Greenhouse gases like carbon dioxide and methane that absorb energy from sunlight and trap in the atmosphere — causing environmental problems — are continuing to accumulate. A lot of those gases are emanating from waste materials people produce. New findings show the damage being caused is increasing. But a solution to reversing the trend may come from recycling efforts to turn trash into treasure. Fulton Schools Professor Bruce Rittmann, director of ASU’s Swette Center for Environmental Biotechnology, sees potential in a plan to capture greenhouse gases to put them to productive use. But Rittmann cautions that there will be challenges. While the concept of such carbon capture and reuse is a simple one, the execution of such an operation can encounter complications, he says. (Access to the full content of the Arizona Republic is available only to subscribers.)