I'm sorry, dude, but there's really no debate about this. Our world does go through many warming cycles, and we do have cycles of CO2 buildup, but we have, in the last 200 years, surpassed all of them.
People have this really annoying habit of sticking their heads in the sand to try to avoid acknowledging inconvenience. We don't want to acknowledge that most oil producing nations are producing less oil, though they are still running at maximum capacity. We didn't want to acknowledge CFC's and what they were doing to the ozone layer.