Researchers said the flood was caused by a "compound crisis" shaped by long-term warming, glacier retreat, permafrost thaw and geological instability. More than 1,400 people were killed and thousands are missing following the deluge on 26 August. Key points and original sources are listed below.

• Researchers said the flood was caused by a "compound crisis" shaped by long-term warming, glacier retreat, permafrost thaw and geological instability. A 2015 earthquake is also thought to have played a role.S1

• More than 1,400 people were killed and thousands are missing following the deluge on 26 August.S2

• Climate change was a core factor in last month's deadly glacial mountain collapse on the China-Nepal border that killed more than 1,400 people and left at least 6,600 missing, scientists said Thursday.S3