For research into creating emergency shelter i am looking at one of mankind's oldest and most trusted construction materials...MUD! This material is extremely useful and exists in vast quantities below our feet and is also Eco-friendly.
However mud has some characteristics that people are not aware of such as its thermal qualities mud can be extremely warm due to its mass and mud also has the ability to cool itself. These hidden properties are the reason our ancient ancestors chose to use this useful material and to this day all over the African continent villages and small towns are still created using mud.
Recently the scottish government has started to consider using clay and mud in the creation of homes instead of cement because of the availability and its thermal properties. Below is a link to a Times article about the use of mud in scottish homes.