Arunachal Pradesh Chief Minister Pema Khandu on Wednesday warned the state Assembly of environmental disasters, including floods, for his state and neighbouring Assam if India does not respond to China's building a mega dam on the Yarlung Tsangpo River in Tibet's Medog district. The Tsangpo flows through Tibet before entering Arunachal Pradesh as the Siang. It becomes the Brahmaputra in Assam and the Jamuna in Bangladesh before it empties into the Bay of Bengal.