New Delhi, multiple countries
Indian children ride in a cart on the way home from school in the outskirts of New Delhi
ATTENTION EDITORS - 15 OF 21 PICTURES TO MATCH PACKAGE 'WORLD POPULATION - SEVEN BILLION' - TO FIND ALL PICTURES SEARCH 'POPULATION-BABY/'
Indian children ride in a cart on the way home from school in the outskirts of New Delhi in this file picture taken, February 26, 2001. The world?s population will reach seven billion on 31 October 2011, according to projections by the United Nations, which says this global milestone presents both an opportunity and a challenge for the planet. While more people are living longer and healthier lives, says the U.N., gaps between rich and poor are widening and more people than ever are vulnerable to food insecurity and water shortages. REUTERS/Pawel Kopcznski/Files (INDIA HEALTH SOCIETY IMAGES OF THE DAY) BEST QUALITY AVAILABLE