The word, "unequivocal", is typically trotted out when things are actually equivocal.It is intellectually disingenuous to cite one event as if this tells the entire story. Maybe you think that NASA, NOAA, the Department of Defense, the NSA, and many other agencies are ignorant or lying to feather their bed, but some of us at least know what the real facts are. Here, even Wikipedia has information, including links to scientific studies: https://en.wikipedia.org/wiki/Global_warming
BTW, you linked us to NASA on that one item, but you should have looked further because here's the larger view, also from NASA: http://climate.nasa.gov/evidence/ The headline for the article from NASA reads: "Scientific evidence for warming of the climate system is unequivocal".
And they've demonstrated in failed predictions that the climate models need more work.
Of course, we can observe warming, & project some trends, but I wouldn't be so quick to
believe everything government aparatchiks say. (They can be ordered to say things.)
Btw, some computing improvements loom, so I expect models to gain predictive value.