Bill McDonough teams up with Stephan Dolezalek of VantagePoint Venture Partners to comment for a McKinsey “What Matters” column: their topic is the carbon-free opportunity. William McDonough is an architect and the founding principal of design firm William McDonough + Partners, which focuses on ecological and socially intelligent architecture. Stephan Dolezalek has spent 23 years in Silicon Valley working exclusively with technology-driven companies. He joined VantagePoint Venture Partners in 1999 and currently heads up VantagePoint’s CleanTech practice. McKinsey’s listening to what these leaders thing matters most; are you? Check out their conversation.