However, those ten firms account for more than 20 percent of total greenhouse gas emissions from all companies in the fund. (nyenvironmentreport.com)
By some calculations, livestock may contribute nearly 15 percent of total greenhouse gas emissions, more than the entire transportation sector. (treehugger.com)
It is a central component of the state's broader strategy to reduce total greenhouse gas emissions to 1990 levels by 2020 and 40 percent below 1990 levels by 2030. (c2es.org)