Thanks to Google Maps, we can pinpoint the highest CO2 emitting power plants here:

http://carma.org/

You can type in your zipcode in the upper right box then click GO.

It's good to know that my electric provider is only using 1.76% fossil fuel, 40.78% hydro and my goodness, 57.45 % nuclear!!!

Anyway, they provide nice information for those who wants to dig deeper than the debate.

Here's the result of querying my zipcode 95616:

http://carma.org/company/detail/15033