The two big stories of our day are
(1) Our economic problems: The inability of economies to grow as rapidly as they would like, add as many jobs as they would like, and raise the standards of living of citizens as much as they would like. Associated with this slow economic growth is a continued need for ultra-low interest rates to keep economies of the developed world from slipping back into recession.
(2) Our oil related-problems: One part of the story relates to too little, so-called “peak oil,” and the need for substitutes for oil. Another part of the story relates to too much carbon released by burning fossil fuels, including oil, leading to climate change.
While the press treats these issues as separate stories, they are in fact very closely connected, related to the fact that we are reaching limits in many different directions simultaneously. The economy is the coordinating system that ties together all available resources, as well as the users of these resources. It does this almost magically, by figuring out what prices are needed to keep the system in balance—how much materials of which types are needed, given what consumers can afford to pay.
The catch is that the economic system is not infinitely flexible. It needs to grow, to have enough funds to (sort of) pay back debt with interest and to make good on all the promises that have been made, such as Social Security.
Energy use is very closely tied to economic growth. When energy consumption becomes slow-growing (or high-priced—which is closely tied to slow-growing), it pulls back on economic growth. Job growth becomes more difficult, and governments find it difficult to get enough funding through tax revenue. This is the situation we have been experiencing for the last several years.