"Auto companies should become the manufacturing base for public transportation. They already know how to manufacture and have the facilities and engineering." — Brian

"Since money is the language most people speak, we should tax on cars according to EPA mileage. The tax should be steeply proportional to the inefficiency of the vehicle." — Feimo

"Start a 'fee-bate' system, the lower the gas mileage the more of a fee is paid at time of purchase, the better the gas mileage the more of a rebate you get. For example automobiles that get less then ten miles per gallon could have a fee of $10,000 and cars that get better then 60 miles per gallon could get a rebate of $10,000." — Jeremy

"I would like to see Detroit or Tokyo develop a new drivetrain that provides you two modes of operation. In 'travel' mode, the drivetrain would provide you with reasonable fuel economy with acceptable acceleration and performance. In 'work' mode, the drivetrain provides you with horsepower and torque, sacrificing economy." — Bob

"If we want to save fuel, how about we encourage companies to let employees work from home?" — Jonathan

"Biodiesel. It's a cleaner, home-grown alternative to petroleum diesel. There are even backyard chemists making biodiesel themselves, and collecting their oil from restaurant deep-fryers all over the country." — Marguerite

"Do away with the tax credit for buying the 6000-lb. hulking SUV so some idiot can go to the grocery store under the guise of 'business.'" — Tim

"One of the problems of raising so many cattle is the methane they produce. Methane is a fuel. Why not collect it and use it to produce electricity?" — Lori

"How's this for a solution: Institute a system like London's which charges suburbanites a tax for driving into the city. That way, those of us who actually live and work in town can stop subsidizing those who choose to waste natural resources by driving 30 miles." — Curt

"I've heard a few people talk about ethanol as a viable solution. It harnesses the most powerful thing in the solar system, namely the sun, as the primary power source. Here's how it works: Solar Power + Photosynthesis + Out of Work Farmers = Ethanol." — Brent

"How about finding alternative commuting routes that avoid the stop-and-go, creepy-crawly rush hour on the expressways?" — Jack

"With respect to solutions to our current gasoline consumption profligacy, I use a well known technology that yields 50+ mpg, 0-60 in under 4 seconds, 115 mph top speed, 420 lbs. vehicle weight, 4 fit in a single car parking spot, and a $4200 new purchase price. It's called a motorcycle." — VLJ

"Forget hydrogen (for now). We need PHEVs: plug-in hybrid vehicles. 90% of American car trips are 20 miles or less. With PHEVs, we could run most of our personal transportation on grid electricity." — Nicholas

"Live according to your own values. If this is important to you, then drive, buy, and make decisions accordingly. Talk to your friends to convince them to do the same. The market, the government, and society in general will respond to real shifts in attitude in a real and lasting fashion." — Phil

"This trend of installing a traffic light every 50 feet has got to stop. In fact I think that all or most existing traffic lights should be eliminated." — Mark

"I would suggest an efficiency meter be placed right up there beside the speedometer on the dashboard. We don't expect people to measure their speed using the odometer and a wristwatch, so why are so many people stuck measuring miles-per-gallon with the odometer and a gas pump?" — Marc

"The development of clean nuclear fission (hydrogen) is the way to go to end our dependency on oil, foreign or domestic. Just because the EPA banned the establishment of new nuclear plants in the '70s doesn't mean we should give up on this energy source." — John

"How about if new vehicle buyers are required to pay for their EPA-estimated first year of gas up front and in cash when they buy the car? That should send a shock to people who aren't paying attention to the MPG ratings." — Sahm

"Make our cities and towns more bicycle and pedestrian friendly. Instead of building out, build up." — David

"The simplest way to do this is to tax fuel the way the Europeans do. Our fuel taxes pay only a fraction of what is really required to make and maintain a highway. Let those who use them pay for them." — Dennis

"How about using your cruise control more often? Seems to keep me from feeling the need to hit the gas pedal for no reason... not to mention that I have not gotten a speeding ticket since I started this a few years back." — Ernie

"Think big, buy small. If you need a big vehicle once or twice a year for travel, rent one, don't buy one." — Margaret

"Have our numbskull congress plug the CAFE standard loophole for SUVs. They're not trucks! And, if they really are trucks, then ban them from parkways that don't allow trucks!" — Dave

"NO SALES TAX on the three most fuel efficient cars in each state." — Curt Wright

"My wife and I just got back from Ireland, where the cost of plates and car registration are linked to the horsepower of the car you drive. Just think about it: people would have to pay extra for plates and registration for their Hummer at 300 hp vs. my Ford Focus at 130 hp." — Reed

"Why not have a spokesman, a NASCAR driver, for instance, do a commercial advocating proper tire pressure and driving 55 MPH?" — Robert

"Make it harder to obtain a driver's license. Raise the minimum age to 18, and institute a maximum age or series of tests that must be passed 100% for the elderly to drive." — James

"Move cargo to trains — one train crew per 100 train cars, each carrying the equivalent of two semis. Not only does this save fuel, it saves loads of wear and tear on roads and makes driving much easier." — John

"A different concept of the motorcycle could help. Imagine a vehicle that only takes up a fraction of the space of a car, and could thus reduce traffic congestion, enabling countless thousands of vehicles to actually move instead of idling in gridlock." — Richard

"I would suggest getting governments to give incentives to local businesses to build facilities to encourage more bicyclists, joggers, and runners to get to work under their own power." — Cindy

"Make more of the DC-Virginia expressway model — cars that run on alternative fuels are allowed to use the HOV lane no matter how many people are in the car. Commuters have been buying them like crazy outside the Beltway!" — Katherine

"How about changing the EPA testing to reflect the way people really drive? That might encourage manufacturers to tweak vehicles to be as fuel efficient as possible under real conditions instead of some pretend 55 MPH speed that nobody ever really followed, anyway." — Dennis

"How about a sliding scale for gas prices depending on the type of vehicle you drive? Just think about it: The over-hyped SUV/pickup truck markets would tank (no pun intended) overnight if an SUV or pickup truck owner had to pay twice as much per gallon as someone (yes, like me!) who owns a vehicle that gets 32-34 MPG (highway)." — Karen