This week Accenture published the largest CEO study on sustainability ever conducted globally, with 766 CEOs surveyed worldwide in addition to 50 extensive one-to-one interviews with CEOs across industries such as Unilever, HSBC, Diageo, GSK, Royal Mail and National Grid. The findings show that sustainability has weathered the storm of the economic crisis with the downturn doing little to dampen corporate commitment to sustainability - 74 percent of the CEOs surveyed actually aligning sustainability more closely with core business drivers such as revenue growth, cost reduction, risk management, brand and reputation. It is clear that CEOs (93 percent) see sustainability as critical to the future success of their businesses and 80 percent see a new era of sustainability reshaping their business context and what it takes to be a high performance business over the next decade. However, the big challenges are shifting from strategy to execution, with 50 percent of CEOs reporting implementation as the biggest barrier to progress.