When you add all these things up — Saul Griffith did the numbers and figured out what would it take to get 13 clean terawatts of energy from wind, solar and biofuels, and that area would be roughly the size of the United States, an area he refers to as "Renewistan." A guy who's added it up all this very well is David Mackay, a physicist in England, and in his wonderful book, "Sustainable Energy," among other things, he says, "I'm not trying to be pro-nuclear. I'm just pro-arithmetic."
Cuando sumas todo esto Saul Griffith hizo cálculos y comprobó que conseguiría 13 teravatios limpios de energía del viento, el sol y los biocombustibles, y ese área sería aproximadamente del tamaño de los Estados Unidos, un áerea al que él se refiere como "Renovablistan".