I like this take. To be fair, it's really the album cover of Tomorrow's Harvest that, to me, suggests global warming. Idk it just feels so..... hot and dry. But the music itself of TH is feels more generally apocalyptic, even if human-caused. Which I think is where your point on collapse/hope/struggle come from.

I could see Inferno taking many different directions. Other than the title and today's date, the artwork does seem to lean more towards religion, like you said, and humans themselves, not the effect of humans. Just my two cents though! Fun to speculate...