Monday, March 9, 2009

Engineering Bias: a Transaction Cost?

It's very tempting to view today's energy problem as essentially an engineering problem. A quick scan through popular media turns up all sorts of reporting about the promise of new devices that will help us reduce our energy consumption and thus both our environmental footprint and our dependence on foreign oil. On the supply side, we hear about the need to invest in solar and wind power, or just more efficient, cleaner methods of extracting energy. On the demand side, we hear about pushing for fuel efficiency in vehicles, energy efficiency in our buildings and everyday appliances. These are all good things, positive developments to get excited about. But the one thing that such "solutions" have in common is an engineering perspective, and I worry about this engineering bias.

For one thing, viewing the energy problem in this way allows the layperson to deflect personal responsibility. Climate change? Dependence on foreign oil? Air pollution? These are problems for engineers to solve, one might say. Such a deflection of personal responsibility dictates business-as-usual for all non-engineers. That kind of mentality is worrying when there are demonstrated gains to be had in human behavioral changes.

Also, single-minded focus on engineering solutions crowds out more systematic ways of thinking. Gains in energy efficiency do not have to come at the level of devices. A couple of weeks ago, I attended a lecture delivered by a PhD student from Stanford's Precourt Institute for Energy Efficiency. The student's research related to CDMs (Clean Development Mechanisms), which are institutionalized methods for industrialized nations to curb their own environmental footprint by offsetting carbon emmissions more cost-effectively in developing countries. The student observed that transportation systems are being overlooked as an offsetting mechanism and proceeded to analyze the cause of this prejudice. Turns out that the panel that is responsible for approving CDMs is staffed by engineers. It also turns out that it's much harder to quantify to the satisfaction of an engineer's standards the carbon offsets that result from developing a transportation system. (Warning: I am definitely butchering the nuances of the research and the empirical analysis of the causal relations, but this is my take on the talk.) When you take into account these things, it begins to make sense why a panel of engineers might overlook systematic improvements in favor of device-level projects. The idea behind CDMs is to provide an efficient platform for industrialized nations to reduce carbon emissions, but it appears that an engineering bias presents a significant transaction cost that hinders the program's cost-efficiency.

So what big systems-level improvements might we be overlooking right now? Well, this is a thought piece, so I am just going to throw some ideas out there. In addition to transportation systems, I think that the energy-intensity of agriculture needs to be looked at more systematically. And I think policymakers need to think more seriously about reversing urban sprawl and stepping up urban revitalization.

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