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.
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)
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. (Reuters/Reuters)
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)
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)
A view of deforestation on Indonesia's Sumatra island, in this file photo taken August 5, 2010. (Beawiharta/Reuters/Beawiharta/Reuters)
A view of the city skyline from the Shanghai Financial Center building, October 25, 2011. (Carlos Barria/Reuters/Carlos Barria/Reuters)
A view of a residential building in Shanghai in this file picture taken, March 18, 2009. (Reuters/Reuters)
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