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Blog finds that climate risk rarely causes ECB collateral to be downgraded

In a Friday blog post, the ECB stated that the European Central Bank already factors climate-related risks into the assessment for collateral used when borrowing money from the bank. However, this rarely results in credit rating changes.

In its 2021 climate action plans, the ECB made the integration and assessment of climate risks a priority. The bank also expects that climate risk will be factored in to the credit ratings of assets provided by banks when borrowing from the central banking.

The blog post, which is not necessarily the ECB, argued that "while climate risks are widely acknowledged, they rarely result in rating changes." "Several persistent obstacles still limit the full integration of climate risk into credit rating."

Both the ECB's own internal credit assessment systems as well as external rating agencies are used to assess climate risk, but neither has had a significant impact on collateral value.

The blog stated that when using its own system, the percentage of credit ratings that are affected by climate risk is less than 4%, and most adjustments only affect one rating grade.

The blog post stated that in the case of external agencies environmental, social and governance factors account for approximately 13% to 20% of all rating decisions across the major agencies. However, climate change-specific ratings are only 2% to 7 percent of the total.

The blog stated that while actual risk might be higher, it is difficult to assess because banks may mask the vulnerability of certain debtors. Risk mitigation strategies can also reduce their perceived risk. Rating horizons tend to be short and medium term, but climate risks are usually long-term.

It argued that "Furthermore reliable, granular data on climate change remain scarce," especially for smaller issuers. Reporting by Balazs Coranyi Editing Tomasz Janovowski

(source: Reuters)