did anyone see the ben fogle program the other night? 'secrets of scotts shed' or something, very good, they discussed the lack of heating/lighting/cooking fuels as the most likely man made reason for the deaths, the climatic issues exposed the weakness in equipment by delaying them beyond their supplies limits. leaking of fuel via leather gaskets on the fuel bottles. really enjoyed it, but it did show the segregation/intergration aspects of the different expeditions of the time. it probably did contribute in a morale type way, they also discussed the cook but don't remember much about the diet being discussed, might have to watch it again in case i missed that bit.