A Walipina is a semi-underground greenhouse, issuing from the Aymara tradition, and producing 4 times more with 80% less water ! At an altitude of 4 500 meters on the Altiplano, this is an ideal way of overcoming common obstacles such as low temperature, wind and lack of water. So with the help of THE MEAL also present in Nepal, and in collaboration with CSRC and Voix Libres, the same technique is transferred to the Himalaya…