A new low-cost solar technology for environmental cooling

Space cooling and heating is a common need in most inhabited areas. In Europe, the energy consumed for air conditioning is rising, and the situation could get worse in the near future due to the temperature increase in different regions worldwide. The increasing cooling need in buildings, especially during the summer season, is satisfied by air conditioners, which often make use of refrigerants with high environmental impact and also lead to high electricity consumption. So, how can engineers reduce the energy demand for building cooling?