The European Union’s Carbon Border Adjustment Mechanism (CBAM), effective from October 2023, is a first-of-its-kind climate tariff on imported goods. It aims to prevent carbon leakage—the relocation of carbon-intensive industries to countries with lax climate policies—by levelling the carbon cost between EU producers and foreign importers.

CBAM marks a paradigm shift: carbon becomes a tradable cost in international commerce. Countries and companies that fail to decarbonize will face rising export penalties, while those investing in sustainability gain a global advantage.
“CBAM sends a powerful signal: the cost of inaction is now embedded in the cost of exports.”
— Earthsun Analysis Team