Yousuf fled with his family from his home in eastern Afghanistan eight years ago to escape the war, but he couldn’t escape tragedy. In the capital, Kabul, five of his children died, not from violence or bombings, but from air pollution, worsened by bitter cold and poverty. One by one over the years, each of the children got chest infections and other maladies from the pollution and never made it to age seven, he told The Associated Press.
