Indonesia's capital is home to almost 42 million people, according to a new United Nati estimate.

Cities account for 45 percent of the world's population, more than double the share in 1950.

LONDON/DAKAR, Aug 14 (Reuters) - (This Aug. 14 story has been refiled to clarify the number of AU member states in paragraph 3) The African Union has backed a campaign to end the use by governments ...