Have you heard about Nissan's Eco-friendly vehicles?There are 4 categories.
1.Fuel Cell Vehicle(FCV)
2.Hybrid Vehicle(HV)
3.Low Emmision Vehicle(LMV)
4.Compressed Natural Gas Vehicle(CNGV)

Features
FCV -sole emmision is water.
HV -low CO2 emissions and clean exhaust gas emissions.
LEV -75% fewer exhaust emissions than the level of the 2005 exhaust emissions standards.
CNGV-The amount of NO2 emissions from compressed natural gas vehicles (CNGVs) are considerably less than those from vehicles that rely on diesel