Cars

I pictured these cars in italy. it shows how many automobiles or transport with petrol these days exists. this is just a small number of the cars, which exists in our world, and they are a great threat to us all and to our descendents, because they pollute our precious environment and cause differnt kinds of risks to our air and everything connected with it. these days almost every man has its own car, that makes it rough about 6billion (ok, it's smaller number, but still too much). unless we will start doing something for environment we soon will be without fresh air ...