It was an odd year for green business, and it began with some mixed signals about how far companies were coming on sustainability. A GreenBiz report indicated that progress had slowed or even regressed, but MIT and BCG also declared that sustainability had reached a “tipping point” with more companies putting sustainability “on the management agenda.” Your comment ? (The full article at HBR, at : http://blogs.hbr.org/winston/2012/12/top-10-sustainable-business-st.html )