I could not find direct quotes from Hideaki Anno regarding a direct link between Evangelion and what was then called global warming. But I keep finding interesting parallels I’m documenting here.
Something is already in the text of Neon Genesis Evangelion: a world-altering climate change event happened already. It’s the Second Impact that melted Antartica and made that whole region of the word devoid of life.
Children, not adults, are called forward to fight for the future of humanity despite not knowing or being responsible for the events that triggered the end of the world.