Describe how is people effects about environment

Healthy environment is the most important thing to be alive. In fact, by changing time and developing technology and also declining man activities, there has been lots of causes to have a bad environment and the main problem is reducing Ozon layer. On the other hand, as we know Ozon layer keep us safe from hurt by X-ray, also this problem is causes to melting polar ice and even hurt animals fertility. From my perspective, healthy environment can boost happiness and it can improving the humans life grade as well. On the other hand, by using public transportation there is more chance to keep the city clean and have less pollution.