Ford, BMW and others sign binding emissions agreement with CaliforniaThey've committed to building cars that outperform federal fuel efficiency standards.By K. Holt, 08.18.2020
EPA weakens annual fuel economy standard increase to 1.5 percentThe EDF suggests the rollback will make Americans more vulnerable to respiratory diseases. By I. Bonifacic, 03.31.2020
22 states join California to sue the Trump admin over emissions standardsThe Trump administration plans to set a national fuel economy standard.By K. Holt, 09.20.2019
EPA pushes national fuel economy standard in face off with CaliforniaStates would no longer be able to set their own, stricter standards.By C. Fisher, 09.19.2019
DOJ launches probe of automakers that agreed to California emissions rulesIn a separate letter, the EPA warned California it should back out of the deal.By I. Bonifacic, 09.06.2019
Ford, Honda and others agree to California's voluntary emission rulesIt's less than the Obama-era goals, but it's still something. By D. Cooper, 07.26.2019
US issues final rules halting increase of fuel efficiency penaltiesAutomakers will have one less incentive to improve fuel economy.By J. Fingas, 07.13.2019
EPA could lock in emissions rules before Trump takes officeThe agency says automakers will be able to meet proposed fuel efficiency goals by 2025. By B. Steele, 11.30.2016
Ford C-MAX Hybrid rated for 47MPG across the board, C-MAX Energi hits 85MPH in EV modeBy J. Fingas, 08.09.2012
Inhabitat's Week in Green: worlds largest LEGO Christmas tree, turbine powered LEDs and a hydrogen fuel cell vehicleBy Inhabitat, 12.05.2011
Inhabitat's Week in Green: holiday gift guide, 155 MPH biofuel truck and a solar-powered buckyballBy Inhabitat, 11.27.2011
Goodyear's self-inflating tires could improve gas mileage, leave Schrader valves unsatisfiedBy L. Leavitt, 08.13.2011
UK students' 1,980 MPG car scores first place in marathon race, by a 1,000 MPG marginBy D. Melanson, 06.24.2011
Tesla Roadster 2.5 gets 119 MPGe rating from EPA, still as expensive as ever (updated)By A. Toor, 05.26.2011
GM shows off Terrain SUV with noise cancellation, says silence equals fuel efficiencyBy C. Trout, 02.25.2011
Volkswagen's XL1 concept plug-in diesel hybrid has 260MPG fuel efficiency, questionable aestheticsBy V. Savov, 01.25.2011