It seems that the amount of energy that the earth receives from the sun varies over the years.
Very interesting discussion at Wattsupwiththat on data quality (a perennial problem with science in general, and Climate Science in particular, at least lately). There's a real problem with urbanization causing measured temperatures to increase over time, simply because a previously rural sensor is now in the middle of an "Urban Heat Island".
But of course, the climate models couldn't possibly be wrong. No sir. That's settled. Yessir.
Hey you deniers! Get the heck off my lawn!