The content originally appeared on: CNN CNN - Thousands of emergency responders are battling to contain fast-spreading wildfires in China's southwestern city of Chongqing amid a weeks-long, record heat wave in the region. The fires, which have been visible at night from parts of the downtown area, have swept forests and mountains around the mega city in recent days. On social media, residents in downtown Chongqing complained of smelling smoke inside their apartments, while others posted pictures of burning embers […]