"The Carbon Age" (Rebroadcast)
Carbon is one of the key building blocks of life as we know it. It can be found in human DNA, in tennis rackets, and in the bubbles of popular soft drinks. But "carbon footprint" has also become one the buzz phrases in the debate over how best to reduce pollution that contributes to global warming. Join Kojo as we look at the importance of this core element -- and the role it plays in our planet's health.