Okay, jokes aside, how do I convince my dad?

He’s Silent Generation (86), and he’s very smart and savvy otherwise (he’s an aerospace engineer, still has his 9-5 job in airplane development and has recently started driving for Uber to fill his spare time), and plays VR games on Oculus with me and my sister on weekends, but he doesn’t have patience for our climate change talk. He’s extremely liberal otherwise, but he thinks this is all overblown and the natural cycle of climate, telling us he’s seen these changes before.

How do I convince him this is different? Im at a loss. Or maybe I shouldn’t bother because at his age it doesn’t matter and I should just let him ‘be right’?

My sister is disturbed by his attitude, but im not sure it matters, really.

It's an excellent moment to remind you that even if we manage to dodge this, there is still the heat death of the universe, so it's just a matter of how long do we want to waste energy postponing the unavoidable