So we're supposed to give up on nuclear power altogether because "someday", someone "might" supposedly go ahead and become careless and get rid of decades of research and requirements?
Well, yes. Your answer may differ.
I think you have to weigh the probability of the "might" and the potential dangers carelessness would cause against the advantages of nuclear power today and the alternatives available.
Surely we can agree that if we could get energy by banging rocks together, we wouldn't be playing with nuclear. It's the perceived lack of smarter options that makes us willing to take these risks.
What I was suggesting to Glenn was that he had incompletely weighed the total risks. He was talking about regulations for US power plants today. I was just pointing out that a lot of other risks would be involved.
I don't expect everyone to come to the same conclusions. I don't expect everyone to evaluate the risks in the same way. But I do think we need to have some common understanding about where the potential risks might be.
People who support nuclear power often highlight the few deaths in nuclear plants, for example. But that's not what the people who are against nuclear worry about anyway, so it's a moot point.
I said that wind and solar entirely replacing coal and nuclear energy throughout the entire world was a pipe dream at best. This seems to be a "pipe" nightmare. While we're using hypotheticals, can you be confident that some mad scientist won't hijack solar energy and use it to power a death ray that could wipe out the entire U.S.?
Funny you should mention that. There are serious proposals to get our energy from giant microwave beams. The risk is that if we lose control of them, they can start microwaving huge swaths of inhabited areas in unpredictable ways.
There are other pipe dreams, like mining the oceans with iron filings or sending back solar rays with giant arrays of mirrors to deal with global warming.
If we wait long enough, we may have to, in our desperation, resort to trying all these things. But they are desperate and uncertain methods. I advocate putting our energies in the tried-and-true low-tech methods. When I was a child, our emissions were a fraction of those we have today. Life was not so bad. If we add some innovations like insulation and triple glazing, we can reduce emissions even more.
http://www.spacefuture.com/archive/...power_from_space_in_china_and_indonesia.shtml
http://news.bbc.co.uk/2/hi/science/nature/7014503.stm
http://findarticles.com/p/articles/mi_m0GER/is_2001_Summer/ai_76896195
But to answer your specific question. Yes. I am confident that solar panels are incapable of powering death rays. If solar technology changes, I'm prepared to change my mind. There are serious proposals for giant solar arrays in the Sahara, so maybe. But nuclear waste is hazardous now. I don't need a mad scientist. All I need is a seismic shift creating a leak in the containment facility. I've spoken to many engineers who say that it's impossible to build a containment facility to last for hundreds of years without considerable chance of failure.
Or consider the uranium tailings, none of which are contained to my knowledge, anywhere in the world. Whole subdivisions have been built with them in the United States by contractors who didn't realize what they were dealing with. Here's just the first article I found that refers to this:
In the Southwest U.S. and in Port Hope, Ontario, many homes and schools were built using the sand-like uranium tailings as construction material. As a result, some of the buildings ended up with levels of radon gas and radon daughters even higher than those permitted in the mines.
http://www.ccnr.org/uranium_deadliest.html
So, if this kind of thing happens in the United States today, what level of confidence can we have for the next few centuries?
I must also take issue with the first sentence of this paragraph. I agree that you've stated (more than once) that solar and wind can't replace nuclear and coal. But that doesn't mean everyone agrees with you.
To begin with, you're starting from a point where we need to replace x kilowatts with x kilowatts. That's wrong. Because the most economical way to address demand is conservation.
Every sane renewables program begins with conservation. Target at least 50% load reductions through conservation. Certainly if you look at the wedge diagram in a previous post of mine to Glenn, you'll see that in the emissions reduction program proposed for Canada (and this was not a renewables program), the largest chunk by far was attained through conservation. It's a huge resource. I should point out that the emissions reductions obtainable by moving to nuclear were the slimmest sliver of the lot.
Can solar/wind/biomass make up the balance? A lot of people on this site think so. You're looking at global numbers and coming up with .4% But you're ignoring the fact that many countries already have 5%, 10% or even 20%. The reason solar and wind have such low penetration in most of the world is that they're expensive compared to coal or, in some cases, hydro. Take away coal and wind starts looking pretty good. I have to say that for industries that have developed independently with little government input or support (and with hostility in some cases), the wind and solar industries are actually doing well.
As I said, in Ontario, the government recently introduced a program to pay people for energy generated through renewables. They targetted 100 MW of solar this way over the next decade. That target was reached in 6 months, with solar developers planning for more.
http://www.renewableenergyaccess.com/rea/news/story?id=48336
http://www.thestar.com/article/215273
http://www.cansia.ca/solarcurrents/SolarCurrents_June_2007.html
Finally, the implication of your incredulity that renewables could replace nuclear and coal seems to indicate that you believe nuclear could replace nuclear and coal. And I'm pretty sure that using currently available technology (which is all we've got available at this juncture when emissions reductions are urgent), you're mistaken about nuclear potential.
It can reduce the need for conservation a bit. It can't just replace all our coal. There's not enough uranium, there aren't enough engineers, long lead-times are necessary and current nuke plants are dying.