Quote Originally Posted by Total_Blender
Ice ages take hundreds of thousands of years to come around. You can't say that because we have had 2 or three cooler years on a graph of 150 mostly warmer years that we are starting to have an "ice age". If we were really starting an ice age the decline would be so gradual that we would not perceive it in our lifetime.

Geologic events like ice ages work in a much, much longer timeline. If you look at the timeline over which the global rise in temperature has occurred and compare it to the geologic timeline of ice-ages and warming cycles, the contrast is shocking.

I'm not saying that we are moving towards a ice age right now. I was simply making an point that this could very well be a natural cycle of the earth. I was watching the discovery channel a while back and it said something about the temps of Mars and a few other planets have gone up also.