The chart is a chart of the yearly "anomaly". So even a 0.3 degree deviation is plotted in the chart as an "anomaly". Clearly you don't understand the issue, which is exactly my point. It is a misleading label.
I am not saying the rise by whatever many degrees is not an anomaly. That is simply not what they plot. They don't call the steep rise an anomaly, they call every deviation from the arbitrary average an anomaly. They don't plot the "steepness of the rise", although you can see it in the chart. Every point in the plot is called an "anomaly", not the plot as a whole. Even the data points where a year is colder than their arbitrary average is called an anomaly in their chart.
English is not my first language but I think I know what an anomaly is supposed to be.
I am not saying the rise by whatever many degrees is not an anomaly. That is simply not what they plot. They don't call the steep rise an anomaly, they call every deviation from the arbitrary average an anomaly. They don't plot the "steepness of the rise", although you can see it in the chart. Every point in the plot is called an "anomaly", not the plot as a whole. Even the data points where a year is colder than their arbitrary average is called an anomaly in their chart.
English is not my first language but I think I know what an anomaly is supposed to be.