{edited 10/17/2013}
That's the wrong question.
We need to first consider the basics of our planet and global climate system's job of moving heat around.
Think about it in terms of a nearly closed system holding in more heat... energy - than it is radiating out into space. Will that system not become more energized and active?
The basic facts are:
We ARE adding heat to our life sustaining 'global heat distribution engine' - aka Climate System.
>>> means more energized and active
... means more wind and rain and storm surges interspersed with extending "doldrums" (heat and drought), thanks to Jet Stream disruption which is being driven by our Arctic Ice Cap's solar-reflector being transformed into asolar heat collecting medium...and water evaporator...
and convection current driver...
and higher altitude atmospheric mixing and warming...
and so on and so forth.
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
Cascading Consequences.
It seems simple self-evident physics. . . . . . . .
Yet, that geophysics based appreciation seems so distant from the current public way of thinking. With many demanding abstract statistical certainty above geophysical common-sense.
I fear a big part of the blame can be laid at the feet of the very human, but still child-like "Faith" thing and believing we can understand God and reduce our planet to God's toy, created six thousand years ago for some heavenly entertainment and pretending that "my" mind and petty human ego can actually understand "The Will Of God" - OK that's a pretty harsh perspective of the whole thing, but so be it.
Considering that at the root of the denialist attitude is a "Faith" that desire can be stronger than down to Earth physics.
Considering that at the root of the denialist attitude is a "Faith" that desire can be stronger than down to Earth physics.
~ ~ ~
There is no rational disputing that over the past century:
Our atmosphere's moisture holding ability has increased by 3-5%, due to increased CO2...
Our oceans are warming...
Our cryosphere is melting away...
Global temperatures have risen ~1°C...