2014 hottest year
In early December I wrote a post called "2014 will not be the warmest year on record, but global warming is still real." The very first thing I said in that post is that I was going out on a limb. I also discussed whether or not one year mattered, and I discussed the nature of the phrase "X is the Yth warmest year on record," going into details on what "the record" is and how we measure this.
I want to reiterate something very important that I mentioned then. Here, we are talking about a combination of measurements from the sea surface and the air just over the land (about where your head…