Entries in risk (1)

Wednesday
Mar232011

A Sense of Scale

 

The recent earthquake and tsunami in Japan is shocking beyond its numbers. There are thousands dead and hundreds of thousands homeless. The economic damage is immense. Well beyond that is its impact on our sense of scale, our sense of the human place in the world. Here is a video clip that had me transfixed in horror:

One could look at that scene and conclude that nature is cruel. That would be wrong. It's worse than that; nature just is. Cruelty is a human trait and has a human scale. We can negotiate with cruelty. We can fight it. We can arrest it, try it, convict and imprison it. We can reeducate it, or wait it out. Nature is there forever, and it is unconscious and without intent.

I'm sharing this video clip with you not to shock you, but to remind you of our scale. It's not a kind thing to do, and I apologize. A friend of mine once said that a certain amount of delusion was necessary to stay sane, and I suppose I'm threatening that. However, a regular reminder of our place in the world is a mental tonic; not good tasting, but it clears the mind.

There is an area around the Chernobyl nuclear power plant that will be off limits for human habitation for, what, decades? Centuries? With luck, the area around the Fukushima nuclear plant won’t be contaminated and people will be able to move back – if they actually want to. With a little less luck Japan could lose some land area essentially forever. Is this a level of risk we should be taking, especially given that there are alternatives? I say no. Don’t juggle hand grenades if tennis balls are available.

The Fukushima disaster hits close because here in Vermont we have a nuclear power plant that is the same age and design as the Fukishima reactors. It is the outdated and unsafe GE Mark 1 design, and it is coming up on its 40th birthday. It has been leaking tritium and perhaps other things for some months. Its owner, Entergy, has been lying to state regulators and coping with drunken employees. 75 miles east-southeast lies the greater Boston metropolitan area, with a population of 4.5 million. It’s the unimaginable waiting to happen. The Nuclear Regulatory Commission, in a move that surprised nobody, just re-upped its operating license for another 20 years.

As Japanese workers valiantly attempt to cool down those leaking reactors that were wrecked by the earthquake and tsunami, we should rethink risk and our ability to manage risk. We are, as a species, a glass cannon. That is an expression from the world of fiction meaning a character that can inflict terrible damage but can’t take a punch. We can be incredibly destructive en masse, but as individuals and as communities we are vulnerable to what nature can dish out. Likewise our complex structures, both social and technological.

Engineers regularly design mechanical systems to endure natural disasters. The point is to predict the worst things that could happen and build in enough redundancy so that in the worst case scenario the system still has one level of safety left. As we have seen, nature can defy our predictions and wipe away that last level of protection. Taking it as a given that our systems will sometimes be overwhelmed by events, we have to start thinking about the consequences of absolute failure.

If a wind turbine has an absolute failure and falls over, I suppose it could land on someone. The same goes for a rack of solar panels. However, the fall zone would not be rendered uninhabitable for centuries. Cancer deaths would not spike downwind. An entire wind farm could go over all at once and the nearest city would not have to be evacuated.

We seem to have reached a scavenging age in the pursuit of non-renewable energy. We have decades-old power plants and decades-old oil fields starting to fail. We are exploring for oil at extreme ocean depths with the associated extreme risks. We are strip mining and processing tar sands that nobody in the business would have bothered with a few decades ago. We are blasting the tops off of mountains for coal and engaging in the dangerous re-mining of old deposits. As we start to scramble, the risks per ton, per barrel, per gallon, per kilowatt-hour are going up.

We can’t keep reassuring ourselves that we’ve got it all under control and that the worst will never happen. It’s time to look with an unflinching gaze at worst case scenarios and ask ourselves, “Are we willing to accept this level of destruction as the cost of temporarily keeping the status quo?” The answer, in many cases, will be no. We’ll have to face up to fundamental changes in the way we live. We’ll have to balance present convenience against future consequences. There are no easy answers, but pretending that everything will be ok is no answer either.