A couple of years ago I happened upon a Limbaugh program of him mocking the idea that humans could actually "destroy the earth". Which is technically correct if taken literally. There is not much we can do to the mass of rock called earth that is floating through space. But what we can do is destroy the climatic and ecological conditions upon which humans depend. Of course this is a little too complex for Limbaugh's audience who fixate on the terminology of "destroying the planet".