Why is global warming now referred to as climate change?

Why is global warming now called climate change?

Am I a climate change denier? Don't think so, I certainly believe in science, yet I am compelled to challenge the orthodox view. Not just believing exactly what I am told without firstly researching both views trying to pick holes in their arguments is the basis of critical thinking and deductive reasoning.

Scientists are receiving large sums in research grants to study such effects. Their funding may hinge on providing research fitting the widely held view, are they in fact compromised?

So it is with much interest I note the change in title from global warming to climate change. Research is indicating a 15 or so year lull in global warming, is this a momentary lull, a change in direction or a long term change?

I have noticed changes in the Perth climate as both a child and teenager, wind patterns, rainfall and temperatures have differed during that time, is this a 10, 30 or 100 year recurring cycle?

There is no doubt the industrial world of the last two hundred years is pumping emissions into the atmosphere, there is little doubt deforestation is affecting local environments.

However, how long has humanity been keeping accurate records? Is this all part of a longer cycle, we have had ice ages and rewarming in the past, there is no evidence of industrialisation during the mesozoic period. 

The widely held view is an ice age killed the dinosaur population ushering in the age of the mammal, a comet or meteorite crashed into the earth? Maybe, but where is the evidence? Is 200 years a long enough time-frame to make creditable judgment?

I am not saying global warming is over, a hiatus, yes, but why? A stabilisation period before increasing again? The data told us temperatures rose, that fact is not in dispute, however, policy is derived on the basis of computer modeling, this is a cause for concern.