Related by context. Frequent words. (Click for all words.) 52 Roland Hwang 46 Concerned Scientists UCS 45 Daniel Sperling 45 recounts kidnapping 45 Concerned Scientists 44 Philip Kamrass Times 44 Paul Buckowski Times 44 Edwin Lyman 44 David Lochbaum 42 conventional internal combustion 42 alternative fuels 42 Paul Anastas 42 SUVs pickups 41 CALSTART 41 Barry Steinhardt 41 mpg city/# highway 41 V2G 41 Joel Makower 41 electric drivetrain 41 PZEV 40 Uchiyamada 40 tailpipe emissions 40 diesel powered 40 diesel 40 Dennis DesRosiers 40 #mpg [001] 40 electric hybrids 40 MyFord Touch 40 exhaust emissions 39 hybrid electric 39 EfficientDynamics 39 Skip Dickstein Times 39 aerodynamic drag 39 hybrid propulsion 39 hybrids 38 MPGe 38 hybrid 38 cylinder deactivation 38 Saturn VUE 38 Chevy Volt 38 Jason Grumet 38 CVTs 38 hypermiling 38 e tron 38 CTS sedan 38 analyst Aaron Bragman 38 hybrid powertrains 38 Silverado pickup 38 proton exchange 38 hydrogen powered 38 hybrid powertrain 38 exhaust emission 38 diesels 38 Mode Hybrid 38 mpg 38 mpg city/# mpg 38 Amory Lovins 37 hydrogen fuel 37 George Magliano 37 Escape hybrid 37 carlike 37 mileage 37 renewable fuels 37 Ford EcoBoost 37 FreedomCAR 37 Escape Hybrid 37 cleanest diesel 37 Volt 37 www.fueleconomy.gov 37 cellulose ethanol 37 hybrid Prius 37 AFS Trinity 37 Sandalow 37 Frank Maisano 37 Frances Beinecke 37 David Doniger 37 PHEV 37 ZEV 37 L/# km 37 diesel engines 37 kpl 37 Sunita Narain 37 Cruze Eco 37 evaporative emissions 36 efficient powertrains 36 Jeff Tittel 36 drag coefficient 36 smog forming 36 Marc Gunther 36 Joan Claybrook 36 Joseph Romm 36 Renewable fuels 36 zero emission 36 city/# highway 36 Philip Clapp 36 l/#km 36 Ford Escape Hybrid 36 combustion engine 36 Toyota Prius hybrid 36 cleaner fuels 36 Fred Krupp