人口增长类
The picturedepicts a scene in which .The scene is presented in an artistic and ironic manner. Crowds of people arecrammed in . Furtherexamination reveals that .
Apparently,the picture symbolizes that humans, with such a huge population, may one daysuffer from the exhaustion of earth resources. Take for example. Given the fact that , we find that . To make it worse, .
Ifthe conflict between population boom and shortage of resources is not properlycontrolled, we have every reason to hold a pessimistic perspective towardshuman’s future on Earth. Perhaps eventually we would face the situationsuggested by the picture, that is, . Accordingly, I strongly recommend that the whole globe launchaggressive programs to address this fatal contradiction.