alternative fuels


Map of the United States showing the fuel efficiency that a diesel bus would need to have the same life cycle global warming emissions as a battery electric bus in each region.

Electric vs. Diesel vs. Natural Gas: Which Bus is Best for the Climate?

, senior vehicles analyst

Battery electric buses – the people’s electric vehicle – are becoming more and more common. An increasing number of transit agencies – large and small – are making announcements about purchasing electric buses and putting them into operation.

The obvious benefit of electric buses is that they don’t have any tailpipe emissions. A question we often get at UCS is, “What about emissions used to generate electricity for electric vehicles?”

We answered this for buses charged on California’s grid and found that battery electric buses had 70 percent lower global warming emissions than a diesel or natural gas bus (it’s gotten even better since that analysis). So what about the rest of the country?

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Photo credit: MJW15 CC BY-SA 4.0
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How Oregon Can Fill Up On Clean Fuels

, Senior policy and legal analyst

Something big is brewing in Oregon. No, it’s not a new IPA from Portland-based Bridgeport Brewery—though that sounds delightful. It’s the next phase of Oregon’s Clean Fuel Program, a forward-thinking regulation that requires transportation fuel to get steadily cleaner on average, ultimately achieving a 10 percent reduction in carbon emissions per unit of fuel in 10 years. Extending this rule is a big deal because approximately one-third of Oregon’s greenhouse gases come from transportation, and Oregon has the in-state resource potential to produce significant amounts of clean fuels. Read more >

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