At Azaz camp for displaced Syrians, more than 12,000 are housed in the 1000 tents, but there's a waiting list for 1400 more tents, and in the meantime families must live in nearby villages, which are subject to government bombing raids. The tents are heated with a simple coal stove, but the gases, which have no room to escape in the close quarters, cause respiratory ailments. (Andree Kaiser/MCT)