on to other things
There are some enourmous problems with coal, for starters


mountain top removal is just scary.
then of course it's the dirtiest form of power generation we have, in terms of both SMOG and green house gas emissions, as well as things like heat pollution in waterways used to cool the plants. clean coal tech may or may not address these issues, I havn't looked into it much.
Nuclear energy also has several problems associated with it, first, It is tremendously expensive. of course back in the early days they claimed they wouldn't even have to meter the electricity because you get so much energy from uranium, problem is the plant it's self is horrendously costly to build and maintain. Next, and more important to your typical hippy, is the fact that you have to deal with radioactive waste for centuries after it ceases to be useful as a fuel. Right now we keep it in giant pools on site at nuclear plants, before to long it will go to buried under a mountain in Nevada, neither is a really great solution. there are also huge problems with waste heat from nukes, and of course the collective memory of 3 mile island and Chernobyl- though I understand that nuclear safety tech has advanced considerably, so it's more a psychological than a real problem.
that said, we probably should be developing more nuclear power... it's just going to be expensive.
as for the food costs of growing more fuel, check out the articles I posted earlier about tower farms, And look into bio-diesel from algae. and if it comes to it, there is a lot of arable land in the world thats no longer being used for agriculture. and frankly, there should be alot of people in the third world who are ecstatic about the rising price of food because it makes their domestic agriculture competitive with subsidized agri-businesss in the US and europe.
as for ANWR. less than 5 billion http://www.sibelle.info/oped15.htm. over the course of 20 years (guesstimated life of the field)
I think I'll take the Carribou and unspoiled wilderness over the net effect that will have on the price of gas.