Actually democrats support all of these programs with some reasonable qualifications that Bush and McCain and Big Oil don't like.
1) Big Oil wants more subsidies to drill
2) Big Oil doesn't want to push forward and clean up its drilling practices.
3) Big Oil doesn't want to spend money protecting the environment including migratory caribou and bird life.
4) the nuclear companies don't want to spend money on proper use and disposal of nuclear fuel and waste.
5)I support wind power though many oppose it as the wind powered generators look ugly (as if oil pumps don't)
We are in an extinction right now and the environment is suffering greatly. Our oceans are being poisoned - by poor oil drilling methods, by ships dumping bilge and sewage into the ocean, but dirty leaky ships, by dumping barges full of garbage into the ocean, by nuclear waste dumped in unreachable ocean depths in canisters which are corroding badly, by countries routinely disposing of chemical wastes in third world countries which ends up leaking into the oceans etc.
If you want to see dirty oil production just look to Alberta, Canada. Filthy oil practices.