Sandy and digital snow days

by Mary Logan

My thoughts and concern goes out to those struggling with this unprecedented American storm in the northeast. As I write this early on Tuesday morning, watching this game-changer of a storm, a myriad of thoughts go through my head. The storm event is just the beginning. Rivers will flood, and snows will accumulate. Recovery will be long and slow. Recovery will be hampered by problems with energy delivery, complexity, and density of populations. Just in time, digitized systems that are overly complex will be challenged. News will filter out slowly, with initial optimism about the extent of the damage, followed by increasingly pessimistic reports about the size and extent of the problems as communication begins to be reestablished. This post describes Sandy as a catastrophic pulse in relation to the problems of dense urban living, complexity, and digitization. Continue reading Sandy and digital snow days

Spatial emergy concentration and city living

By Mary Logan

How do cities concentrate energy and materials spatially? What is the relative emergy basis for modern cities, agrarian towns, and rural spaces? Do city dwellers use more or fewer resources than suburban or rural dwellers? Are big cities more sustainable in descent, as some propose, and how do we maximize empower in the future for our cities? Continue reading Spatial emergy concentration and city living