Wait a minute, there's a sun?

Talking to the global warming/climate change alarmists, you'd think the only reason the earth is as warm as it is, is because humans polluted it so much that now it's becoming too warm. However, apparently there are some variables that they may have missed in their calculations, like the sun for example. The amount of energy released by the sun varies too, like with sunspots. Recently we've been going through a very low minimum of sunspot activity, coincidentally corresponding with a general cooling of the planet. I guess that may be why the catchphrase has changed from global warming to global climate change.