Questions 14 to 16 are based on a talk on the world’s air pollution. You now have 15 seconds to read Questions 14 to 16.

Which of the following statements is NOT true according to the passage

A．Carbon dioxide is the No. 1 greenhouse gas.
B．Emission of sulfate and soot particle has significant global effects.
C．Fight against the pollution won’t win without international cooperation and action.
D．Ice in Greenland, the Arctic and Antarctica is melting quickly.