According to the article 1, nowadays engineering has to counteract many intricate and formidable challenges related to the daily life and work of humans. One of them is to solve the problems of pollution. Actually, pollution problems have been prevalently threatening our world for a long time which can severely degrade the living environment unless an optimal solution is made immediately. Acid rain, smog, gradually smelting iceberg at the poles, and global warming are the performances of the polluted globe. In this regard, conserving and refining the environment are the new missions of the engineering in this century.
First of all, concerning the environment is the next step in the growth of engineering and technology. In the past, engineering only focused on the creating machines which made work easier, and then engineers upgraded their products to satisfy different needs of humans which include convenience and safety for clients but not for surrounding yet. Therefore, the evolution order will require our modern engineers to revise the engineering creatures which have not harmonized with the environment yet.
Another difficult challenge of engineering is to solve the problem involved to the energy consuming, handling with exhaust, and discovering a novel kind of energy safe to environment. The excessively arising population is becoming the main factor which increases the number of energy consumers. In fact, fossil fuel has been the most favorite and popular kind of energy that is economically feasible. The more there are oil consumers, the more air is polluted. Oneday, people can die of lack of fresh air before oil sources are used up unless there is a freshly alternative kind of energy.
Finally, I want to emphasize that the target of engineering field is not only to create new technical machines and robots but also to make the human life more safe, sustainable and healthy. Thus, creating new machines harmonizing with the environment is a big mission of engineers in the twenty first century.
