Uncertainty hampers use of scenario analysis

Scenario analysis may be a key part of climate-related disclosure obligations, but uncertainty about how to use these tools represents a challenge for investors, says Fitch Ratings. It says issuers, regulators, and financial institutions are increasingly using scenario analysis to evaluate companies’ physical and transition risks due to climate change. “For investors, scenarios are becoming a critical tool for managing climate-related risks and for informing portfolio strategies,” it says.

Uncertainty hampers use of scenario analysis

Scenario analysis may be a key part of climate-related disclosure obligations, but uncertainty about how to use these tools represents a challenge for investors, says Fitch Ratings. It says issuers, regulators, and financial institutions are increasingly using scenario analysis to evaluate companies’ physical and transition risks due to climate change. “For investors, scenarios are becoming a critical tool for managing climate-related risks and for informing portfolio strategies,” it says. However, the limitations of scenario analysis, and a lack of understanding about the results is hampering its utility. “Our research shows that mainstream climate scenarios are open to misinterpretation and sometimes underestimate climate risks, which could create interpretation risks for investors,” its report says. Specifically, the firm said investors often don’t fully comprehend the limitations of scenario analysis. Seemingly similar pathways ‒ e.g. 1.5°C scenarios ‒ can produce wide variations in projected demand for particular technologies, depending on the scenario’s underlying assumptions and the models used. This lack of standardization makes it difficult to compare results between companies.