Transportation Resources

All transportation resources

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Drawing of UCS Vanguard, a high-fuel-efficiency minivan design

UCS Vanguard

The UCS Vanguard, updated from the original 2007 design, details vehicle technology features that can save consumers money while reducing global warming emissions.
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Map showing best and worst airports for flight delays

Getting There Greener

The Union of Concerned Scientists presents the first comprehensive analysis—peer-reviewed by experts—of the highest-carbon and lowest-carbon options for vacation travel.
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Truck crossing Golden Gate bridge

Delivering the Green

Improving truck efficiency is not only good for the bottom line but also can help California meet its global warming, air quality, and petroleum dependence goals.
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Bales of biofuel crops in farm field

Land Use Changes and Biofuels

Analysis to consider the impacts that the use of agricultural, forest, rain forest, and other lands for the development of bio-based transportation fuels may have on their lifecycle global warming carbon dioxide footprint.
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The Role of Food Crops as Transportation Fuel

Concerns about the use of food crops to make biofuels have been growing due to a sharp increase in both food and fuel prices, along with studies suggesting that production of these fuels may increase global warming pollution.
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Tractor-trailer

Technology Options for Tractor-Trailers

Fact sheet describing some of the technologies available today that can be installed on trucks, or specified as options on new trucks, to improve fuel efficiency through better aerodynamics and reduced rolling resistance.
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Jobs, Energy, and Fuel Economy

We estimated the effect of moving existing technologies into cars and trucks with the modest goal of reaching a fleetwide average of 35 miles per gallon (mpg) by 2018.