InvestigateWest reports that o decarbonize the Cascadia region, the area will need an even stronger clean-fuels push. Recent researchfinds that switching to battery-powered vehicles is the cheapest long-term solution to eliminate use of fossil fuels by 2050. Electrification can do it all for cars, energy planners say, edging out most conventional car sales within a decade. However, electrification of fuel-thirsty heavy vehicles could take decades longer, and Washington, Oregon and British Columbia need to significantly trim carbon emissions by 2030.