Earlier quoted context omitted.
> it seems the real reason, as in all things, is economics The economics might be different if we paid for the real cost of carbon-based energy, instead of imposing that cost on the world as an externality.
The total cost for storing and securing shit for 100.000 years is also 'externalized.' Both costs are more or less impossible to establish upfront.
Soon it will be possible to use most of the waste as fuel:
"...Fast reactors can "burn" long lasting nuclear transuranic waste (TRU) waste components (actinides: reactor-grade plutonium and minor actinides), turning liabilities into assets. Another major waste component, fission products (FP), would stabilize at a lower level of radioactivity than the original natural uranium ore it was attained from in two to four centuries, rather than tens of thousands of years"
http://en.wikipedia.org/wiki/Integral_fast_reactor
How does coal waste compare to that?
"Coal ash – the waste material left after coal is burned – contains arsenic, mercury, lead, and over a dozen other heavy metals, many of them toxic."
http://www.psr.org/environment-and-health/code-black/coal-as...
"The study found that levels of radioactivity in the ash were up to five times higher than in normal soil,"
https://phys.org/news/2015-09-radioactive-contaminants-coal-...
How much coal waste is produced per year?
"According to the American Coal Ash Association's Coal Combustion Product Production & Use Survey Report, nearly 130 million tons of coal ash was generated in 2014."