Tbf, "global warming" is a myth. Well, more of a misnomer

It's neither of those things though.

It is a true and accurate description of the impact our actions are having on the planet. It is getting measurably warmer and faster even than the scientific models predicted when Inconvenient truth came out

The problem is that on an individual, day to day, experience, the "warming" is barely perceivable. Sometimes you'll get record lows and other times record highs.

Climate change is probably a better term for it, because we are changing the climate, and that involves more than just warming (see ocean acidification). But the global average temperature is still increasing/warming.

Sorry for the pedantry. I realise you probably knew a lot/all of that, I've just seen too many bad faith actors in the realm of online climate change/global warming discussion.