South Africans Construct Award-Winning Zero Carbon Home

A team of South Africans has won a Cape Town competition to create a zero-carbon home, just ahead of Earth Day on April 22. Experts say the house design, which incorporates solar power, passive cooling, rainwater harvesting, and a food garden, could help reduce the nation's carbon footprint. Vinicius Assis reports from Cape Town, South Africa.Camera: Vinícius Assis