The rising intake of fat also will cause colon cancer to increase, while worsening air pollution and a surge in the number of smokers will the cause the incidence of lung cancer to rise.
脂肪攝取量增加，也會使結腸癌患者繼續增加。此外，空氣汙染加上吸煙人口增加，肺癌還會持續上升。