How did you lessen the pollution?

To lesen the pollution is not that easy. First, you need to turn off the lights when you are not in the room. You may also want to chang the regular light blubs to the recycle bulbs that way you may lessen the light pollution. If you want to lessen the air pollution, then you may drive less cars, and not smoke. The only way to make the lessen the noise pollution, is that to keep the voice softer.