Citi Addressing Climate Change Citigroup (ticker: C) has already made its mark in 2008 on the issues of climate change and sustainability. In February, Citi Bank, JP Morgan and Morgan Stanley jointly released the Carbon Principles. The Carbon Principles offer guidelines for lenders to US power companies, in light of the increase in financial risks power companies are expecting from pending carbon regulations. At the end of March, Citi Bank became a Ceres network company, joining with over 70 companies that work as members of Ceres to tackle sustainability and climate change. In January, Ceres’ report “Corporate Governance and Climate Change: the Banking Sector” was released. The report scored Citi as the highest ranked US bank for their climate change governance practices.