Due to the climate warming effects the glacier lakes of the Khumbu has started to form and
grow in size and the natural moraine dams give poor support to the expanding lakes. In order
to find out how much the sherpa people wants to contribute to build the safety measures that
can protect them from the effects of a glacier lake outburst flood this paper investigates their
willingness to contribute with work time. The work time can be used to work on strengthening
the dam and settlements along the upper Dudh Kosi river. The willingness to contribute was
investigated to see if it is affected by others contribution and if the contribution levels varies
with socioeconomic variables such as income, perceived risk level and gender.