Chart A shows that mobile access increases the reach of news sources. The X axis shows the audience reach of news sites and the Y axis shows the number of sites (density). People using mobile phones read a greater variety of news sources.
Chart B shows how mobile access increases co-exposure to news. The X axis is time spent on news sites in minutes, and the Y axis shows the number of sites (density). People reading news on mobile phones spent more time on news sites than people using desktop computers.
Chart C shows that people accessing the internet on multiple platforms, like mobile phones and tablets, are reading a much higher variety of news sites than people on a desktop. While the reverse was true in 2014, the switch happened in late 2015, and since then, there have been sharp increases in the variety of news sources people read on mobile while there has been a decline in the variety of sources people read on a desktop.