The study looked at how rainfall patterns in Guangzhou, China have changed over the past 60 years. They analyzed data from 7 weather stations in the region and found that more rain falls in the eastern coastal areas. Overall, the amount of rain each year has been increasing. They also found that extreme rainfall events are becoming more frequent and intense, especially in the summer. This suggests that the climate in Guangzhou is changing, leading to more heavy rain in the region.