Re: climate change times are a changin'
OK, that's a good point. Let me ask you a question, though. (It's not a trap -- I don't know the answer.) What has a lower carbon footprint -- a mile driven in an electric car powered by a fossil fuel plant or a mile driven in a current car?
That is a really excellent question, and I don't know a definitive answer - in fact, I'm not sure a definitive answer is really possible. On the face of it, it's an easy question: oil has two paths to create the motion of the vehicle which is the end result that you desire:
A. oil -> shipped to refinery -> refined to gasoline -> trucked to gas station -> combustion in tiny (inefficient) car engine -> motion
B. oil -> refined to fuel oil -> shipped to power plant -> combustion in massive (efficient) power plant -> generation losses -> transmission losses -> vehicle charging losses -> electric motor losses -> motion
I believe that if this is your accounting method, you would pick B (based on today's battery technology, which is the key enabler for an electric vehicle) - the gains in the combustion efficiency of a huge, stationary power plant are more than enough to make up for all those extra steps of transmitting, storing, and converting the electricity to motion. However, that really only tracks the efficiency of the various energy conversion and transport processes,
once the infrastructure and the vehicles have been built. If you broaden your scope to include the relative energy required to construct the infrastructure and the vehicles, then everything gets a whole lot muddier. We already have a massive infrastructure to support A, so the "marginal cost" of putting the first electric vehicles on the road is enormous. However, if we imagine a world where B was the prevailing paradigm, we would say the same thing about A ("What? You're going to build 10s of thousands of filling stations and truck gasoline to them one at a time??? Are you nuts?"). And, it does take a whole lot more energy to build an electric car (batteries take a lot of energy to build), and that energy use has to be "amortized" over the life of the car - and the amount of energy to build electric cars is changing all the time...
The apples-to-apples comparison would be to look at what we have today (A), and compare it to how much energy we
would be using to create that same transportation effect if we lived in a world with a similarly mature infrastructure for B. Since we can really only imagine what the B world would look like, it necessarily involves a lot of assumptions, extrapolations, and outright guesswork - not very satisfying to an engineer who would like to find a "definitive" answer.
I'm not sure I'd call nuclear worries "NIMBY hysteria" unless you're willing to live right next to one. You and I have the luxury of choosing to live in nice leafy suburbs away from dirty (or lethal) industry. The people who don't have that luxury should fight tooth and nail to keep that stuff away from them.
I would happily live near a nuclear plant, except that those areas are usually blighted because most of the people who can afford to live elsewhere, do - I would be far more concerned about my
actual neighbors than my industrial ones. I do, in fact, live in the shadow (literally) of a massive high-tension power transmission tower.
