… increase the political feasibility of the carbon charge by not penalizing heavy energy users, Yale found the concept to be complex and challenging to communicate. “People have the … increase the political feasibility of the carbon charge by not penalizing heavy energy users, Yale found the concept to be complex and challenging to communicate. “People have the … increase the political feasibility of the carbon charge by not penalizing heavy energy users, Yale found the concept to be complex and challenging to communicate. “People have the …