The world can't agree on how to count carbon, and India could pay the price

As the EU's carbon border mechanism reshapes global trade, India's ability to measure and verify emissions is becoming critical for exporters.The line between a genuine reduction and a bookkeeping choice has blurred. (Representational Photo: AP)Almost every net-zero pledge rests on a basic assumption: that we can accurately count carbon. That we can measure what is emitted, verify what is removed, and trust that a tonne claimed on one balance sheet is a real tonne, counted once.Strip away the pledges and the press releases, and this counting problem is the foundation on which the whole edifice of climate action stands. It is also where the edifice is starting to crack. For Indian industry, it is about to stop being an environmental question and become a bottom-line one.The trouble is not a simple absence of rules. There are plenty of them: the Greenhouse Gas Protocol, ISO norms, the new international sustainability standards, national inventories under the UN climate convention, and the European Union's own methods for its border levy.The trouble is that these systems can use different boundaries, different emission factors, and different rules for what counts as a compensating carbon claim. The same emissions can sit on more than one ledger, or slip out of view by being pushed past a convenient reporting boundary. Two businesses doing much the same thing can report entirely different footprints. A worker measures carbon emissions at a factory. (Photo: Generative AI) The difference depends on where each of them draws the line.The offset market, meant to be the pressure valve of net-zero, has become its most visible weakness. A widely reported 2023 investigation examined a large sample of rainforest credits certified by the biggest standard. It concluded that more than 90 per cent did not deliver the claimed climate benefit. The certifier disputed the finding. The recurring flaws behind such credits—additionality, permanence, leakage, and verification—have proved far harder to eliminate than the early optimism about carbon markets suggested. A single credit can also be counted twice. The company that bought it and the country in which the project sits can both claim it. When the underlying numbers are this soft, the temptation to declare victory on paper while emissions keep rising in the air is strong.The softness reaches into official accounts, not only voluntary ones. Satellite and atmospheric measurements have repeatedly found substantial gaps between the methane that fossil-fuel operations report and the methane the sky actually shows. These gaps arise because official figures often rely on idealised factors that miss real-world leaks. International aviation and shipping sit under separate accounting conventions, leaving a slice of emissions outside the territorial inventories governments use to judge their own progress.The line between a genuine reduction and a bookkeeping choice has blurred. In one analysis, companies claiming to be carbon neutral were offsetting, on average, only a small share of their actual footprint. An image of a shipping vessel, illustrating trade. (Photo: AFP) The diagnosis increasingly heard from serious quarters is that the world has confused reporting with accounting. Reporting frameworks were built to disclose. They were never designed to enforce a hard ledger the way financial accounting does. What net zero needs is something closer to a GAAP for climate: a common architecture. In that architecture, a tonne cannot appear in two places, vanish between reporting boundaries, or be treated as equal to a genuine reduction without saying so.Reformers have proposed frameworks that require companies to report physical emissions separately from offset purchases. Buying credits can no longer be folded into a single flattering figure.For Indian exporters, this stopped being abstract on the first day of 2026. That is when the European Union's Carbon Border Adjustment Mechanism entered its definitive phase and turned carbon disclosure into a financial obligation. It is not a conventional tariff charged as a container crosses the dock. Instead, importers of covered goods such as steel, aluminium, cement, and fertiliser must account for the emissions embedded in them.Over time, they must surrender certificates priced against the EU's own carbon market, where the 2026 certificate price runs at around 75 euros a tonne. The reporting, however, starts now. The first full declaration and settlement cycle, however, is due in 2027. The obligation is coming, and it is measured in verified tonnes. Industrial chimneys releasing smoke into the sky in Poland. (Photo: Pexels) India is exposed out of proportion to its size in this trade. So much of its steel is made through coal-heavy blast furnaces that its covered exports carry high embedded emissions. Iron and steel make up the bulk of what it sends to Europe in the affected categories. Steel and aluminium shipments to the EU have already softened as buyers demand firmer emissions data and factor in the coming cost.How much of that reflects the levy rather than ordinary market shifts is not yet clear. The Centre for Science and Environment has estimated the mechanism could eventually add a cost equivalent to roughly a quarter of the value of affected exports. Whatever the final figure, the direction is set.Here the counting problem becomes a competitiveness problem. Under the EU's rules, an exporter can deduct a carbon price already paid at home. This is where India's own Carbon Credit Trading Scheme comes in. The scheme is now being brought into force, giving Indian firms a domestic mechanism for valuing and complying with emissions reductions rather than leaving the entire carbon cost to be imposed through the European system. But its usefulness depends on whether Europe accepts India's numbers, and there the design collides. India's scheme is built on emissions-intensity targets. A company is judged on how much carbon it emits per tonne of output.The European border mechanism, by contrast, ultimately attaches a monetary value to embedded emissions. Whether compliance under an intensity-based system can generate a carbon price eligible for deduction is an open and consequential question, and until it is established, Indian exporters risk paying once at home and again at the border. Protesters gather in the city advocating for carbon tax against carbon credits. (Photo: Pexels) The strategic point is hard to miss. Trade is priced by carbon. In such a world, the ability to measure, report, and verify emissions credibly is no longer a back-office chore. It is a passport to market access. Exporters are already finding that a verified carbon footprint is turning into the new quality audit, the document that can increasingly determine whether the sale closes. A steel plant that can prove low, audited emissions will beat a rival that cannot, whatever the sticker price. Carbon accounting has migrated from the sustainability report to the sales contract.This reframes the debate for India. The country is right that the European levy is inequitable, penalising developing economies while European industry enjoys years of free allowances and state support. But that argument, however sound, will not clear a single container through Rotterdam. What will clear it is a domestic system of carbon information robust enough to be believed abroad. It needs standard methods, installation-level data, calibrated emission factors, accredited verifiers, auditable trails, and a registry other systems can trust. India should be building that with the urgency of a trade negotiation, because this effort has quietly become one.The world has spent a decade arguing about how fast to cut emissions. It has spent far less on the humbler question of whether it can even count them reliably. The honest answer today is not yet. Net-zero is only as credible as the ledger beneath it.For India, that ledger is no longer just a matter of environmental governance. It is becoming export infrastructure. The cost of getting it wrong will be paid at the border.(This is an authored article. Divya Singh Rathore is a public policy consultant, currently working as Senior Policy Specialist with the Government of India.)- EndsPublished On: Sep 16, 2026 15:07 IST