I could see it being a bit of both. Lyrics are often inspired by something and describing something else. In this case, someone stalking a former lover could be seen as “going full 1984’s Big Brother” on them… and it makes sense with the whole romantic mood that the song has: the stalker sees themself as romantic and sings it that way, but when you look closer you realise it’s actually very creepy.
I’ve seen a couple of articles from earth.com shared lately and they always have this clickbaity sensationalist tone. I don’t like it.
Looking at the original publication this article is based on I don’t understand much (I’m not a climate scientist myself), but one sentence stands out:
The climate models we all know and predict how climate change will affect us all seem to work on the basis that these currents have a stable circulation that doesn’t change, which doesn’t seem to be the case. Therefore the climate models we’ve known until now might be wrong… and things could be even worse.