What’s bad for the environment is also bad for the bottom line. That’s what Warren Buffett is arguing in the latest sustainability report from Johns Manville, a building-materials manufacturer owned by Buffett’s company Berkshire Hathaway. In a short note toward the beginning of the report, Buffett writes that “taking shortcuts is not the pathway to achieving sustainable competitive advantage, nor is it an avenue toward satisfying customers” — evidently a reference to the importance of keeping a business green-friendly and compliant with rules. Buffett — investor, philanthropist, tax-the-rich cheerleader and occasional Obama whisperer — seems to put great stock in the idea that environmental prudence goes hand-in-hand with profit.