Barron’s – How much of a company’s journey toward sustainability is driven by the personal passions of its CEO? Based on the conversations Barron’s had recently with several corporate chieftains, quite a lot. That’s one of the insights from our second annual sustainability ranking of public companies… To create the rankings, Calvert Research and Management analyzed the 1,000 largest publicly held U.S. companies (by stock market value) and scored them on more than 200 key indicators and 28 issues. Calvert then sorted the data into five key categories: shareholders, employees, customers, planet, and community. (The shareholders category might include executive compensation, for example, and the customers category might include data security or product safety.) Each corporation received a rating from zero to 100 in each category. Finally, Calvert produced a single rating for all of the companies, weighted according to how material each category is for their industry: Emissions are less critical for a bank’s score than they are for a trucking company’s, for example. It also excluded companies that didn’t meet the Calvert Principles for Responsible Investment…”