As my jet climbs out of O'Hare Airport, the city of Chicago, spread out below my window, looks like a carnival.
Streetlights extend to the horizon.
Gas stations, car lots, fast food joints and shopping centers shine like sideshow entrances. Think about what happens to all that light. Some of it reflects off water molecules and pollution, creating a dome of light over our cities and towns. The dark side of light pollution For almost three decades, this country has been working to reduce air pollution. Some cities have taken steps to deal with noise pollution.