment mechanism. Banks, investors, businesses and individuals would remain free to discover which solutions worked.

This is not central planning. It is the creation of an honest boundary around a common asset: government establishes the rules and protects the foundation, while markets search for the route.

Several neighbouring ideas already exist. Economists have proposed environmentally differentiated reserve and capital requirements. Central banks have offered preferential funding for green lending. The European Central Bank is introducing climate adjustments to the value of collateral used in its operations.

But these approaches generally classify particular assets or protect financial institutions from climate-related risk. An Ecological Credit Standard would go further. It would connect the aggregate capacity to create financial claims with the measured condition of the living productive system beneath them.

It would also change the role of innovation. Technology would not simply provide another investment theme; verified improvements in the relationship between human benefit and biological appropriation would release additional financial headroom. The volume and terms of financial claims would no longer be set without reference to biological capacity, while human intelligence would determine how much value could be created within that limit.

HANPP would be a first operational boundary, not a proxy for the whole living economy. Additional boundaries would eventually be required for climate, freshwater, oceans, pollution and other forms of natural capital. Data would need to be timely, consumption-based and resistant to offshoring. Non-bank credit would have to sit inside the perimeter. The transition would need to be gradual enough to avoid turning ecological correction into financial collapse. These are serious design questions. They are not an argument for continuing to operate without a connection at all.

Borrowing From a Future Worth Building

Britain's borrowing cost rose because investors reassessed the price of holding financial claims upon its future. Yet we possess no comparable mechanism for determining whether that future is becoming more capable of honouring them.

Debt sustainability is assessed through debt ratios, interest costs, growth forecasts and tax receipts. All matter. But future repayment will ultimately be produced by people, energy, infrastructure, knowledge, institutions and living systems. A financial claim is only as durable as the productive capacity beneath it.

When borrowing strengthens those foundations, debt can connect the present to a more capable future. When borrowing inflates existing assets, services previous claims or compensates for continuing deterioration, it becomes an attempt to make the future carry a past it can no longer afford.

The answer is not to stop borrowing, but to distinguish debt that builds from debt that merely postpones, and to make the creation of financial claims responsive to the creation, consumption and restoration of real productive capacity.

There will always be shocks. Oil prices will move, governments will make mistakes, technologies will fail and investors will misjudge risk. A better system would not eliminate uncertainty. It would ensure that our response to uncertainty left us more capable of meeting the next one.

We have spent decades asking how much debt the future can service. We should start asking what kind of future the debt is building.

Change the signal.

Sources

The Guardian, "Long-term UK borrowing costs at 28-year high as rising oil prices trigger global bond rout", 1 September 2026.

Office for Budget Responsibility, "A brief guide to the public finances"; "Forecast evaluation report", June 2026; and "Fiscal risks and sustainability", July 2026.

Bank of England, "Money creation in the modern economy"; "Asset Purchase Facility Quarterly Report", 2026 Q1; and "Quantitative easing", updated December 2025.

Emanuele Campiglio, "Beyond carbon pricing: The role of banking and monetary policy in financing the transition to a low-carbon economy", LSE Grantham Research Institute, 2014.

European Central Bank, "FAQ on the climate factor in the Eurosystem collateral framework", July 2025, and its extension to non-financial corporate credit claims, July 2026.

This essay began as a line of enquiry developed through the work on Value2Society. ChatGPT was used as a thinking and editorial partner, testing the argument, challenging its edges and helping shape it for publication.