China sees record rains and heat as weather turns volatile around the world

People ride a bike in the rain in Hezhou, southern China’s Guangxi Zhuang Autonomous Region (Liao Zuping/Xinhua/AP)

China is experiencing its worst heatwave in decades after rainfall hit record levels in June.

Extreme heat is also affecting Japan, while volatile weather is causing trouble for other parts of the world in what scientists say has all the hallmarks of climate change – with even more warming expected this century.