We are learning about the atmosphere in class. As you can read in our book, air pollution is the presence of various substances or types of energy in the atmosphere in quantities that are harmful to living beings and the environment. Gases, solid particles.... perhaps these are the most known pollutants. But there are more. Noise, for example, is a type of energy that causes important effects on living beings. And light? Can light pollute our cities?
In my opinion we are lucky because some of you live in the city and some in villages surrounding Granada. I want to propose you an experiment. I want you to look at the sky at night. Take a sheet of paper and cut a frame of 3 cm each side. Through this window look at the sky to the area with the highest number of stars. Count them!!! We will discuse your results in the classroom.
Please, write comments with your conclusions!!