There is a lot of concern that climate change will result in drastically higher sea levels within the next century and with so much of humanity living near the coast the predictions are dire. Millions of people will be displaced or billions of dollars will have to be spent on flood defenses. Today I got to thinking that such an occurrence may not in fact be all bad. The developing world seems to have repeated the mistakes of the developed when creating cities. The focus has been on a motorized society and urban sprawl which is looking increasingly unsustainable. Maybe rising sea levels are the shock event that is required to reverse this trend. If many of the developing world’s major population centers are submerged, they would have to be rebuilt. Instead of building 19th century cities, we could rebuild 21st century ones…once we all agree on what exactly that means.
These are some pretty big and bad lemons, but maybe there is the opportunity to create a tall developing world glass of lemonade with them.
Tuesday, January 6, 2009
Rising Tides
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I had an interesting thought once: nuclear power plants need to be near water for cooling. As such, a non-trivial amount of them are near the ocean. If the predictions are right, with respect to rising tides, many of the plants could be submerged. I tried to get long/lat coordinates for the plants, but the resolution wasn't high enough to estimate elevation.
I'm sure that there have been safety discussions on this, but I haven't been able to find any online. The Waterford plant, in LA, during/after Katrina was safe, so maybe they are quite resistant to flooding. On the other hand, there are a few plants in Florida that must be near sea level (such as Turkey Point.) Now, the sea is handy at distributing waste via dilution, so the magnitude of the problem probably isn't very large (coupled w/ the fact that most of the high level waste would hopefully be removed - it's not like the sea level would just jump up one day.) However, I wonder how forward looking the investment decisions are to these sorts of threats, when we're looking at recoring reactors. Something to ponder.
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