If you want to make the world a better place, it might be surprising, but a huge industry -- like concrete or construction -- might be the perfect fit. You see, if concrete were its own nation, it would be the third largest emitter of greenhouse gasses in the world -- behind the US and China. Talk about impact. Yesh talks with Christie Gamble, the Senior Sustainability Director at a clean tech company called CarbonCure Technologies, an XPrize winner, that’s on a mission to decarbonize the concrete industry. A huge part of CarbonCure’s success is Christie’s role as a bridge builder -- a job skill that is vital to any green job.