Carbon intensity is expressed in grams of carbon dioxide equivalent per megajoule of energy provided by that fuel. (greencarcongress.com)
For an analysis of vegetable products, emissions of carbon dioxide may be calculated from an energy analysis based on known amounts of carbon dioxide emissions per megajoule of energy used. (academic.oup.com)
The baseline is set at 96 grams of carbon for megajoule of energy, declining by 10 % by 2020. (treehugger.com)