Good point, Alex, about nuclear technology.  No matter what we like to preach about the environment, like it or not, it is our required #1 source for power.  A majority of our energy must be this source, if we continue to grow evermore rapidly.  A commenter crunched some simple numbers in this article I came across.

Big problem with nuclear (if we can really believe it’s 100% safe now) is it’s so expensive compared to coal.

e8005, you are correct, nuclear is quite expensive and potentially catastrophically dangerous.  But the unfortunate reality is that if we all continue to grow at the rate the world does, we don’t have a choice.  Do I need to spell out the obvious implication of the underlying problem here?…