From leftover food to packaging materials to outdated or broken technology, humans produce an enormous amount of waste. In response to this problem, the popularity of recycling has grown rapidly in recent years. Find out how experts are working to find new recycling methods and cut down on the amount of trash that ends up in landfills, and discover whether you've got what it takes to help make some of tomorrow's most important recycling innovations.

Cycles through time -- A world of recycling -- On the job -- An interview with recycling analyst Sherill Baldwin -- From curbside to store shelf.