So.... from what I’ve seen, experienced, and read, it would seem that given the margin of error, The AVERAGE GLOBAL TEMPERATURE has not really changed at all.
And it is a poor metric to use to analyze the total heat energy (heat content) of the Earth's Biosphere. The atmospheric temperature at 2,000 feet above sea level is not equivalent in heat energy to the atmospheric temperature at sea level. This is simply due to density differences. The atmospheric temperature of humid air with a high density of water vapor is not equivalent in heat energy to dry air with less water vapor. Same with air containing moisture. Same with air containing fog.
So they are using the wrong metric combined with poor procedures and biased with political beliefs. Thus, they have ended up claiming the Earth is warming and the hottest ever, while the UK and South Florida experienced their coldest December in recorded history. In other words, the AGW crowd got it 180 degrees wrong.