Cairo tries to escape life under a black cloud (AFP via Yahoo! News) Ranked one of the most polluted cities in the world, Cairo is once again under the shadow of a highly toxic black cloud which mysteriously settles above the huge city every autumn. [News Source]

Cairo tries to escape life under a black cloud (AFP via Yahoo! News) Ranked one of the most polluted cities in the world, Cairo is once again under the shadow of a highly toxic black cloud which mysteriously settles above the huge city every autumn. [News Source]