A woman shields from the sun in Beijing’s central business district. Photographer: Mark Schiefelbein/AP Photo Bloomberg News Scorching temperatures across China are straining power grids as the country tries to ramp up industrial activity to support the economy, while farmers are scrambling to save crops such as rice and cotton from the impact of the searing heat. Several regions have already posted record power demand and have cut electricity to factories at peak hours to make sure enough is available to keep air conditioners running. Rice crops and fruit and vegetables in Southern China are at risk of being damaged by the heat, and melting glaciers are causing floods in the cotton-growing regions of Xinjiang. The disruptions in the world’s No. 2 economy are yet another sign of the risk posed by increasingly frequent extreme weather events caused by climate change. India, Europe and the US have also been […]