People in the West throw away millions of old computers every year. Hundreds of thousands of them end up in Africa, where children try to eke out a living by selling the scrap. But the toxic elements in the waste are slowly poisoning them.

According to the Bible, God rained down fire and brimstone to destroy the cities of Sodom and Gomorrah. "Sodom and Gomorrah" is also what officials in Accra, Ghana, have come to call a part of their city plagued by toxins of a sort the residents of the Biblical cities couldn't even have imagined. No one sets foot in this place unless they absolutely have to.

Acrid, black smoke drifts over the huts of the slum. The river, too, is black and thick like used oil, as it carries empty computer cases toward the ocean. Fires are blazing on the bank across the way, fueled by foam and slivers of plastic. Their flames consume the plastic material from cables, plugs and motherboards, leaving behind only metal.

There's a wind today, blowing the smoke from these infernal fires low across the ground. Breathing in too deeply is painful to the lungs, and the people tending the fires are sometimes nothing more than vague, foggy silhouettes.

One small, stooped figure makes his way between the fires. With one hand, the boy drags an old speaker through the ashes and dirt, pulling it along behind him on a cord. His other hand clutches a bag.

The speaker and the bag are all that belong to this boy, who bears the unusual first name of Bismarck, aside from the T-shirt and pants he's wearing. Fourteen-years-old but small for his age, Bismarck scours the ground for anything the older boys might have left behind after burning a batch of computers. It might be bits of copper cable, the motor from a hard drive, or leftover pieces of aluminum. The magnets in his speaker also pick up screws or steel plugs.