Firstly, there is no such thing as global warming. Anthropogenic Climate Change is a myth.
There is certainly climate change, but humans do not cause it. What would be highly unusual would be if the climate did not change.
Secondly, I'll be VERY willing to consider that global warming/climate change is a problem the minute the Chicken Little kooks make just ONE prediction that comes true - they have been hysterical for years and they spew their dire warnings constantly and NOT one time have they been correct.
So, even if CC data is exactly right, which is highly questionable, their "science" is exactly wrong. It's wrong because there could be valid predictions made using their "science" and they have been 100% WRONG every time and without exception.
A few decades of normal temperature fluctuations proves nothing.