The world's population is estimated to hit 7 billion people on Monday. Around the world, developing countries are struggling for essentials like food and water. Developed countries continue expanding, helping perpetuate a cycle of poverty that impacts world resources.
1 of 7
A baby gestures minutes after he was born inside the pediatric unit at hospital Escuela in Tegucigalpa October 21, 2011.
Edgard Garrido/Reuters/Edgard Garrido/Reuters
2 of 7
Residents crowd in a swimming pool to escape the summer heat during a hot weather spell in Daying county of Suining, Sichuan province in this file picture taken July 4, 2010.
3 of 7
People gather to get water from a huge well in the village of Natwarghad in the western Indian state of Gujarat, in this file picture taken June 1, 2003.
Amit Dave/Reuters/Amit Dave/Reuters
4 of 7
Combines harvest wheat on the Stephen and Brian Vandervalk farm near Fort MacLeod, Alberta, in this file picture taken, September 26, 2011.
Todd Korol/Reuters/Todd Korol/Reuters
5 of 7
A view of deforestation on Indonesia's Sumatra island, in this file photo taken August 5, 2010.
6 of 7
A view of the city skyline from the Shanghai Financial Center building, October 25, 2011.
Carlos Barria/Reuters/Carlos Barria/Reuters
7 of 7
A view of a residential building in Shanghai in this file picture taken, March 18, 2009.