"I am pretty sure we are experiencing the beginning of the end of the Industrial Age"
I don't know about all that. We are accustomed to 'growth' and technological progress. It may slip back or stall. It may even simply fail to grow as fast as it has previously. But I don't think we're going back to a previous age, even if we fail to do our best to address challenges like the climate.
No, what we do risk is that millions will die needlessly. And without them we will achieve less.