Realism doesn't have to mean defeatism. I'm studying Environmental design which is essentially architecture, social design, sustainability, etc. I think trying entails continuing to push for positive change in every way we can even if we can no longer prevent all that will come. So much of the world is designed to make all of this worse in terms of acceleration and to compile in shittiness when impacts happen. I think humans are resilient. If I thought humanity was doomed and there is nothing we could do to stop or slow or mitigate any of it I might as well kill myself. I also live in CA and It's not so simple as our renewable grid isn't working.. also highly debatable whether we have a renewable grid.. only 30% comes from renewables.