It's a lot bigger of an issue than merely the climate crisis. Regarding trying to prevent it (and related issues), we would not only needed to have started 50+ years ago (when it was already clear what was happening), but the incentives in our economic system just do not work in such a way to allow for all the capitalist decision makers to all collectively stop turning a profit. The system is somewhat like rolling a boulder up a hill, it must continuously push it up, or the boulder will roll back down, a little, or all the way. Once growth becomes imposssible/infeasible due to resource limitations, this will happen eventually anyway. But if the machine stops churning, it will simply happen sooner.

Regarding the various aspects of the unsustainability of our society and how it is reaching its limits, this wiki subsection is a very good read (and the rest of the wiki page as well, separated into concrete sections, and links to lots of source materials):

https://www.reddit.com/r/collapse/wiki/index#wiki_what_would...