I read the CheapRvLiving site once in awhile. There is some good information, doesn't mean I necessarily agree with what the site owner says. That said, as a blog owner, Google ads does what it is intended to do. It reads blogs and websites and posts ads that it feels are relevant to what the writer has posted.
As a side note, not taken out of context, the website owner isn't really far off. We are destroying the planet, it will never cease to exist but we might. No species is exempt from extinction.