You should spend about 40 minutes on this task. Write about the following topic: Some people today believe that the world's increase in population is unsustainable and will eventually lead to a global crisis. Other people believe that world population increase is necessary and beneficial as it creates the growth of the world's economy and society. Discuss both these views and give your opinion. Give reasons for your answer and include any relevant examples from your knowledge or experience. You should write at least 250 words.