The Difference between North Korea and South Korea

In case you haven't seen this before, here is a depiction of the amount of light being given off across the earth at night. This particular photo focuses on North and South Korea. As Kent says,

Tyranny truly plunges societies into darkness - in more ways than one.

I expect that many countries will want to buy North Korea's unused Kyoto carbon quotas....... or at least they would if any of them really intend to take their Kyoto commitments seriously (not that I am arguing they should --- see here).

Is there any chance the photo was photo-shopped to create this effect? I've seen it before, so if it was photo-shopped, it had to have been done quite some time ago.