GREET Model

For a given vehicle and fuel system, R&D GREET separately calculates the following: • Consumption of total energy (energy in non-renewable and renewable sources), fossil fuels (petroleum, fossil natural gas, and coal together), petroleum, coal and natural gas; • Emissions of -equivalent greenhouse gases - primarily carbon dioxide (), methane (), and nitrous oxide (); • Emissions of six criteria pollutants: volatile organic compounds (VOCs), carbon monoxide (CO), nitrogen oxide (), airborne particulate matter with sizes smaller than 10 micrometre (PM10]), particulate matter with sizes smaller than 2.5 micrometre (PM2.5), and sulfur oxides (). • Water consumption R&D GREET includes more than 100 fuel production pathways and more than 70 vehicle/fuel systems. ==External links==