Credit rating agencies analyze how ESG risks and opportunities affect a company'screditworthiness, which is directly linked to itscost of capital. The CFA UK ESG Investing Training Manual explains that ESG factors can materially affect an issuer's ability to meet financial obligations and thus alter the perceived credit risk. This risk perception translates into the rate at which the company can borrow --- its cost of capital.

'Credit rating agencies incorporate ESG into their analysis by assessing how environmental, social, and governance factors might influence the issuer's ability and willingness to meet financial obligations. For example, material environmental risks could impact a firm's future cash flows, which would in turn influence its cost of capital.'

There is no indication in the CFA UK ESG curriculum that ESG credit scoring is used to test for credit default swaps or green bond eligibility directly. These instruments may reflect ESG risks indirectly, but they are not the focus of ESG credit scoring.