File this as another one of the "Imagination without knowledge is ignorance waiting to happen" case. It isn't the first time that someone tried to use physics in a rather interesting way to falsify something. Creationists had tried the same thing against evolution.
In this case, it is questioning the greenhouse effect whereby the earth gets heated due to the presence of greenhouse gasses. The website presented a typical faulty argument being presented, and then a rather good responses to it. This might be something one might want to read and understand in case one encounters the same type of argument.
Note that the American Institute of Physics has a website that includes various physical description related to global warming. The directly link to the site can be found from this Blog's favorite links.