If we discover a bomb that has remained buried beneath what is now a children’s playground, we do not leave it there because “it might not explode.” If a fire breaks out in a cellar, a reasonable person looks for a fire extinguisher, calls 911, escapes from the building. Whoever says, “But there is no certainty that the fire will spread, therefore let’s calmly carry on with breakfast,” is a cretin. And yet this is precisely the attitude taken by those who argue that the problem is not serious, because we have no certainty regarding the climate.
