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(Click for frequent words.) 66 carbon emitting 59 greenhouse gas emitting 59 polluting 58 CO2 emission 57 emmission 57 CO2 emissions 56 tailpipe CO2 emissions 56 CO2 emitters 56 carbon dioxide emission 55 #g/km CO2 [002] 54 emmisions 54 emission 54 carbon emission 54 emit #g/km 53 fossil fuel 53 Ford Fiesta ECOnetic 53 C# emissions 53 #g CO2/km [001] 53 co2 emissions 53 Ibiza Ecomotive 53 carbon dioxide CO2 emission 53 carbon dioxide emissions 53 emissions 53 emmissions 52 carbon emitters 52 CO -2 emissions 52 emits #g/km [001] 52 Compressed natural 51 emitting #g/km 51 carbon dioxide CO2 emissions 51 Carbon dioxide emissions 51 Co2 emissions 51 cleanest diesels 51 Flexifuel 51 carbon emissions 51 sulfur fuels 51 flexfuel 51 #g CO2/km [002] 51 ecoFLEX 51 CO2emissions 51 Polo BlueMotion 50 CO ² emissions 50 Carbon dioxide emission 50 CO2 emmissions 50 carbon dioxide emitters 50 emitting CO2 50 GHGs 50 conventional combustion engines 50 emissons 50 pollutant emissions 50 CO2 50 Ford Focus ECOnetic 49 reduce carbon emissions 49 hybrids plug ins 49 Propane autogas 49 HFC #a 49 greenhouse gas emissions 49 cleanest internal combustion 49 CO2 emitter 49 GHG emission 49 biofueled 49 decarbonising 49 ozone depleting refrigerant 49 air pollutants emitted 49 CO2 emissions #g/km 49 CO ² 49 dirtiest fossil 49 fossil fuels 49 cleanest diesel 49 carbon emitter 49 Volkswagen Polo BlueMotion 49 SUVs MPVs 48 ECOnetic 48 Peugeot iOn 48 Golf Bluemotion 48 diesel 48 LPG CNG 48 CO2/km 48 superminis 48 cleanest burning 48 emit CO2 48 DRIVe 48 biomass combustion 48 cleaner fuels 48 Fiesta ECOnetic 48 CO2 emission reduction 48 zero emission 48 carbon emmissions 48 Tailpipe emissions 48 exhaust emissions 48 Co2 emission 48 greenhouse gas emitters 48 smog forming pollutants 48 GHG emitters 48 CO2 emitted 48 ghg emissions 48 carbondioxide emissions 48 EVs 48 emitting greenhouse gases 48 Flexible Fuel Vehicles 48 GHG emitting 47 NGVs 47 sub-#g/km 47 Volvo S# DRIVe 47 GhG emissions 47 R#a 47 #g/km CO2 emissions 47 feebates 47 conventional internal combustion 47 renewables 47 GHG greenhouse gas 47 nitrogen oxides NOx emissions 47 CO ₂ 47 renewably generated 47 Carbon Dioxide CO2 emissions 47 pollutive 47 sub-#g/km CO2 47 GHG abatement 47 fuel efficent 47 PZEVs 47 SULEV 47 safest cleanest 47 Econetic 47 g CO2/km 47 CO2 Emissions 47 Mitsubishi iMiEV 47 greenhouse emissions 47 polluting fossil fuels 47 coalfired 47 NExBTL 47 biofuel blends 47 decarbonizing 47 carbon 47 nitrogen oxide NOx emissions 47 nickel hydride batteries 47 particulate emissions 46 greenhouse gases GHG 46 greenhouse gas emission 46 S# DRIVe 46 BEVs 46 alternatively fueled 46 CO ₂ emissions 46 petrol guzzling 46 reducing carbon emissions 46 greenhouse emission 46 emitting 46 sulfur diesel fuel 46 ULEV II 46 cleanest fossil 46 #g/km CO2 [001] 46 greenhouse gasses 46 tailpipe emissions 46 MPGs 46 diesel powered 46 LEVs 46 electric drivetrains 46 Indica EV 46 REVAi 46 smog forming pollution 46 reducing CO2 emissions 46 LCOE 46 Ford Fiesta Econetic 46 NOx nitrogen oxides 46 stringent emission 46 #.#D DRIVe 46 zero tailpipe emission 46 VW Polo BlueMotion 46 exhaust emission 46 Bluetec diesel 46 #g/km [001] 46 Tinskey 46 gas guzzling 46 hydrogen combustion engine 46 Auris hybrid 46 gas sipper 46 petrodiesel 46 Mercedes Benz Citaro 46 IGCC plants 46 dirtier fuels 46 Volvo DRIVe 46 EfW 46 smog forming emissions 46 environmentally damaging 46 baseload renewable 46 internal combustion engined 46 Greenhouse Gas GHG emissions 46 emits #g 46 diesel engined 46 reduce NOx emissions 46 biosequestration 46 GHG emissions 46 Speed limiters 46 greenhouse gas GHG emission 45 environmentaly friendly 45 guzzling appliances 45 CO2e emissions 45 Renewable energies 45 FFVs 45 gas guzzling cars 45 guzzler 45 smart fortwo electric 45 hybrid drivetrains 45 sulfur diesel 45 NOx emissions 45 emission reduction 45 greenhouse gases 45 DRIVe models 45 biodiesels 45 Atmosfair 45 EGR engines 45 nitrogen oxide burners 45 biodiesel fuels 45 diesel engined cars 45 smog forming 45 hybrid powertrains 45 conventionally powered 45 ML# Bluetec 45 heat trapping gases emitted 45 BlueTEC diesel 45 noncarbon 45 switchable battery 45 decarbonised 45 kW/# hp [002] 45 Reva NXR 45 renewably 45 particulate matter emitted 45 emis sions 45 HFC refrigerants 45 tailpipe emission 45 biogases 45 compact hatchbacks 45 coalfired power 45 excise duty VED 45 Ecomotive 45 nitrous oxide NOx emissions 45 Mitsubishi i MiEV 45 Ford Econetic 45 luxury saloons 45 environmentally friendly 45 Bluetec diesel engine 45 E# gasohol 45 vehicles EVs 45 hydrofluorocarbon HFC 45 liter diesels 45 emitters 45 switchable batteries 45 diesels 45 SEAT Ibiza Ecomotive 45 greenhouse gas 45 WtE 45 diesel particulate emissions 45 coal fired 45 microgeneration technologies 45 decarbonise 45 cleanest greenest 45 #.#g/km 45 ecoFLEX models 45 NOX emissions 45 urban runabout 45 multifuel 45 diesel powertrains 44 bioethanol E# 44 Carbon dioxide CO2 44 internal combustion 44 HDi diesel engine 44 hybrids diesels 44 gas guzzling vehicles 44 nonrenewable sources 44 de carbonisation 44 naturally aspirated engines 44 Hybrid HDi 44 SUVs pickups 44 DPFs 44 renewable 44 fuel guzzling SUVs 44 greenhouse gas GHG emissions 44 carbon dioxide CO ² 44 diesel engines 44 BYD e6 44 BlueEFFICIENCY 44 cleaner quieter 44 downsized turbocharged 44 PHEVs 44 autogas 44 city/# highway mpg 44 litres/# kilometers 44 greenhouse polluter 44 tailpipe pollutants 44 quadricycles 44 sub #g/km CO2 44 BlueMotion models 44 internal combustion engine 44 harmful tailpipe emissions 44 FlexiFuel 44 gas guzzling SUV 44 BlueTEC 44 nitrogen oxides carbon monoxide 44 FlexFuel 44 Mondeo ECOnetic 44 CFBs 44 Particulate Matter PM 44 bio diesels 44 polluter 44 Jim Crouse Capstone 44 smart fortwo cdi 44 Global Warming Potential GWP 44 biofuel 44 Internal combustion engines 44 nonpolluting 44 cng 44 polluting industries 44 gasifying coal 44 Indica Vista EV 44 fuel sipper 44 biofuels 44 #.#dCi 44 HDi diesel 44 BlueTec diesel technology 44 SO2 emissions 44 SUVs crossovers 44 Emissions 44 engine displacements 44 #.#HDi 44 TDI diesels 44 Euro5 44 turbo diesel engines 43 Lexus RX#h 43 alternative fuels 43 ML# BlueTEC 43 renewable energies 43 greenhouse gas emmissions 43 emit greenhouse gasses 43 combustion engined 43 petrol guzzlers 43 Clio Campus 43 electricy 43 NOx nitrogen oxide 43 M#h 43 tailpipe exhaust 43 co2 43 gas guzzler 43 Dacia Sandero 43 NExBTL renewable diesel 43 carbon dioxide CO2 43 global warming gases emitted 43 electric hybrid powertrain 43 Mercedes E# CDI 43 liter dCi diesel 43 Deron Lovaas 43 nitrogen oxide emission 43 kilo watt hour 43 user chooser 43 de carbonizing 43 cleaner greener 43 emit GHGs 43 hydrofluorocarbons HFCs 43 CO2 emission reductions 43 Auris HSD 43 Sugarcane ethanol 43 Smart Fortwo 43 BLUETEC 43 SUVs minivans 43 Focus ECOnetic 43 HDi diesel engines 43 Nitrogen Oxide NOx 43 emits #g/km [002] 43 BMW #d EfficientDynamics Saloon 43 environmentally considerate 43 gas guzzling SUVs 43 environmentally unfriendly 43 carbon emission reductions 43 Ethanol blended 43 nitrous oxide NOx 43 liter TDI engine 43 Prius PHV 43 nonpolluting renewable 43 BlueMotion 43 emit carbon dioxide 43 PARALEX 43 fossile fuels 43 gas milage 43 enegy 43 renewable energy 43 greenhouse emitters 43 #.# liter TDI 43 cow enteric 43 BlueTec Hybrid 43 Mercedes Benz E# CDI 43 legally binding pact obligating 43 Carbon dioxide emitted 43 Flexible Fuel Vehicle 43 #/#-mpg rating 43 ozone depleting compounds 43 Mondeos 43 Greenhouse gasses 43 Golf BlueMotion 43 IGCC 43 e HDi 43 combustion engine 43 Peugeot BB1 43 bio fuels 43 HFO #yf 43 manual gearboxes 43 TDCi diesel 43 Roadster accelerates faster 43 Carbon dioxide CO2 emissions 43 CNG compressed natural 43 particulate matter emissions 43 #kWh [002] 43 Civic GX 43 Tata Indica Vista 43 lpg 43 C# CDI 43 pollutants emitted 43 leaded petrol 42 Toyota Auris Hybrid 42 lignite coals 42 Volkswagen TDI 42 Bt#.# liter 42 Vehicle Excise Duty 42 feebate 42 diesel powerplants 42 litres/#km #mpg 42 Co2 42 zero tailpipe emissions 42 ZEVs 42 gas guzzling #x#s 42 carbon dioxide 42 E# flex 42 V6 diesel 42 GHG emission reduction 42 nonroad 42 flexfuel vehicles 42 GoinGreen 42 sulfur dioxide SO2 nitrogen 42 Autolib 42 Zero Emission Vehicle ZEV 42 Powernext Carbon 42 petrols 42 propane Autogas 42 pollutant emission 42 fuelefficient 42 emit greenhouse gases 42 soot pollution 42 diesel particulate filters DPFs 42 Renault Fluence ZE 42 NASDAQ WPRT global 42 4Matic 42 diesel gensets 42 LEED BREEAM 42 Compact Fluorescent Lamps CFLs 42 Subaru R1e 42 Saab BioPower 42 CAFÉ standards 42 cleaner burning 42 mpg city/# mpg highway/# 42 Incandescent lamps 42 levelized cost 42 city/# hwy 42 door bodystyle 42 SCR catalytic converter 42 ULEV 42 gaseous emissions 42 R# BlueTEC 42 propane autogas 42 sulfur dioxide pollutant 42 #.# liter #bhp 42 Opel Zafira 42 fuel guzzling 42 levelised cost 42 ICEs 42 C# DRIVe 42 V6 engines 42 iMiEV 42 decarbonisation 42 nitrous oxide emissions 42 Airdream + 42 House Gases GHGs 42 Greenest Vehicles 42 emitting carbon dioxide 42 EcoBoost petrol 42 wholelife costs 42 woodburning stoves 42 ethanol/# 42 Riversimple 42 guzzling SUVs 42 carbon dioxide emitter 42 Biomass gasification 42 Auris Hybrid 42 Mariner Hybrids 42 turbodiesel engines 42 gassification 42 smart cdi 42 nonfossil fuel 42 R#A refrigerant 42 #MPG [002] 42 Kyoto Protocol obliges 42 Dialog Semiconductor creates 42 Focus Econetic 42 inefficient boilers 42 Pertamax Plus 42 urea injection 42 bioethanol 42 allowances EUAs 42 TopTen USA 42 ML# BlueTec 42 emission reductions 42 #Kw [001] 42 electrics hybrids 42 carbon emitted 42 tonnes CO2e 42 e tron concept 42 London Congestion Charge 42 Refrigerants Naturally 42 sulfur distillate 42 SportWagen 42 reciprocating engine 42 Tribute HEV 42 Touareg TDI 42 #bhp #bhp [002] 42 #.#mpg #.#mpg 42 exhaust aftertreatment systems 42 CCGT 42 nitrogen oxide emissions 42 Vehicles FFVs 42 SmartWay certified 42 turbodiesel engine 42 SCR Selective Catalytic Reduction 42 Emission Vehicle SULEV 42 Bioethanol 42 supercritical coal 41 Fluence ZE 41 ltr/# km equal 41 particulate filters 41 CDI BlueEFFICIENCY 41 i Miev 41 #.#L/# km highway 41 Capstone microturbines 41 anthropogenic greenhouse gases 41 GE WattStation 41 decarbonize 41 i0n 41 sulfur dioxide SO2 41 Volkswagen BlueMotion 41 geothermal hydro 41 gas guzzlers 41 heaviest polluters 41 #.#km l 41 finite fossil fuels 41 greenhouse gas emitter 41 E# bioethanol 41 DDiS 41 CODA Sedan 41 turbodiesels 41 baseload electricity 41 Bluemotion 41 polution 41 incandescent lightbulbs 41 electrically powered 41 Porsche Cayenne Hybrid 41 highway/# 41 Citaro 41 rank coals 41 biomass biogas 41 HCCI engine 41 greenhouse gases emitted 41 unladen weight 41 CNG Compressed Natural Gas 41 heat trapping pollutants 41 Trucks outsell 41 Super Ultra Low 41 gearshift indicator 41 Optima Hybrid 41 Most Fuel Efficient 41 li ion batteries 41 Concentrating solar 41 Nissan Pixo 41 V 6s 41 EPEAT Gold rated 41 bovine flatulence 41 carsharing 41 Loremo 41 #hp #kW [001] 41 carbon polluter 41 Remy HVH electric 41 vans minibuses 41 GHG reductions 41 bio ethanol 41 renewable feedstocks 41 Primastar 41 Toyota Prius Honda Civic 41 RenDiesel ® 41 NExBTL Renewable Diesel 41 greenhouses gases 41 hydraulic hybrid 41 inefficient lightbulbs 41 FCVs 41 Carbon Emission 41 Silverado Hybrid 41 CarbonSMART ™ enterprise 41 T6 AWD 41 petrol powerplant 41 tonnes gvw 41 kilowatt microturbine 41 biodiesel blends 41 SOx emissions 41 SKYACTIV G 41 E# Bluetec 41 FCHV adv 41 bonus malus 41 vehicles NGVs 41 Acabion 41 Bharat Stage 41 Optare Solo 41 #.#L FSI 41 sulfur sub bituminous 41 #Ld 41 octane unleaded 41 #.# liter V8s 41 X5 xDrive#d 41 dioxide emissions 41 liter CDTI 41 nongreen 41 i MiEV electric 41 Bio DME 41 Electric Vehicles EVs 41 Meri Pori 41 BMW ActiveHybrid X6 41 liter #bhp diesel 41 Coal gasification 41 nitrogen oxide 41 condensing boilers 41 Ultra Low Emissions 41 VRB ESS 41 emissions combustor 41 liquefied hydrogen 41 petrol powerplants 41 Flexible Fuel 41 MOVIA 41 gasohol 41 dCi diesel 41 particulate emission 41 carbon footprints 41 megatonne 41 E# biofuel 41 carbon footprint 41 Steve Prucnell builds 41 electric drivetrain 41 Vision Efficient Dynamics 41 #.#/kWh [001] 41 Parabolic trough 41 greenest cleanest 41 petrol V6 41 nitrogen oxides NOx 41 Renault Twizy 41 Escape Hybrid SUV 41 Fischer Tropsch fuels 41 Duratorq TDCi 41 bio diesel 41 GHG reduction 41 propane furnaces 41 Ford F# Motorhome 41 X5 #.#si 41 trigeneration 41 HyProStar 41 ozone depleting 41 CO2 eq 41 Miles Per Gallon 41 Pharox bulb 41 smokestack pollutants 41 Toyota Prius 41 Buick LaCrosse Eco 41 BMW Efficient Dynamics 41 Mercedes Benz E# Bluetec 41 DPFS 41 Renault Koleos 41 Kyoto signatories 41 nitrogen oxides sulfur oxides 41 #yf 41 carbon dioxides 41 NiMH nickel 41 washing machines tumble dryers 41 pyrolysis oils 41 hybrid electric 41 V6s 40 Citaro Hybrid 40 Polluting 40 Emission Trading Scheme 40 #MPG [001] 40 Incandescent bulbs 40 NOx 40 GE Jenbacher engines 40 TwinAir 40 mpgs 40 HEVs 40 #/kW 40 efficient powertrains 40 pollutant 40 petrol engined cars 40 Duratorq diesel engine 40 liter V6 diesel 40 DiesOtto 40 carbon dioxide emission reductions 40 RenDiesel fuel 40 scrappage allowance 40 Euro4 40 Volvo ReCharge Concept 40 Tourneo Connect 40 AT PZEV 40 #.#litre diesel 40 Emission Reduction Units 40 Franziska Achterberg 40 hybrid powertrain 40 RON# [001] 40 sulfur dioxide SOx 40 nonrenewable fossil fuels 40 polluters 40 C# BEV 40 MPGe 40 sipping hybrids 40 PEVs 40 RMI Petrol 40 Ecotec #.#L turbo 40 hybrids electrics 40 renewably powered 40 efficient cookstoves 40 BlueTec diesel 40 4 × 4s 40 Ozone depleting substances 40 V6 TDI 40 R #A refrigerant 40 Ultra Low Emission Vehicle 40 CO -2 40 supermini 40 greenhouse gas GHG 40 V# DRIVe 40 inefficient incandescent bulbs 40 gasified coal 40 #ppm CO2 40 particulate matter sulfur dioxide 40 CVT transmissions 40 nitrogen oxide pollution 40 diesel particulates 40 argentinian debt crisis 40 deisel 40 greenhouse gas polluter 40 C# microturbines 40 normally aspirated engine 40 House Gases GHG 40 Mitsubishi i Miev 40 Audi A1 e tron 40 Infiniti M# Hybrid 40 CT#h 40 BlueTec 40 crystalline silicon panels 40 HCNG 40 octane petrol 40 emit pollutants 40 Renewable Obligation Certificates ROCs 40 B5 biodiesel 40 E# CDI 40 Econic 40 greenest 40 EcoDynamics 40 bio degradable plastic bags 40 Transit Connect BEV 40 CABLED 40 CO2 emission allowances 40 Compressed Natural Gas 40 Vauxhall Ampera 40 Citroën C1 40 pickups minivans 40 BlueEfficiency 40 emit sulfur dioxide 40 BlueEFFICIENCY models 40 ultralow sulfur 40 onshore wind turbines 40 #.#L/# km [002] 40 Duratorq TDCi diesel 40 Hatchbacks 40 coco biodiesel 40 trillion BTUs 40 Nitrogen oxide emissions 40 compact crossovers 40 nitrous oxides 40 Toyota iQ 40 L/# km highway 40 NExBTL diesel 40 BMW ActiveHybrid 40 narcissism Twenge 40 ethanol bio diesel 40 Focus FCV 40 Honda Civic Hybrids 40 pure electrics 40 pollutions 40 R#a refrigerant 40 driest continents 40 peaker plants 40 Maruti Suzuki Alto 40 Greenhouse gases 40 ecotowns 40 compressed natural 40 manmade greenhouse gas 40 Particulate emissions 40 carbon dioxide emitted 40 aftertreatment systems 40 EVSE 40 renewable fuels 40 RX#h 40 liter TDV8 40 turbocharged petrol 40 Toyota Motor Co.p. 40 compact fluorescents CFLs 40 EU6 40 #MWh 40 commissioner Stavros Dimas 40 environ mentally 40 Kangoo Express 40 hybrids PHEVs 40 carbon dioxide CO2 emitted 40 X6 ActiveHybrid 40 BioEthanol 40 octanes 40 potent greenhouse gas 40 Autogas 40 agro fuels 40 Smart fortwo 40 Citroen Nemo 40 elec tricity 40 Fuso Canter Eco 40 biodeisel 40 twin turbo diesel 40 drayage trucks 40 Escalade Hybrid 40 GHG emitter 40 mhd 40 Gas guzzling 40 fluidized bed gasification 40 Nissan Altima Hybrid 40 reciprocating engines 40 Anders Eldrup CEO 40 Dynamique trim 40 global warming gasses 40 hydrofluorocarbon 40 nitrogen oxide NOX 40 cleanest safest 40 subcompact Fiesta 40 Nissan Leaf EV 40 Changchun Shenzhen 40 #.#L diesel 40 GHG emitted 40 #v MultiJet 40 Chevrolet Volt Nissan Leaf 40 consultancy Ecofys 40 EcoDrive 40 Emissions Vehicle SULEV 40 baseload 40 rapidly industrializing nations 40 environmental friendliness 40 fission reactors 40 biomethane 40 BlueCool Truck 40 diesel particulate filter DPF 40 Provoq 40 Opel Vauxhall Ampera 40 MultiJet II 40 dimethyl ether DME 40 diesel aftertreatment 40 Butanol 40 coal 40 E# Cabriolet 40 #.#TDI 40 HumanCar 40 BtL 40 nitrogen oxide NOx 40 electrolysers 40 Sonata #.#T 40 Chevrolet Tahoe GMC Yukon 40 Remy HVH 40 harmful gases emitted 40 Hybrid4 40 Fossil fuels 40 BLUETEC diesel 40 Cement kilns 40 CCGTs 40 #PS [001] 40 sulfur dioxide pollution 40 #g/km [002] 40 Zap Xebra 40 Hythane R 40 volt chargers 40 #.# mpg imp 39 #.# liter Duratorq 39 #.# liter #PS 39 Mitsubishi iMiev 39 heat trapping carbon emissions 39 photo voltaic solar 39 #kWh lithium ion battery 39 mini MPV 39 biggest polluter 39 Concept ActiveE 39 Tata Prima 39 hydrochlorofluorocarbon 39 cow farts 39 Capstone MicroTurbine 39 greehouse gas 39 cleanest quietest 39 Haugwitz 39 electrolyzers 39 liter turbodiesel engine 39 EITE industries 39 environmentally benign 39 smoggiest cities 39 BMWs Audis 39 subcritical 39 Gasoline Direct Injection 39 Sulfur dioxide pollution 39 sulfur dioxides 39 Dodge Durango Hybrid 39 harmful gasses 39 global warming gases 39 Fuel Efficient 39 litres/# km 39 #c/kWh 39 #.#L/# km [001] 39 Malibu Hybrid 39 smoggiest regions 39 LEZ 39 baseload generating 39 Fuel Obligation 39 Lexus RX #h 39 smog forming nitrogen oxides 39 A4 TDI 39 Saturn Aura Hybrid 39 Ecoboost engine 39 railbelt 39 Bio SNG 39 Mercedes Benz BlueTEC 39 Ford ECOnetic 39 V6 turbodiesel 39 ZENN 39 greenhouse gasses emitted 39 Ann Mesnikoff director 39 S# D5 39 #kW/#Nm [002] 39 kWhr 39 Extended Range Electric 39 #mpg [001] 39 #.#mpg [001] 39 Obvio 39 PHEV 39 biomass 39 CAFE standards 39 pellet boilers 39 xDrive#d 39 Liquified natural 39 CNG variant 39 torque outputs 39 hybrid drivetrain 39 gasifying 39 leaded fuels 39 Emission Vehicle 39 endorses halving 39 LCVs 39 EV recharging 39 Volkswagen Jetta sedan 39 hatchbacks 39 comparably equipped 39 C#K 39 turbocharged engines 39 patented Airtrax wheel 39 Dual Fuel 39 Nissan Altima Honda Accord 39 GHG emission reductions 39 powered lawn mowers 39 fuels 39 prius 39 Biomethane 39 ML# HYBRID 39 onshore windfarms 39 #.#l V6 39 Capstone microturbine 39 Congestion charging 39 gaseous fuels 39 glorified golf carts 39 cellulose ethanol 39 mpg 39 #LL [001] 39 luxo barge 39 Low Carbon Vehicle 39 hydrofluorocarbons HFCs perfluorocarbons PFCs 39 BioPower 39 gulpers 39 gas guzzling behemoths 39 greenhouse gas emission reductions 39 iOn 39 unburned hydrocarbons 39 Coda sedan 39 liters/# km