In my recent post, “The Limited Vision of the Pro-Nuclear Energy Argument,” one of the commenters wrote: “it is a fact that only carbon-based energy and nuclear have a high enough energy density to meet our world’s demands. None of the renewables come close.”

I responded, “It is far from ‘fact’ that only carbon-based and nuclear energy sources can meet the world’s needs. There are many studies showing that a combination of renewable sources can indeed meet that need. And that will be easier still with a rethinking of what we employ energy for and how it actually improves our lives.”

I was referring, in part, to several sources, including a 2009 article in Scientific American titled “A Plan to