7%
Amount by which the lights of Los Angeles slow the usual nighttime cleansing of air pollution, according to preliminary findings by scientists from the U.S. National Oceanic and Atmospheric Administration and the University of Colorado. The lights destroy significant numbers of airborne nitrate ions, which break down auto and smokestack emissions while the sun is down.
Connect:
Jeez Jon, what have I told you about that porch light?
We’ve switched to fluorescent!