One thing we can do is to understand denial is a normal human defense mechanism. Better to avoid triggering denial by not making people afraid of the future. And when denial exists in a person already, best to avoid arguing with or labeling that person and getting them more deeply invested in their denial. Yet, too often we’ve: overwhelmed people with fear, argued with them when they tended towards normal defense mechanisms to cope with that fear, and then labeled people so their initial reaction of denial becomes a permanent part of their identity. Amazingly that isn’t saving the planet too quickly.