When it comes to saying that the Earth is in peril, too many people are deniers and non-caring to be dismissed. The diversity of human attitudes presents a quandary.
People are polarized in their viewpoints. The deniers, the uncaring, together with the guilt-ridden believers are an unholy combination. We can ask whether there is any commonality among the groups so as to make progress towards an effective response to the changing condition of the Earth.

For one thing, most people feel compelled to protect themselves with some sort of contingency planning for unknown future events. What is to be the contingency plan for possible destruction of the Earth? Sometimes life insurance is seen as meeting contingency needs, which in this case might be thought of as a life insurance policy on the life of the planet. However, if planet life fails, collection on the policy will be difficult.
Do we build survival shelters so we can continue to live through an apocalyptic era, surviving on a spent planet, with the few remaining people using diminished earth resources? These are questions too big for one short discussion. Some visionary answers can be found in movies of apocalypse and post-apocalypse life -- if you can accept them.