probabilititys very low, the magnitude of cost, the impact on our lives ifif our house w was to burn dowown is iimmeasurable. mitigating climae chchange, doining something abot our r carb e emissions is s a planetary insurancnce policy, ,d in guiding g the terms of that iinsurance p policy, we e need e focusing on some of f those pototential morore extreme catastrophicic outcomes.s. if te ipcc systematically downplays those outcomes, thenen it does't seserve thatat larger process of societal risk assessment as it should. qualitatively speaking, if you look at impacts on human health, water availability, human water resources, food resources, land, the global economy, pretty much every sectoror of our lives, of human civilization, what you see is a business-as-usual fossil fuel burning scenario, by the end of the century gives us highly y negative impactsts acrs the boards in all those categories. i forgot to mention biodiversity, a potentially large-scale extinction of species. some of these we can ququantify ecoconomically or w n try to. some of them we can't even qualify how important the