From the wiki article: "he maintains that satellite measurements of the cosmic microwave background radiation, believed by most astronomers to be an afterglow of the Big Bang, are actually observations of a glow from Earth's oceans."

I am no expert but that wacky idea can be ruled out with concepts in an introductory physics textbook just based on the fact that the cosmic microwave background is a few Kelvin blackbody spectrum whereas the ocean temperature is 273K or higher (which would have a very different "warmer" spectrum).