A young girl working in Guatemala. Photo: noesnjoc (flickr)

According to Unicef estimates, one in six children (158 million) aged 5-14 are engaged in child labor. These kids aren't working at the local shopping center. Rather, they sell goods on the street, clean houses, or work in small factories and stay away from the watchful eye of local law enforcement or inspectors.

Despite being considered exploitative by many organizations and countries, child labor is still common and occurs in countries like India and Guatemala, as well as the United States and the U.K.

The problem of child labor is complex and stems from adult poverty. For many poor families, working children contribute much needed income that prevents their family from falling deeper into poverty. Product boycotts and factory raids over child labor can sometimes prove more harmful as children turn to more dangerous jobs like mining and prostitution to earn money.

Slate Magazine's Today in Pictures captures images of working children dating back to 1942. What's most striking to me is how young and tiny some of the children are in the photos. I'm used to seeing adults performing the jobs that these small children are doing.

Photo: Michael Foley Photography (flickr)

Move over Italy. Developing countries are the up-and-coming leaders of the leather market, boasting cheaper production costs and fewer environmental regulations.

There is a good chance that your soccer ball, leather belt or aviator jacket was tanned in one of Pakistan’s 2,500 leather factories in the industrial centers of Karachi, Kasur, and Sialkot. The factories mostly employ poor people from neighboring areas, especially young children who will work for cheap wages. In one town alone, Kasur, more than 700 children worked in leather-tanning factories, according to the International Labor Organization.

NPR's Marketplace recently profiled a 17-year-old Pakistani boy, Mohmen, who's worked in the tanning industry since he was 13.

Like so many of Pakistan’s child workers, Mohmen has sacrificed his childhood to support his family. He has toiled in a hazardous leather tanning factory for four years. Six days a week Mohmen moves animal skins from a cart to a conveyor belt.

His heavy workload is not the only thing in the factory that will begin to take a toll on Mohmen. A 1996 Swedish study found that leather tannery workers experience an increased risk of cancer due to their exposure to toxic chemicals.

Mohmen would like to leave and go home to his family but he knows that he cannot. “How can I go home if I have to keep paying somebody? I keep paying what my family owes.” He is just a kid, but he is in an adult world where there is no rest from poverty's harsh realities.