Pressing problems facing humankind today

Nowadays, we, humankind, live in a convenient and comfortable world. Everywhere is filled with buildings and automobiles. The transportation is convenient and the information is easily accessible. That’s because of the science and technology’s advancement. However, as our living surroundings become more and more advanced, the natural environment is being seriously damaged. The environment problem has become a pressing problem to humanity today.
Human being is a selfish creature; they recklessly destroy forests, rivers, oceans and wetlands just for their own benefits. In addition, they do not ever respect the environment, only concerning what they want now. As a human, I feel ashamed. Nevertheless, forests, rivers, oceans and wetlands are closely related to us. Can you imagine that one day Mother Nature treats us with the way we treated her? Therefore, if we do not face the problem, we will run into terrible backwashes in the future or just NOW.
Some serious problems have occurred such as ozone holes, El Nino effects, global warming, and extreme weathers. These phenomenons have great impacts on our world. According to a report, global warming will cause sea levels to rise. Horribly, sea levels on the earth will rise by more than 100 meters if Antarctic glaciers completely melt. Then, a lot of big cities, such as Taipei and New York, would be flooded and under water. The unusual weather also causes many people’s death. What a terrible sight it is!
What is more, the changing of environment also inflicts negative effects on animals especially the endangered species. A lot of nature reserves have been depredated in the process of the development. It cause a great deal of ecological problems, too.
Hence, we shouldn’t exploit the nature at random; because the earth does not belong to ourselves. It belongs to everyone who lives on the earth and even our descendents. Most importantly, we should cherish and be friendly to our Nature. Remember, before you try to achieve your ambitions, you should think twice whether it will hurt the environment or not. Thus, the whole creatures on earth will become more and more harmonious.