[Oshkalaboomboom]

Is the BBS saying that the Sun’s output is increasing? I have never hear that one before.

No, they are saying that the sun is expanding as part of the normal life cycle of a star and as it does we will get warmer and eventually be destroyed. Astronaut Mike Massimo did a documentary on it Video here it's watchable but don't click on the link as they suggest. Since you live in the USA (I live in Spain) you may find it on one of the streaming TV services in better quality.

[Vince Ferrer]

Ok, gotcha. Well, at a billion years I think we've got a lot of stuff to worry about before that one. We are gradually losing carbon dioxide out of the atmosphere, and even with cars and coal plants replacing some of it, it will still run out in about 65 million years.

In a billion years we will be living well off Earth, probably out to the Oort cloud. We may even have the tech to move Earth out to the edge of the solar system.