I know you are being clever, but the fact of the matter -- if you're interested -- is that global warming is happening, and it does cause ice ages. What happens is that you have a great deal of glacial melt pouring into the oceans and, as a result, the moderating streams (Gulf Stream being the most famous, but there are others) do not rise as high in the ocean as they should, which changes weather patterns in the northern hemisphere. There are a great many other contributing factors, which have not lately been the case, but have greatly affected weather - volcanic eruptions of a massive scale being the most obvious.
But global warming is real, and it is a problem. Not because we'll all burn under scalding temperatures, but because with global warming comes ice ages.
Counterintuitive, perhaps, but true.