The ice caps have been melting, but not faster than usual. The predicted rate doesn't match the actual rate. That's why GNP had to take down its signs. That's why they had to change the language to climate change.
Not a single prediction has come true. The glaciers are still here, coastal cities are fine, there are no more or stronger storms, droughts are the same, etc. The test of any scientific theory is making predictions and then testing them. By that measure global warming is not just wrong, but the biggest con ever perpetrated.
Start from first principles. If water vapor causes 95% of the greenhouse effect, how can CO2 possibly drive the climate? If co2 is 3% of the greenhouse effect and humans contribute .1% of that, that's only .03%. How are we driving climate?
Finally, in every period of history, warmer weather is associated with more life, more diversity of life, and in human history is always accompanied by better quality of life for mankind.
https://web.stanford.edu/~moore/HealthBenefitsofWarmer.html
http://science.time.com/2012/09/04/biodiversity-has-increased-during-earths-warm-periods-but-climate-change-isnt-off-the-hook/