What's difficult about this approach, though, is that it requires the portfolio manager to be actively knowledgeable about climate risks in their day to day stockpicking. Otherwise, it's like asking somebody to develop a sixth sense. The typical manager is already looking at a lot of often contradictory variables: earnings, earnings growth, balance sheet leverage, and industry specific numbers like number of users, ARPU, churn, amount of real estate owned, barrels of proven reserves, etc. etc. How does a new variable like carbon risk loading fit into it? What's the time frame of carbon risk playing out, and how much of an impact would it have?