Climate change analysis differs fundamentally from financial market analysis because it requires predicting a future that will be completely unlike the past, yet we must prepare for it despite inability to apply standard regression-to-mean and statistical methods

Analyzing climate change requires a completely different analytical approach from financial markets analysis, because it involves predicting a future that is genuinely unlike the past, rather than applying statistical rules (like two standard deviations) based on historical patterns.

The political consensus around environmental action has shifted away from climate priorities, making Grantham's environmental advocacy less influential, but he views this shift as temporary and counterproductive given the evidence.