Lastly, deforestation is the main thing that leads to the greenhouse effect because when people cut more trees, it means of increasing the amount of carbon dioxide in the layer atmosphere. Moreover, it is not only deforestation that can increase the amount of carbon dioxide in the layer atmosphere but also including of driving, flying is the factor which is lead to environmental and sustainable development problems. Hence, people could not be used more of energy in order to save the worlds which there are many ways to do to reduce problems of environment that I mention before on the detail of this article.