Lawrence Livermore Labs, in its Energy Flow Diagram of the U.S. (based on 2009 data), gets us most of the way there. Of the total 41.5 Quads used in buildings (1 Quad is equivalent to 1,050 ...

Secondary production is an ecosystem (energy flow) concept that is measured using a population technique. Textbooks rarely mention that it can address population/community questions as well ...

Each food chain is a descriptive diagram including a series of arrows, each pointing from one species to another, representing the flow of food energy from one feeding group of organisms to another.

A type of battery invented by an Australian professor in the 1980s is being touted as the next big technology for grid energy storage. Here's how it works.