How a glacier collapse may have caused Nepal-Tibet disaster A huge piece of ice that fell thousands of metres from a glacier into a river below is believed to have unleashed the catastrophic floods in Nepal and Tibet that have killed at least 180 people. Key points and original sources are listed below.

• How a glacier collapse may have caused Nepal-Tibet disasterS1

• A huge piece of ice that fell thousands of metres from a glacier into a river below is believed to have unleashed the catastrophic floods in Nepal and Tibet that have killed at least 180 people. More than 1,300 people remain missing following the disaster, inc...S2