Careful what you see and believe.
In my work as a professional engineer, as an environmental researcher, and now as the director of the oldest independent climate science education organization in the world, I understand graphs. This is why I was concerned a few days ago when I saw a log (logarithmic) scale graph of confirmed COVID-19 cases on MSNBC. It looked like the top of the curve we have heard endlessly about was here, that the peak was at hand and we would soon be free of the curse of the exiles. The state of this disease today is that we may be peaking; please Great Spirit, let it be so. But presentation of a graph with a log scale to the public without explanation of what a log scale is, does not represent reality.
A logarithmic scale or a “log” scale graph is a tool many professionals and science workers use to visualize data that is similar to a normal “linear” scale graph in one way, but radically different in another. The “log” graph below is what I am talking about, presented on MSNBC April 13 (and updated to April 19 for this article). Compare the first graph (log scale) to the second linear scale graph. They are the same graph using the same data on the web same page. The first is with the log scale, the second with the linear scale. The skyrocketing red United States line in the linear scale graph is the same as the apparently curving line in the log scale graph, only presented without the exaggeration of the logarithmic scale.




























