[it's a sadness he can full well sympathize with. people doing things only for themselves seems to be another commonality between their situations.]

Due to technology having drained the planet of nearly all its energy.

[he pauses, his frown deepening.]

And then human greed stopping what could've saved the world a long time ago without making the Journey of World Regeneration necessary.

[there's a hint of bitterness to his voice when saying that. the planet had ALMOST been saved. if not for the betrayal at the very end, oh how different things could've been.]