Well the climate has been fluctuating for thousands of years. We had an ice age and then it got warmer. However human impacts have put more greenhouse gases into the atmosphere which traps the suns heat. So yes it is real.

It is a real scam!

Quote by Will Happer, Princeton University physicist, former Director of Energy Research at the Department of Energy: “I had the privilege of being fired by Al Gore, since I refused to go along with his alarmism....I have spent a long research career studying physics that is closely related to the greenhouse effect....Fears about man-made global warming are unwarranted and are not based on good science. The earth's climate is changing now, as it always has. There is no evidence that the changes differ in any qualitative way from those of the past.”

There is nothing about the climate today that hasn't happened before in the past. Global warming is real but humanity has very little to do with it.

Quick answer yes, oh and check out http://climate.nasa.gov/key_indicators

Yes and humans are causing most if it recently