The European Central Bank (ECB) will apply climate-risk factors to non-financial corporate credit claims. These claims consist of bank loans pledged as collateral for central bank funding. This expansion increases coverage from a small percentage of corporate bonds to 29% of all pledged collateral.

The ECB will assign lower values to loans from companies with high climate-transition risks. This valuation change increases the cost for banks to hold and finance high-carbon assets. The policy imposes a direct financial penalty on lending to polluters to protect the financial system from climate shocks.

Economists view the expansion as a major step that closes a significant regulatory gap. The rule forces financial institutions to assess climate risk across a larger portion of their lending portfolios. This move integrates climate concerns directly into core monetary policy operations.