Using rail means accepting slightly higher inventories, he says, but it is often worth it.Moving goods by rail is four times more fuel efficient than by road, and railways can increase their capacity in the future.
Simply making conventional vehicles more fuel efficient cannot by itself bring the target within reach, the report, which was released on Monday, says.
The effect will be a single new national standard that will create a car and light truck fleet in the United States that is almost 40percentt cleaner and more fuel-efficient by 2016 than it is today, with an average of 35.5 miles per gallon.
Since then, the growth in demand has been subdued by more fuel efficient cars, and by a shift to diesel.
That's because consumers will primarily respond to a fuel tax over the long run by purchasing more fuel efficient vehicles, not by driving less.
As many of us who can, let's pledge to buy a new, fuel efficient car made by the UAW.
The highest ratings are earned by cars that are the most fuel efficient, particularly those made by Honda.
The aviation industry is seeking to reduce its climate change impacts by becoming more fuel efficient, and in the last 40 years fuel efficiency has more than doubled.
The premium carmakers have also been pushing more aggressively into lower-priced segments, offering vehicles like the BMW 1 Series and Mercedes B-Class that are small and fuel efficient but are perceived by buyers to have more cachet than a Renault or Fiat.
As part of this campaign, Hudema interrupted General Motors CEO Richard Wagoner at the keynote address of a Los Angeles automotive show and asked him to sign a commitment to make General Motors vehicles the most fuel efficient in the world by 2010 (Wagoner refused to sign, saying that his "speech spoke for itself").
