Energy, ecology, and economics revisited

By Mary Logan

We must understand the concept of net energy in order to see the underlying energetic basis for society.  Yet net energy is often misunderstood, typically through optimistic measures of valuation that do not address the hidden inputs. Perhaps HT Odum’s clearest, simplest, most understandable paper on the topic was written 40 years ago, in a special issue of the Royal Swedish Academy of Science’s Energy in Society issue of Ambio (1973). The article was republished in Mother Earth News, still available online through Minnesotans for Sustainability. The paper remains as relevant and fundamental to the arguments for net energy today as it did 40 years ago. Each time I read the paper, I find new meaning from it. Perhaps it is time to revisit the principles quoted below from the paper, to update the terms and give modern examples of the interrelationships between the 3Es of energy, ecology, and economics. Some of the terminology and accounting methods have been refined over time, but the general principles remain unchanged–principles that are essential to the energy dialogue. Continue reading Energy, ecology, and economics revisited