Related Resource: NPR, May 2014
- KESTENBAUM: Here’s the answer he got. In Babylonian times, 4,000 years ago, a day’s labor would buy very little light. You could buy enough light to illuminate a room but not for very long.
- NORDHAUS: Maybe 10 minutes. It was really expensive.
- KESTENBAUM: A day’s wages got you 10 minutes of light.
- KESTENBAUM: By the time Bill Nordhaus does his light study in the 1990s, if you work a day, how many hours of light do you get?
- NORDHAUS: Maybe 20,000.
- KESTENBAUM: Twenty thousand hours?