Whether you agree about the relative scale of cold and heat deaths doesn't matter. I say that all lives matter, so lives lost due to heat and lives saved due to heat should BOTH be included in the calculation. And, yes, I'm serious that a life saved due to heat matters just like a life lost due to heat. Are you arguing that lives lost due to warmer temperatures matter, but lives saved by warmer temperatures don't? Or just that the latter problem, say homeless and poor people dying of the cold, is too trivial in your opinion to matter in public policy discussions?