OK I just have to write one more post before I leave because I will be away for Earth Day. Today my 4 1/2 year-old son came home with a note in his backpack that was entitled "Dark Sky for Earth Day." The note was from the second grade and had images just like the ones you see in this post. Above the photo it said, "Wow! This is one fantastic photo, isn't it? Think again. This is a view of the world and the light we waste."And since I love what the second grad wrote I am copying it word for word for you below.
A really fantastic photo would show nearly all black with a few little white dots. A special kind of pollution has changed the night sky -- light pollution. Light pollution comes from millions of street lights, cars & trucks, homes, and office buildings. At night astronauts in space can see the exact shape of the United States. Our nation glows because of the lights we use and it takes energy to keep those lights on. Light pollution is a problem for astronomers who cannot study the star and people like us who cannot see the Milky Way. At the same time we're wasting huge amounts of energy. On March 29 of this year many cities around the world (like Chicago and Sydney, Australia) decided to take action. They turned off many lights for one hour from 7:00-8:00 p.m. in order to see the sky and to save energy and money. So -- second grade would like to have our school be a part of this in our own small way. On Earth Day, April 22nd, we encourage you and your family to turn off the lights in your house from 7:00-8:00 p.m.
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