False economies:(. Having posted several times in the realclimate forum, I sense a culture, one feature of which is economic naivety. When anyone new posts, many forum contributors feel that you are either for them or against them. For a serious answer to a challenge, it seems that you have to structure it such that you take their "climate world view" as gospel for a starting point.
So far, my challenge to the scientists there to the scientific validity of attributing deaths due to weather events (demonstrably a chaotic system) to changes in climate remains unanswered. Causality is on tenuous ground here, unlike geologic temperature records, extreme weather event statistics are available for an infinitesmally small time period. It is impossible to know whether extreme weather events (drought,floods,hurricanes) are more or less prevalent in previous times of higher CO2 and temperatures. If ocean temperatures were deterministically generating them, they should be more easily forecast year by year using ocean thermometers than they are. It is entirely plausible that high enough temperatures may suppress more extreme events than are caused.