Global warming?? Does anyone else hold to the theory that?

maybe its the reverse of the ice age happening? Millions of years ago, the Earth was warm, with lots of land m then came the Ice Age then everything melted and water flooded the land and caused separate land mes, then came the Dark Ages and now we're headed for another 'Warm Age'. All this of course has happened over millions of years but its only now we can measure tempature and see the ozone layer via satellite so...does anyone else think like me?