Night: God saw that it was good

City Lights Spike Air Pollution : Discovery News: The glow of city lights obliterates light-sensitive molecules that scrub the atmosphere by night, adding to the problem of air pollution, a new study shows. The lights prevent production of a particular type of nitrogen-oxide molecule known as a nitrate radical, which forms from reactions of nitrogen dioxide with ozone. It bonds well with pollutants in the atmosphere, but breaks down quickly in the presence of light. 'It doesn't exist during the day. At night, it shows up. It reacts with pollutants and cleans them up.

Editor: One more marvel of God's creation.