If it does blow soon, and it turns out to be as bright as the sun, which is possible according to the article, might this have some impact on climate?
At that distance, it’ll get bright, about as bright as the full Moon. That’s pretty bright! It’ll hurt your eyes to look at it, but that’s about it. The original post says it may get as bright as the Sun, but that’s totally wrong. It won’t even get 1/100,000th that bright. Still bright, but it’s not going to cook us. Even if it were going to explode soon. Which it almost certainly isn’t.
On the one hand it looks pretty cool, on the other such bright star would make the other stars invisible.