I recently paid my electric bill and was putting the inserts into the recycling bin when I saw one detailing where all my electricity comes from. I was surprised to see that my utility, National Grid, sources 74% of my electricity from what I’d term Green resources: 34% natural gas (considered transitionally Green because it burns cleaner than oil and coal), 27% nuclear, 6% trash-to-energy, 3% large hydroelectric, 3% biomass and 1% wind. Another 12% was imported power, almost certainly hydropower from Quebec (which, if true, would bring the Green energy total to 86%), while 9% was coal and...