And while global warming currently predicts an increase in bad weather so we're all going to die, actual scientists have noted that what we've seen recently is a decrease in bad weather. It's not much consolation if your home is slammed by a hurricane or an ice storm, but the simple fact is that there have been fewer, not more, hurricanes in the past couple of decades. Soon it will predict the decrease. The theory predicts everything. But if no evidence could refute it, none could confirm it, which is another way of saying that it means literally nothing.
Sensible philosophers are understandably impatient with statements that have no meaning.
So are the other professionals who routinely deal with them - psychiatrists. They know that a vital part of any really good paranoid delusion is how it deals with the lack of evidence. The absence of UFO crash remnants, for example, proves not that there aren't flying saucers but rather that the government is hiding all the bits in a coverup. The total lack of evidence proves the theory. Likewise, the fact that the earth isn't getting warmer clinches the case for global warming, if you weren't already persuaded by the decrease in extreme storm activity, which proves that indeed, just as the model predicts, um, uh, well we told you so.