Cap and trade was supposed to be the solution to curbing carbon emissions, but sometimes the best plans have unintended consequences. The Carbon Rush takes us across four continents to see up-close the projects working through the United Nationsā€™ Kyoto Protocol-designed Clean Development Mechanism. These projects often have negative impacts on local communities. Adding market incentives to create a new industry may benefit project owners, but the poorest and most vulnerable suffer loss of land, jobs and even life.