Himalayan hydropower buildout: Expert says risk management is key

Following devastating floods in Nepal and Tibet, Access Asia takes a closer look at the fragile state of the Himalayan mountains. Dr Arun Bhakta Shrestha, an expert on the environment and risk management in the Himalayas, explains why it's so difficult to detect glacier movements in advance and says that the tragedy could serve as an opportunity to improve the way nations develop infrastructure in the resource-rich region.