Nationally, some environmental groups think that targeting carbon emissions from vehicle fuel is one of the least effective and costliest ways to fight global warming.
Ian K. Kullgren | The Oregonian/OregonLive, Portland Oregonian: Local
Sat, 02/28/2015 - 7:03am
Nationally, some environmental groups think that targeting carbon emissions from vehicle fuel is one of the least effective and costliest ways to fight global warming.