The encyclopedia · Strategy & Leadership · Strategic decision · 2023–2026
The EU priced the carbon in imports so polluters cannot dodge the tax by moving
The Carbon Border Adjustment Mechanism makes EU importers buy certificates matching embedded emissions, extending the carbon price to the border.
European Union (European Commission) · EU importers of cement, steel, aluminium · non-EU producers
the move
The EU prices carbon domestically through its Emissions Trading System, but that price is only paid by producers inside the bloc. An EU producer of cement, steel, aluminium or fertiliser therefore carries a cost its foreign competitor does not, and the polluting activity can simply move abroad.
The Carbon Border Adjustment Mechanism (CBAM) closes this loophole. Under CBAM, an EU importer of goods in covered sectors must declare the embedded emissions of what they import and purchase CBAM certificates for the corresponding quantity, sinking the certificates when the goods enter.
The certificates are priced relative to the ETS, so the imported goods carry a carbon cost equivalent to what a domestic producer would pay. If the exporting jurisdiction already has an equivalent carbon price, that is credited, so foreign producers are not double-charged.
This makes the carbon cost the same whether you produce in the EU or ship into it, and it shuts down the incentive to relocate carbon-intensive production to avoid the price.
why it works
- It prices the embedded emissions of imports rather than just the volume, so the carbon content of the good is what is taxed.
- Tying certificate price to the ETS means foreign goods face the same carbon cost as EU goods, closing the leakage.
- Crediting an equivalent foreign carbon price avoids punishing countries that already act.
- It extends the reach of domestic climate policy to the border without new global agreement, using existing EU legal authority.
what transfers
A price on a bad only works if you cannot move the bad across a border; extend the price to the border and credit the price already paid, so foreign and domestic producers face the same cost.
what came after
CBAM began with a transitional, reporting-only phase from October 2023 and full financial obligations from 2026. It is the first major border carbon adjustment, and it redrew the debate on how to price carbon without losing industry to cheaper, dirtier jurisdictions.
references
- The EU Carbon Border Adjustment Mechanism - An Update
- Carbon Border Adjustment Mechanism (CBAM) - the Why, What and How
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