Global warming continues; 2016 will be the hottest year ever recorded

What is the big deal? Well first of all, 2016 blows away 2015 which was previously the hottest year ever and that had beaten 2014 as the hottest year ever – call this a three-peat. Three records in a row and the last two are by large margins. Does this mean global warming all of a sudden has gotten worse?

No, surface temperatures fluctuate a lot – you can see that in the figure. Temperatures will go up or down from year to year without apparent reason. This is why we are interested in the long term trends. This is also why we are interested in looking at other measures of warming (especially in the oceans). All of our measurements agree with each other – we know the Earth was warming long before this set of records began falling in 2014.