WHEAT
CO2 emissions (in kg per litre)
gasoline: 
2.3
wheat ethanol:
1.5
CO2 saving: 36%
Leading producer: EU, China
Energy input vs energy output: 1:1.7
Yields per hectare: 2500 litres
WHEAT
CO2 emissions (in kg per litre)
gasoline: 2.3
wheat ethanol:1.5
CO2 saving: 36%
Leading producer: EU, China
Energy input vs energy output: 1:1.7
Yields per hectare: 2500 litres