This paper puts into highlights the flood threat in Bhutan due to lake outburst risk in the retreating glaciers of Himalaya's chain. The study led by the Department of Geology & Mines, the Ministry of Economic Affairs and the Royal Government of Bhutan is taking part in disaster risk prevention. Projects aim at preventing local populations from that risk and settling a sustainable prevention program. The aditional link below (page no 3) is provided by the Bangladesh Online Research Network. It reminds the lake outburst risk in Bhutan and it consequencies on vulnerable populations.