Dr. Ir. Onno Kuik discusses the estimated benefit-cost ratios of carbon mitigation as a solution to climate change. Kuik is in agreement with most of what is written by Richard Tol on the state of the art of economic research into the impacts of climate change and climate change policies, but highlights a complementary approach based on a direct elicitation of preferences for climate change. With respect to the reported benefit-cost rations, Kuik argues that they are low because they do not reflect the substantial concerns about equity and uncertainty; and because a substantial part of the benefits after the year 2100 is not accounted for.