单项选择题

Questions 21 to 22 are based on the following news. At the end of the news item, you will be given 10 seconds to answer the questions. Now listen to the news. Which of the following is not mentioned as an effect of climate change

A.It will generate more intense rainstorms.
B.It will generate more intense heat waves.
C.It will affect the growth of economy.
D.It will generate more intense droughts.