Human-caused climate change is as much an established fact as is possible in this field. Alternative "theories" are as much as an established non-fact as is possible in this field. Here are 428 references on the subject which will need to be disputed in order to change that fact https://en.wikipedia.org/wiki/Climate_change#References (not actually 428 because there's multiple references to the same paper but in different locations, etc. You get my point.)
Despite actions like UK declaring a climate emergency, the Paris Agreement, etc, it's not clear to me that the world is going to take the actions necessary to prevent massive climate-change related disasters. When those disasters take root and trigger refugee crises the likes of which human society has never encountered, any green-energy and green-material initiatives are probably out the door as nations turn to the cheapest, fastest, shortest-term energy and materials solutions possible to either handle the influx of refugees or the war materials needed to turn them away.
What are you seeing that makes you think this won't be the case? Are you seeing improvements in green technology and believe those will be deployed quickly enough to curtail climate change? I'm skeptical: we had a huge reduction in emissions lain at our doorstep by COVID and for many industries work continued unabated as we did our jobs from home, but irrational established mentalities are forcing emissions back up by making people come into the office at threat of firing. If green energy, green materials, or sustainable practices offend established sensibilities in the same way, why would they take root?