M. Santamouris (EDT)/ D. N. Asimakopoulos/ V. D. Assimakopoulos/ N. Chrisomallidou/ N. Klitsikas/ D. Mangold/ P. Michel/ M. Santamouris/ A. Tsangrassoulis
（1）
Both the number and percentage of people living in urban areas is growing rapidly. Up to half of the world's population is expected to be living in a city by the end of the century and there are over
