China has seen a "marked increase" in environmental emergencies involving tailings ponds, according to the country's top environmental watchdog, underscoring the difficulties authorities face in regulating these mineral waste dumps.
Caixin
Leaks on the rise at China's mining waste dumps
Environmental watchdog sees 'marked increase' in emergencies involving tailings ponds
The ancient Tonglu Mountain copper mine site was discovered in Hubei province in 1973.
Read Next
Latest on Caixin
