Aspen Times: Daniel Nocera is an unabashed proponent of ramped-up development of solar energy. A professor of energy and chemistry at the Massachusetts Institute of Technology, he says that solar alone, among the various renewable sources, can do the heavy lifting needed to meet future demand. And what a demand he foresees: Barely more than half of today’s 6.2 billion people on the planet lead energy-intensive lives. Should they get what you, me, and most everybody in the developed countries take …