I found this article disappointing. Neither Joule, Watt(seconds) nor any kind of energy potential or entropy were mentioned. The "primary, secondary, final, useful" categorizing seems arbitrary to me an i have doubts about its usefulness. In the end of the day, energy potential is nothing intrinsic to matter, it depends on what you can and will do with it.
In the diagram, the Oil, Wood and Coal chains are exclusively about burning that stuff. Oil and Coal are a climate problem just due to the fact that people dig/pump them out and put its carbon onto earths surface, burning it for heat is optional here. Think plastics.
In the diagram, the Oil, Wood and Coal chains are exclusively about burning that stuff. Oil and Coal are a climate problem just due to the fact that people dig/pump them out and put its carbon onto earths surface, burning it for heat is optional here. Think plastics.
This article gives me a odd feeling.