Second hottest year ever

NOAA has calculated the global temperature anomaly (relative to 1901-2000) for December and so the year 2019.  The chart below shows the annual average as well as a LOESS trend estimation.

Four points:

1. 2019 was not an El Niño year (that was 2016).  Even so, it was the second hottest ever measured.
2. The average rise per decade since the beginning of 1970 has been roughly 0.2 degrees C.
3. Since 2010, as measured by the LOESS trend, that has increased to 0.3 degrees C per decade.  
4. If this trend continues (and it is consistent with ever-increasing greenhouse gas emissions), we have less time to de-carbonise our economies than we thought.

Source: NOAA