AeonLoop, No New Parts https://www.aeonloop.com/no-new-parts A series on how environmental assets can be packaged in terms the capital markets already understand, written for readers who are not carbon specialists. Generated 2026-10-18. 16 of 16 parts published. This file is a convenience for machine readers who want the series in one fetch. The authoritative presentation is the individual post pages, whose canonical URLs appear above each part below. ------------------------------------------------------------------------ Post 1 of 16: Framing Is Everything https://www.aeonloop.com/no-new-parts/framing-is-everything What are we collectively trying to accomplish through the production and sale of carbon credits? Most people would say "address climate change," which is really shorthand for "finance the production of carbon credits at a scale large enough to mitigate climate change." Yet almost thirty years after Kyoto created the first international carbon market, transaction volumes have never reached the scale required to accomplish that goal. This is not for lack of effort. The problem is framing. To frame an idea is to choose the words and stories that communicate its essential nature, and the frame, once chosen, dictates how the idea is received by others. A carbon credit is just an idea: an intangible representation of human activity. It is interpreted, and valued, entirely by the rules of the frame it is presented in. Carbon has historically been presented in one frame: as a tool to offset emissions. This is a consumption frame, and within it, value is created by the act of consumption. The credit is purchased in order to be consumed; the buyer retires it to eliminate an environmental liability, and that act realizes 100% of the credit’s value. The frame is valid, but when value exists for only an instant, the transaction can only be an expense, generating no economic return for anyone but the retiring user. A consumption frame cannot move investment capital. Luckily, capital markets have developed another frame to mobilize capital at scale: the investment frame, built around the productive enterprise. A carbon project is a productive enterprise: land, engineering, and verification combining to produce an output of value, the carbon credit. And in the investment frame, value is not created at retirement. It is present from the day the credit is produced, because the output of a productive enterprise encapsulates both the effort to create it and its future value at retirement. Value that exists across time can be invested in. Inside this frame, the credit is a store of value, a hedge against financial exposure to physical climate and transition risk, and an environmental benefit, all at the same time. The notion that we must choose between frames is a false dichotomy. These two frames do not disagree about whether carbon credits are ultimately consumed; both end in retirement. They differ about when their value is recognized, and who may hold and transfer that value in the meantime. Different frames do different jobs. Carbon needs to adopt a frame that existing markets can parse, because finance at the scale climate change requires can be mobilized in only one way: through a functioning, liquid capital market in carbon recognized as an investable asset. This series, No New Parts, describes how we can accomplish just that without inventing anything new. Next up: The Commodity Dead End. ------------------------------------------------------------------------ Post 2 of 16: The Commodity Dead End https://www.aeonloop.com/no-new-parts/the-commodity-dead-end Everyone treats carbon credits as commodities. Almost nobody remembers deciding to. It was a framing decision that never felt like one. Carbon's first movers came from commodity and energy trading desks, and the credit fit their instincts: a fungible unit, produced in volume, bought to be used up. A product framed for consumption received the commodity playbook, and twenty years on, that inheritance feels like a law of nature, even though it is just a choice. Electing the commodity frame has consequences. Commodities markets price every unit as interchangeable, and among identical units, their cheapest-to-deliver modality is a virtue. Carbon credits are not identical: they sit on a real, verifiable quality spectrum, and cheapest-to-deliver pricing collapses it to a single price. The deeper consequence is structural. In the consumption frame, value travels from producer to final consumer, and no one along the way is offered anything designed to be invested in. Yet oil producers raise capital from investors who will never burn a barrel. Why can they do what carbon projects cannot? Because the oil market never asked the commodity framing to do the work of the investment frame. Oil is a consumption good just as carbon is: barrels are produced to be burned, as credits are produced to be retired. When drillers needed capital before the oil flowed, the market did not reclassify oil; it switched frames and sold what had not yet come out of the ground. It sold that future production not as contracts between two companies but as financial securities: ownership interests built to be held, valued, and transferred by investors, people who will never take delivery of a barrel. That owner in the middle is not a workaround; it is the market. The barrels stayed commodities and kept getting burned. The capital came from the people in between. Carbon's forward contracts are not financial securities. A forward purchase agreement is a contract between the producer and the consumer, not a security. It brings the consumption forward in time, and value still never rests with any party other than the final consumer. It can pre-sell a project's output; it cannot give an investor anything to own. The carbon market has never chosen the frame its goal requires. A raw credit and the same credit inside a well-built security are the same environmental benefit, framed differently, with different capabilities. The commodity frame does what it is designed to do, price carbon for consumption; mobilizing investment is a different job, and no commodity frame is built for it. Building a functioning market means following the oil market's solution: selecting the investment frame and packaging carbon by its rules. In short: make carbon investable. Next up: Carbon Does Not Have Three Centuries. ------------------------------------------------------------------------ Post 3 of 16: Carbon Does Not Have Three Centuries https://www.aeonloop.com/no-new-parts/carbon-does-not-have-three-centuries Why does the carbon industry keep building new infrastructure? Because it treats its thirty-year failure to scale as the consequence of a list of technical tasks not yet completed: finish the list, the thinking goes, and the market will arrive. The deeper cause sits one level up, in the market's framing. The commodity frame is not fit for the purpose being asked of it: it was built to price and deliver product, not to mobilize investment. Nowhere has a commodity classification delivered investment function. That arrives through instruments built above the raw good, in every commodity market on earth. Spend a climate week in London, Singapore, or New York and you can watch the list being worked. The absence of a functioning market gets broken into a litany of technical problems: legal title, data standards, registry interoperability, custody, settlement, collateral, tax, cross-border transfer. A working group forms around each, and every one inherits the commodity frame without questioning it. None of this is a considered decision; it is received wisdom at work, and the list itself is the blinder: so long as failure looks like unfinished tasks, nobody steps back to ask whether completing the task list is likely to facilitate a functioning market. The question regarding a purpose-built carbon market infrastructure was never whether the individual components can be built. It is whether a global consensus on a complete new market rail can be reached and implemented on a timeframe that matters for climate mitigation finance. The past twenty-five years of trying say no, and the next twenty-five will say the same. The Dutch East India Company issued the first tradable shares in 1602, and a genuinely global market in equities took roughly three more centuries to emerge. Carbon does not have three centuries; it does not have one. The choice has been made for us. If we want a functioning carbon market in time to matter, we must adopt a frame that already exists: the investment frame. The investment frame defines proven machinery purpose-built to store and transact intangible value, and that machinery has absorbed stranger assets than a carbon credit: foreign shares held through registries much like carbon's, oil production verified by independent engineers the way credits are verified today, payment streams that did not exist when the paperwork was signed. Adapting carbon to the investment frame requires no new infrastructure. It needs new documents. Which sets the real task: to package carbon by the investment frame's rules, we first have to understand what makes an asset investment grade, as defined by the client that controls the quantum of capital a functioning global market requires: the institutional asset allocator. Next up: Manufacturing Investability. ------------------------------------------------------------------------ Post 4 of 16: Manufacturing Investability https://www.aeonloop.com/no-new-parts/manufacturing-investability What makes an asset investment grade? The standard is set by the client best able to mobilize capital at the scale a functioning carbon market requires: the institutional asset allocator. Allocators are fiduciaries, and fiduciaries view every asset through the lens of the investment frame. Nothing is investable unless it is a store of economic value that can be transacted. An investment must hold value the owner can measure, keep, and realize in money. A carbon credit’s environmental value is real, but environmental value alone cannot be stored on a balance sheet. The investment frame's requirements exist to guarantee storage and transactability of economic value. In practice, that means: Ownership that is legally settled, and that survives a dispute or a counterparty's failure. A form a regulated custodian can lawfully hold, clear, and settle. An accounting treatment that does not punish holding. A market in which a position can be financed, and exited. The first two store value. The second two let it move. None of this is exotic; the items fill the working-group agendas of every climate week. What the agendas treat as separate technical problems, however, the investment frame derives from a single principle. Measure today's raw commodity credit against the standard and the gaps are plain: no settled ownership answer, no account a securities custodian recognizes, an accounting treatment that discourages holding, and no market to finance or exit a position. The asset is not the problem. The packaging is the problem. Packaging novel assets to fit the investment frame has been done many times before. Foreign shares could not sit in domestic accounts until someone invented the depositary receipt. Gold could not live in a brokerage account until someone invented the trust share that holds it. Future payment streams had no owner until securitization was invented to give them one. In every case the underlying asset never changed; the packaging is what made it investable. Every one of those cases was harder than carbon's, because each required a new legal and regulatory concept, invented from scratch, to support it. Carbon is much easier: everything needed to package carbon for the investment frame already exists. Carbon in investable form is simply a novel assembly of non-novel parts. Investability, in other words, is manufactured. Next up: The Wrapper: Finance's Oldest Answer to Novel Assets. ------------------------------------------------------------------------ Post 5 of 16: The Wrapper: Finance's Oldest Answer to Novel Assets https://www.aeonloop.com/no-new-parts/the-wrapper A functioning carbon market requires buyers and sellers everywhere, so carbon assets must move cleanly to and from every jurisdiction. The raw commodity credit cannot do that: its legal status differs from one jurisdiction to the next, where it is settled at all. Finance met this exact problem a century ago, and it did not solve it by settling the global legal treatment of every novel asset. It put the asset in a container that investors know how to handle and that the law of every major financial center recognizes: a security. A wrapper is a container built from settled law that holds a novel asset. The investor owns the container and everything inside it. What changes is not the ownership; it is the law that governs it. The wrapper is issued under the securities law of one chosen jurisdiction, held in an ordinary custody account, and transferred the way any security transfers, through the settlement machinery every financial center shares. The container is the security. The asset inside remains unaltered. The depositary receipt is the canonical example. In the 1920s, American investors wanted foreign shares held on foreign registries, under foreign law, with no domestic custody. Nobody fixed those problems; they wrapped them. A bank held the shares abroad and issued receipts against them at home, receipts governed by domestic law and held in domestic accounts. The share stayed foreign; the receipt was investable. The same move later put gold inside brokerage accounts: the metal sits in a vault, a trust holds the vault's contents, and investors hold shares of the trust. Notice what the wrapper does with unsettled questions. It does not answer them; it defers them for as long as the asset stays inside. Whatever is uncertain about the underlying is confined within the container, while the investor faces only the settled law of the interest they hold. A carbon credit is an intangible entry on a registry, its property status settled in a few jurisdictions and open in most, unable to move the way a global market requires. That is precisely the profile the wrapper was built for. Place the credit inside a container whose law is settled, and the institution owns the credit through a security it knows how to hold, while every open question stays deferred inside. The credit stays a commodity. The investor holds a security. And when the time comes to retire it, the credit leaves the wrapper intact, to do what it was produced to do. The wrapper is just one part of the machine. Finance spent a century building the rest, and carbon inherits all of it: the structures, the case law, and the decades of operating history. Next up: A Century of Precedent. ------------------------------------------------------------------------ Post 6 of 16: A Century of Precedent https://www.aeonloop.com/no-new-parts/a-century-of-precedent Emissions are counted at the corporate and national levels, not the personal one. The incentive to retire a credit sits with entities, so demand is entity-scale, and the capital that finances production at climate scale is institutional too. Carbon credits have to be investable for institutions. Institutional investability does not hinge on a settled legal definition of the carbon credit's environmental benefit. It depends on how carbon is packaged under securities law. At first glance, two key characteristics of the carbon credit appear to prevent that packaging: it is an intangible right recorded on a registry, and its value depends on performance still to come, with every risk attached to that performance bundled into a single unit. Securities markets solved each of those, decades ago. The first was owning something intangible. A royalty interest, bought and sold for more than a century, is a share of production the owner never sees or possesses; a patent is property that exists only in law. By the late 1960s, with the securities industry drowning in paper certificates, the law changed: an entry in a book is not evidence of ownership, it is the ownership, transferable by entry, enforceable against the intermediary holding it, and capable of sitting in a custody account. A carbon credit is an intangible of exactly this kind. The second was dividing risk, not just cash. An equity share is a bundle: whoever holds it takes every risk the enterprise carries, priced into a single number, and the only way to shed any part of it is to sell the whole share. The insight that arrived in the 1970s was that one stream of payments could be split into claims carrying different risks. Pool ten thousand mortgages and the payments are unchanged, but a senior claim is paid first while a junior claim absorbs the first losses and earns more for taking them. A raw credit carries delivery risk, authorization risk and permanence risk, and each of those can be placed with a holder equipped to price it. These two are a sample of what a century of solving market access problems produced, both of them decades old, tested in court, and running at scale. They also do not work in isolation. Each becomes useful when it is built into an instrument: a container of settled law, issued in book-entry form, referencing verified credits, structured so each holder takes the risk it wants, and sold to institutions through channels built for that purpose. Carbon is simply the latest novel asset to arrive, and it does not need new solutions. It needs the existing ones assembled properly. Next up: Custody, Clearing, and Settlement. ------------------------------------------------------------------------ Post 7 of 16: Custody, Clearing, and Settlement https://www.aeonloop.com/no-new-parts/custody-clearing-and-settlement Before an institution can buy a carbon credit, it needs to answer three questions: (1) If the firm holding my asset fails, do I still own it? (2) Between agreeing a trade and receiving it, who carries the risk that the other side disappears? And (3) at what moment does the transfer become final, with payment moving against it rather than after it? Securities markets have dedicated institutions for each. A custodian holds the asset, segregates it from its own balance sheet, is capitalized and supervised for that role, and is liable when it fails. A clearing house steps into the middle of the trade and becomes the counterparty to both sides, so if one party disappears before delivery, the other is still made whole. Settlement fixes the moment ownership changes, delivery against payment, final under law rather than by agreement. The carbon market only has the registry, which does all three jobs by default. The consumption frame produced a market that only ever needed a record keeper, so the industry built one. The registries are candid about the consequences of this choice, right in their own terms of use. On custody: no guarantee of legal title, no obligation to inquire into it, no fiduciary relationship with the account holder, and total liability capped at the fees paid over the past year. On clearing: no responsibility for the performance or settlement of any transaction, and none for the acts of your counterparty. Nothing stands between the two sides of a trade. On settlement, sharper still. Transfers are settled by the parties themselves under separate agreements; payment never moves on the registry, so one side goes first and hopes. And the transfer is not final: the registry reserves discretion to reverse a movement of credits, and the account holder agrees in advance to no remedy if it does. A book entry that can be undone is not settlement. Institutions cannot waive these protections; their own rules require them. Wrapping the credit, as the last post described, is what lets those securities market protections attach to it. The credit stays in the registry, in an account controlled by a regulated custodian, and the custodian makes the representations the registry declines: that the asset is there, that it is segregated, that it is unencumbered, and that the custodian answers if any of that proves untrue. Entitlements to it are cleared and settled on securities rails, delivery against payment, final at a defined moment under law. Proper capital market formation in carbon requires that registries be strictly limited to the one job they are built for, and that custody, clearing, and settlement pass to the institutions built to perform them, under supervision, with capital behind them and liability that cannot be disclaimed. Next up: What a Carbon Registry Is Actually For. ------------------------------------------------------------------------ Post 8 of 16: What a Carbon Registry Is Actually For https://www.aeonloop.com/no-new-parts/what-a-carbon-registry-is-actually-for A carbon registry properly has two jobs, and only two. It is the system of record: the place a credit is issued with a serial number, held in a named account, and finally retired. And it controls what is allowed onto that record: the methodologies, the verification requirements, the rules a project must meet before a single credit exists. Those two jobs are not small. Every claim made anywhere in the market traces back to them. If the record is wrong, nothing built above it is worth anything; if the standards are weak, the record is a faithful account of something worthless. Done perfectly, they are the foundation of the asset class. Done alongside custody, clearing, and settlement, as they are today, they are done at the expense of market formation. The disclaimers registries write are not carelessness. They are an accurate statement of what a standards body is built to do, which is exactly why a standards body should not be holding the asset, clearing the trade, or standing in the way of settlement. So there is a request here for the registries: amend your terms of use, and step out of the three jobs that require capital, supervision, and liability you were never built to carry. Give up the discretion to reverse a transfer once made: nothing an operator can undo at will is ever treated as settled. Recognize an account controlled by a regulated custodian as of right, not as a favor granted case by case. And drop the consent gate on related instruments: whether a security may be built referencing a credit is a question for securities regulators and counsel, not for the body that sets methodologies. None of these constraints is a dependency; they can be architected around. The market simply forms faster, and cheaper, if they are lifted. Limiting the scope of services this way also settles the question of which registry wins, by making it irrelevant. A custodian holds positions across many venues; a clearing house does not care which record system the underlying sits in. Put the securities layer above the registries and it spans all of them: an institution holds a portfolio drawn from several records in one account, priced on one basis, settled under one set of rules. Every registry keeps its standards, keeps its record, and competes on the quality of both. None has to win, and the market stops waiting for one to. Two jobs, done perfectly, everything else handed to specialty institutions. That is a larger role for registries, not a smaller one, because higher transaction volume means more capital priced off the record they provide. With the registry's role focused on what market formation requires, we turn to regulatory questions. Next up: One Genus, Two Species. ------------------------------------------------------------------------ Post 9 of 16: One Genus, Two Species https://www.aeonloop.com/no-new-parts/one-genus-two-species The last three posts described carbon-linked financial instruments and the institutions that make them work. Instruments also need a legal foundation. Does carbon have one? It does, and there is a mature example. The European Union created the ETS market twenty years ago, and allowances have traded at scale ever since, held by institutions and financed like any other position. Received wisdom holds that this proves nothing, because allowances and credits are not the same. An allowance is permission to emit a tonne, granted before the fact. A credit is evidence that a tonne was removed or avoided, earned after it. An allowance is complete when issued; a credit carries an obligation that runs for years, because the tonne has to comply with international permanence requirements. All of that is true, and none of it settles anything. Oranges and lemons are different fruits. But they are distributed with common infrastructure; they travel in the same crates, in the same refrigerated holds, on the same ships, through the same ports, because that machinery was built for their common genus, Citrus. Credits and allowances are likewise two species of one genus. Both units are scarce because a sovereign decided they would be: an allowance because a government legislated a cap, an authorized credit because the exporting country gave up its claim. Both are serialized entries in a registry. Both are denominated in one tonne of carbon dioxide equivalent. Both can be retired exactly once and are worthless thereafter. Regulators and standards bodies already deal with carbon at the genus level. The EU classifies emission allowances as financial instruments under MiFID II. The CFTC treats both species as commodities, and in 2024 issued guidance for listing voluntary carbon credit derivatives. And in May 2026, FASB put allowances and offset credits under one definition, with a single measurement model. None of that makes a carbon credit a security, and it does not need to. What it establishes is narrower and more useful: nothing about a member of the carbon genus is legally intractable. It can be owned, traced, held inside supervised market structure, and accounted for like anything else. One species difference does matter. An allowance is created by one legislature for use inside its own legal system. A credit, on the other hand, is created in one country to be used by a buyer in another, and no sovereign's authority covers that. So a credit must inherit its legal standing from two different sources: from the wrapper, which puts the investor's interest under one settled law, and from a covenant, given by the country of origin, that travels with the tonne. Next up: The Corresponding Adjustment Is a Sovereign Covenant. ------------------------------------------------------------------------ Post 10 of 16: The Corresponding Adjustment Is a Sovereign Covenant https://www.aeonloop.com/no-new-parts/the-corresponding-adjustment-is-a-sovereign-covenant Every country in the Paris Agreement has a Nationally Determined Contribution: a pledge to cut its emissions to a stated level, measured against a national account and denominated in tonnes of CO2 equivalent (tCO2e). When a country authorizes a carbon credit for any use other than toward its own NDC, it applies a corresponding adjustment. It adds that tCO2e back into its own account, as though the reduction never happened. The country gave up the right to count that reduction as its own, so a third party can use it. In finance, a promise of that kind has a name: a covenant. A covenant is a binding undertaking written into an instrument, a commitment to do or refrain from doing something, that a counterparty relies on and prices. The corresponding adjustment is exactly that: an undertaking by a sovereign, recorded and reported internationally, not to count adjusted tCO2e toward its own NDC. That undertaking prevents what the industry calls double counting. Without it, the host country counts the tCO2e against its own net emissions and the buyer counts the same tCO2e toward theirs. Two owners for one tCO2e means no asset, because the first thing an owner must establish is that nobody else owns the same thing. The wrapper puts an investor's interest under settled law; the covenant makes sure what sits inside belongs to them alone. The promise is observable. Under Article 6, the host country authorizes the units, applies the adjustment when they are first transferred or used, and reports both in its annual information and its biennial transparency report, where an international expert review team checks the arithmetic. And sovereign promises are priced every day by markets. Bond yields, credit default swap spreads, and currency markets all answer one question continuously: how likely is this government to do what it said. Political risk insurance, investment treaties, and export credit agencies cover the case where it does not. None of that machinery asks what the promise is about. A covenant to correspondingly adjust a credit is underwritten the same way as a covenant not to expropriate any other asset. The covenant brings carbon inside a paradigm that already works, with a century of documentation, pricing, and remedy behind it. A correspondingly adjusted carbon credit is a pair of promises: a sovereign's covenant not to count it towards its NDC, and a permanence obligation that prevents its reversal. Those promises are the value of the unit and the basis of its environmental benefit, because a credit counted twice is no benefit, and a credit reversed a decade later forfeits its value. Together they are what an investor owns, what an underwriter prices, and what the instrument wraps. Next up: The Sovereign Authorization. ------------------------------------------------------------------------ Post 11 of 16: The Sovereign Authorization https://www.aeonloop.com/no-new-parts/the-sovereign-authorization Covenants underpin every institutional-grade financial instrument. A bond is a promise to pay wrapped in undertakings about what the borrower will and will not do (the covenant), and that covenant is what a buyer actually diligences. In carbon, the covenant is defined by Article 6 of the Paris Agreement, and it lives in a specific document: the Letter of Authorization, or LoA. An LoA is a signed instrument issued by a host government under a published framework. It identifies the project that produces the units, commits the government to apply a corresponding adjustment to its NDC, and states what the units may be used for. That is the part that matters to capital. Diplomacy cannot be diligenced. A document can. Counsel reads it, an underwriter prices it, a committee approves or declines it, each conducting the same evaluation they have conducted thousands of times on other instruments. The LoA moves the sovereign promise out of the realm of intention and into the realm of documentation, which is the only realm institutional capital operates in. Without an LoA, a credit stays home and can be counted toward the host country's own NDC target. The LoA opens the other use cases: toward another country's national target, for other international mitigation purposes, which is where aviation sits under the CORSIA scheme, and for other purposes, the category covering a company retiring a credit against its own claims. Critically, the authorized use travels with the unit. Whoever holds it, wherever it sits, the claim its final holder may assert is fixed by the document. That is what makes the unit a store of value: its worth does not depend on who holds it, so it can be held, financed, and transferred without the claim eroding. The LoA also answers a question that has dogged carbon for a decade: how does a unit issued under one country's authority mean anything in a global market? Because the covenant attaches to the unit rather than to a place. The accounting happens in the host country's own books and is reported internationally, so the unit carries its status wherever it goes. One thing the Paris Agreement does not supply is a courtroom. An LoA is an undertaking recorded and reviewed, not terms a holder can enforce. That changes when the authorization is carried into the wrapper, which is issued under a chosen law and whose terms are enforceable in it. So a carbon unit becomes investable through the interaction of two documents. The LoA supplies the covenant and defines the claim; the wrapper supplies the law under which it is held and the terms are enforced. Neither does the job alone. Assembled, the parts give us a standardized financial instrument that trades on the existing rails of the global capital markets. The rest of this series describes what that machinery fixes, one market failure at a time. Next up: The Accounting Earthquake. ------------------------------------------------------------------------ Post 12 of 16: The Accounting Earthquake https://www.aeonloop.com/no-new-parts/the-accounting-earthquake Post 4 set out what an institution requires before it can hold a particular asset. One of those requirements was an accounting treatment that does not punish holding it. Raw carbon credits are subject to an accounting regime so punitive that it is effectively impossible for a fiduciary to justify holding them. In May, FASB issued Topic 818, the first authoritative US standard for environmental credits. A credit is recognized as an asset only if one of three qualifying uses is probable: settling a compliance obligation, selling it, or transferring it to someone else. Anything else, including credits bought for a voluntary claim, is expensed when purchased, and cannot become an asset later even if circumstances change. Credits held for sale are carried at cost less impairment: written down when the price falls, never written up when it rises, and the write-downs cannot be reversed. That is worse than the expense treatment, a known cost taken once and planned around. This is an asset whose reported value can only fall. An asset whose carrying value can only fall is not an investment, and no fiduciary can hold one. Allocators and committees decide on reported results, and there is no argument to be made for something that reports badly by rule, however well it performs. The raw carbon credit is not an unattractive investment. It is not an investment at all. So the question becomes what form institutional carbon exposure can be held in, and the answer was described in Post 5: the wrapper. The wrapper is a security. The credit inside it stays a commodity, unaltered. But the thing the institution owns is a security, and a security is a financial asset, and financial assets are carried at fair value with changes running through the accounts. Changing the credit's form changes the accounting treatment, and the accounting treatment controls what institutions report. Nothing about the underlying moves: the environmental benefit is the same benefit, the sovereign covenant is the same covenant, the asset is the same asset. What changes is that it can now be carried on the balance sheet at fair market value, and carrying value on the balance sheet is how investment performance is measured. Institutions that hold carbon will hold it in the form of securities, because that is the only form that lets them take the position and report the underlying carbon asset at its true fair market value. The covenant, the wrapper, and a workable accounting treatment are now in place. What that combination makes possible is market making: someone willing to quote a price in both directions and hold inventory in between. That is where transactions come from, and where liquidity comes from. Next up: Who Makes the Market? ------------------------------------------------------------------------ Post 13 of 16: Who Makes the Market? https://www.aeonloop.com/no-new-parts/who-makes-the-market Ask a carbon industry roundtable how to get more liquidity and the answer comes back: more buyers. Ask a capital markets trader and the answer is: more market makers. The more-buyers answer is a statement about aggregate demand, not liquidity. It describes wanting a higher price, not a deeper market. Liquidity is the ability to transact in size, at a visible price, at the moment you choose, and it does not come from the number of people who want to buy or sell. It comes from institutions that stand between them: banks and trading houses with balance sheets large enough to quote a buying price and a selling price continuously, and warehouse the inventory that leaves. Every market you think of as liquid has them. With them, a price is standing there when you arrive. Without them, you find a counterparty first and discover the price second. Market makers want this business: volume is revenue, and a new asset class with structural demand behind it is what a desk looks for. What no desk can do is quote a price in something it cannot hold. The position has to be financeable. It has to report honestly, because inventory that cannot be marked is inventory nobody carries. And it has to be exitable into demand still there tomorrow. Carbon has almost no market makers because raw credits fail the first two tests: the position cannot be safely held or financed, and cannot be reported at what it is worth. In security form both are answered, and intermediaries can take principal risk in carbon for the first time. That leaves the third test: the buy side. Retirement demand, the more-buyers demand, is legislated. Compliance schemes require surrender, aviation requires offsetting under CORSIA, and national targets increasingly rely on authorized units. This is not a speculative bid that evaporates in a drawdown. It is a legal obligation with a known implementation roadmap. The standard objection to financialization is that intermediaries add cost without adding climate benefit. That causation is backwards. Start with the buyer. A compliance buyer needing a million tonnes cannot assemble them by calling projects one at a time. Somebody must be holding inventory when the order arrives. You cannot retire what you cannot find. Now the seller. A developer that cannot sell its production, or borrow against it, does not build, and those tonnes are never produced. You will not develop what you cannot sell. Both are solved by the same entity: the market maker. Without someone in the middle carrying inventory, buyers cannot source at scale and producers cannot finance at scale, which is the market we have today. Nor do credits linger: every one a compliance buyer takes is retired permanently, and a market maker was holding it on the way. Intermediation does not delay retirement; it is the condition for retirement at scale. Next up: What About Permanence Risk? ------------------------------------------------------------------------ Post 14 of 16: What About Permanence Risk? https://www.aeonloop.com/no-new-parts/what-about-permanence-risk Every conversation about nature-based carbon ends in the same place. What if the forest burns, or the soil is ploughed, or the mangroves are cleared? What if, in other words, a carbon claim is not permanent? Finance has a name for a hazard that cannot be eliminated but can be measured. It calls it risk, and the risk of non-permanence (called reversal risk) is not a reason to stay away from carbon. It is what capital markets exist to allocate and price. Hold a raw credit and the risk is yours, silently. No document says so, no price is attached, and there is no way to hand it to anyone else. If the environmental benefit is reversed, the credit forfeits its value. The risk is not absent. It is unpriced and unassigned, the worst of both worlds. That changes when carbon is wrapped inside a financial security, because the sovereign's covenant can then be carried into terms that are binding. An authorization is negotiated, so it can say who stands behind a reversal event and to what extent. One country may accept full replacement, another may share it with the producer, and a third may accept none, with the buyer pricing the difference. Nobody has to wait for a single global rule on reversal liability, because each transaction settles the question for itself, and the market compares the answers as prices. There are two variants of reversal risk. One is physical: climate change and anthropogenic land use change. The other is sovereign: the country that gave the covenant does not honor it. Both are already measured by people who do it for a living. Physical reversal is a hazard question, and the catastrophe models that price wildfire, drought, and storm exposure for insurers grade it here. Sovereign reversal is a credit question, priced the way a country's debt is priced. Because both are documented, both can be rated, so a buyer sees the physical risks associated with a given carbon unit and the standing of the sovereign behind it, and pays accordingly. Both can also be insured: reversal cover has the same shape as crop failure or property damage, and political risk cover has existed for decades. Whoever holds the position decides how much of either risk to keep and how much to lay off. None of this stops a reversal, but it makes the consequence of one an allocated, priced, survivable event rather than a silent hole in a portfolio. That is what makes permanence quotable. A market maker will not warehouse a risk with no owner and no price. It will warehouse one that is allocated in proper documentation, insured where needed, rated, and marked like any other position. Which is the whole argument. The parts exist, the law is settled, the accounting works, the demand is legislated, and permanence risk can be allocated. What is still missing is a price that reaches into the future. Next up: Where Is the Curve? ------------------------------------------------------------------------ Post 15 of 16: Where is the Curve? https://www.aeonloop.com/no-new-parts/where-is-the-curve Ask McKinsey what carbon will be worth in 2031 and you get a projection. Ask a copper trader the price of copper in 2031 and you get a screen: a page of live prices, each one a commitment somebody will honor today for metal delivered years from now. A projection is an opinion. A screen is a market. That difference is why copper mines get financed and carbon projects get grants. That page of prices is a forward curve, and it is what turns future production into present money. A lender discounts against it. A producer hedges into it. A board approves capital because of it. Every market that finances production years before delivery works this way. Carbon has prices without a curve. There are thousands of spot prints, bilateral deals with confidential terms, and index estimates assembled from surveys. What there is not is a set of dated, tradable commitments that anyone can see and transact against. Prices are not a curve. So why has a forward curve yet to form for carbon? A curve is built from standardized forward commitments changing hands, and a forward commitment needs a deliverable: a defined thing, uniform across units, that the seller can be made to hand over and the buyer will accept without renegotiating what it is. Carbon has never been packaged that way. Sold raw, every unit is its own project, methodology, vintage, and jurisdiction, so every trade becomes a negotiation about the underlying rather than about the price. This is the packaging problem we have been dissecting in this series. A security is a standardized thing by construction: the wrapper defines what the holder owns, uniformly, whatever sits inside it. Credits from different projects and different vintages can be assembled into defined cohorts, and it is the cohort, not the credit, that becomes deliverable. Which is how every other market solved the same problem. Once cohorts trade forward, a project developer asking what carbon is worth in 2031 is no longer asking for an opinion. They are asking for a quote, and somewhere a dealer is willing to give one. That quote is what a lender lends against, and it is the difference between a project financed on its own production and a project waiting on a grant. Quality shows up here too, and only here. When everything trades as a single undifferentiated category, better credits are discounted along with the rest. Separate cohorts carry separate curves, and the gap between them is what a premium actually looks like: a number, visible to everyone, that a high-quality producer can point at and a buyer is willing to pay. The investment frame is what makes a forward curve possible, and the security is how the frame is applied. That is the last part we need. Next week, we'll assemble the entire instrument in one place. Next up: Putting It All Together. ------------------------------------------------------------------------ Post 16 of 16: Putting it all Together https://www.aeonloop.com/no-new-parts/putting-it-all-together Fifteen posts ago this series made a single claim: carbon has not been investable because of a framing error, not because it is incompatible with capital markets. A carbon credit can be thought of as something bought to be consumed immediately, or as something produced by an enterprise and held until it is consumed later. Both end in retirement. Only the second can be invested in. The consumption frame gave carbon the commodity treatment it still carries, and not the investment treatment that is delivered by financial instruments built above the raw good. The industry's reflex is to build new rails instead, ignoring the timelines inherent to that approach. A global market in equities took three centuries to form. Carbon does not have that luxury. So rather than carve a new hole for the carbon peg, we must whittle the peg to fit the hole that exists: the securities market. A wrapper is a container built from settled law that holds a novel asset, and finance has been building them for a century: owning something intangible was solved in the 1960s, dividing risk from cash in the 1970s. Custody, clearing, and settlement run on rails that have operated for fifty years. Scope the existing carbon registries back to their two essential functions, the record and control of validated carbon claims, and everything above them works. Carbon units are not a legal novelty either. Allowances and credits are two species of one genus, and regulators and standards bodies already deal with carbon at that level. What a credit needs beyond that is a covenant, and it has one. The corresponding adjustment, given by a host country in a Letter of Authorization, is a sovereign undertaking not to count what it has sold. That covenant travels with the unit, and it becomes binding when it is placed into a security issued under a chosen law. From there the rest follows. Accounting rewards holding the security and punishes holding the raw credit. Legislated retirement demand supplies a buy side that does not evaporate. Permanence stops being an unanswerable objection and becomes an allocated, rated, insurable risk. Standardized cohorts give a forward commitment something to deliver, and a forward curve forms. None of it required inventing anything. Every part is decades old, tested in court, and running at scale somewhere else. Carbon in investable form is a novel assembly of non-novel parts. We should adopt this approach, stop building new rails, and start writing the documents that put carbon on the ones that already run, measuring every initiative against what an institutional allocator requires before it can invest. If we want to hedge transition risk, finance a conditional NDC commitment, raise revenue for sustainable development, or adapt to the changing world, all of it depends on a functioning carbon market. That is what AeonLoop helps build.