The existential crisis is not whether or not the earth is catastrophically warming, or whether or not climate change is reaching or past a tipping point. The existential crisis is that a large number of humans believe there is an existential crisis without sufficient evidence. This is hubris. A large number of humans are unable to think for themselves, though they may be called experts, professors and so forth.
Recall the trials in Salem Massachusetts and elsewhere globally when supposed witches were burned. Judges including my ancestors allowed “witches” to be burned.
The existential crisis is the de-evolution of humanity by satan.
In other words, the existential crisis is the loss of faith in God and his messenger Jesus, the Christ of Nazareth. This crisis is the work of satan and his followers.
Caveat emptor