William Kamkwamba, 14, used scraps from a local junkyard in Malawi to provide electricity to his parents' home. Now he's celebrated internationally. (Toronto Star)

In the world's oldest and largest refugee camp, nearly 230,000 people struggle to survive, and have nowhere else to go.

A soldier returned from Afghanistan tells his tale... and then we see the surprising rest of the story.

The issue of global warming is captured in a video created entirely by using 20,000 still images taken over 20 days.