Archived

Artificially lit surface of Earth at night increasing in radiance and extent

Continued improvement in the luminous efficacy of light sources and increases in gross domestic product (GDP) have resulted in tremendous growth in artificial light use over several centuries. Historically, lighting has been subject to a strong rebound effect, in which increases in luminous efficacy result in correspondingly greater light use rather than energy savings.

Read More: Artificially lit surface of Earth at night increasing in radiance and extent →