Nuclear power makes the most technical AND political sense of most of the energy sources. Greenpeace is not a reliable source of information on anything-they are irresponsible fearmongers.
Many laypeople are currently kidding themselves into thinking that these "hybrid" cars or solar panels are good for the environment. As far as total efficiency nad energy balance goes, you are better off with a Hummer than with a Prius.http://bexhuff.com/hybrid-or-hummer
Same thing with solar cells. It takes so much energy to produce the silicon chips (silicon does not occur naturally in the earth's crust) that a solar panel would have to operate for about 20 years to recover the energy that you have to sink to it just to make it. Most crack or fail before then.
There is always foreign oil, and if you insist on avoiding nuclear then you buy the political situation of dependence on unstable countries. Personally I would enjoy seeing the need for it dry up, then the Middle East would lose its interested for the US.
Nuclear is pretty much the only game in town and the sooner we would collectively realize it, the more stable our economy and the world political situation would be.