Nuclear footprints

In a reply to an open minded post by Mike the Actuary:

... while nuclear power’s “green” credentials are questionable, there is something to be said for nukes being used to defray our dependence on fossil fuels.

We support Lee suggests an exercise:

Pull up Excel or whatever and write up rows for each of the electrical power sources: coal, oil, natural gas, hydroelectric, nuclear, biomass, and other renewables (wind and solar). Then, make rows for the following information: percentage of U.S. electrical generation, net generation by power source for 2005, net generation capacity by power source, particulate lifecycle emissions per 1 kWh, SO2 emissions per 1 kWh, CO2 emissions per 1 kWh.

To keep it simple, you can stop here. If you want to get fancy, try this...
[...]
Once you've done this spreadsheet, you should be able to re-evaluate your statement that "nuclear power’s "green" credentials are questionable."