metric tons in avoided greenhouse gas emissions from energy efficiency, cogeneration and flare reduction since 8.4 million 2012 Corporate Citizenship Report exxonmobil.com30 Mitigating GHG Emissions in our Operations At ExxonMobil, our strategy to reduce GHG emissions focuses on increasing our own energy efficiency in the short term, implementing current proven emissions-reducing technologies in the medium term, and developing breakthrough, game-changing technologies in the long term.