Statistics show that the rainfall intensity in northern provinces in China has increased in recent years, especially after 2008, Wu said.

FORBES: On Floods, China Blames Climate Change

While hundreds of studies around the world have linked climate change to phenomena including the increased frequency and intensity of hurricanes and other storms, changing rainfall patterns, drought, coastal flooding, changing disease patterns and the migration of human populations.

CNN: Environmentalists hope UN talks tough on climate change