DrG
Good research idea. It piqued my interest as I thought the returns were low for all categories and did a search on news archives. This resulted in AIDS – 2.51m, Recession – 1.66m and Peak Oil – 0.28m hits. These numbers are considerably larger than the ones you quoted, with PO still lagging. On the other hand, it’s not that great a total for an earth changing event. Most media do not operate in future mode. Stories that sell are those that are immediate, not some concept that might or might not happen.
I also searched Global Warming and found 0.55m hits. Respectable given the higher political interest, but not outstanding either.
PO is barely on the radar relatively, as stories on this topic only started to develop after around 2001. Interestingly, they peaked in 2006. (Peak Peak Oil Stories) Fossil Fuels at 0.15m are even less on the radar despite Al Gore.
The recession archives are spread over a much larger time frame and encompass references to all previous recessions, not just the present.



