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If you don't need traffic lights, there's no reason to install them.

The way we change transport could change the way our cities look. It probably will, in fact.

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We'll All Be Far Worse Off Without Fossil Fuels, Campaign Insists

Oil and natural-gas lobbyists launch a social-media campaign challenging Americans to go without fossil fuels for a week. It all starts Monday.

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Anyone who's California Dreamin' about test-driving the battery-electric version of the Toyota RAV4 can now get their chance.

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Nobody likes to be labeled, unless they truly embody everything that a specific group stands for. For instance, many people who try and live their lives in an eco-friendly manner would not label themselves as "tree huggers", but for some, the label fits perfectly and they have no problem with it at all. Car guys, though, generally readily admit to their fascination with all things automotive. Perhaps it's because being a "car guy" doesn't often carry along a negative stigma. Regardless, an inter

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The erroneous contention that a Hummer is more efficient and earth-friendly than a Prius over the vehicles' lifetime has sailed across the net for months. The argument defies common sense, and has been debunked repeatedly. The "studies" were flawed by design, but they served the purpose of sowing confusion and doubt. The point by point rebuttal to this nonsense can be found here and here. To take just one point, it is presumed that a Hummer will drive more miles than a Prius, thus spreading out

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Are you somebody who is always tinkering with your car to get the best mileage possible? If so, you may just be a hypermiler, and should share you finding with the rest of us. In fact, why not share your tip with Popular Science, Instructables and Treehugger in their newest contest. Of course, we are most interested in how you green your car here at AutoblogGreen, but any green projects count for this contest. To see the official rules and all of that jazz, click here.

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Assuming that these scooters were made from trees which had already run their life course here on earth, and were not cut down simply to be turned into these beasts, these are certainly what we could consider green. After all, they emit no carbon emissions. In fact, the do not emit at all. Nor does one need to worry where the electricity comes from, as they require none. I know it sounds too good to be true, but as you can see from the pictures, it's true. Gravity power... the future is now!

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As part of a student competition, designers I. Kiryakov, S. Ballmeier, K. Eichelberg & M. Dressler have attached an exercise machine to a high-speed canoe hull, and called it the Tu-Fin. The vehicle transfers the movement of the stepping user to forward motion using a flipper, according to Treehugger. What benefit does this offer to the more standard rowing that would take place in a normal canoe or kayak? None really, unless you are in need of leg exercise as opposed to arm exercise. Whatev

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Where do the big diesel-powered semi trucks fall on your list of green automotive trends? Not real high? Mine either, to be honest. This is not to say that trucking in not important, or that I want it to stop, that is not the case. As a matter of fact, the American economy is largely dependent on the vehicles transportation of our goods. They are necessary, is what I'm trying to say. And, being that there are so many on the road, anything that can be done to help them reach higher mileage and lo

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While the vehicles themselves have probably already been seen by many of our readers, Treehugger.com, the online blog for people who find it easy to be green, has picked a few prototype cars that they would like to see make it into production this new year, or become accepted by the general public. While there are serious questions as to whether some of them actually will, here's to hope!

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They say we Americans love a good challenge, so in the face of global warming Slate collaborated with Treehugger to come up with the Slate Green Challenge. The idea is that you take a short quiz which determines your annual carbon footprint and then for the next eight weeks, the nation goes on a carbon diet with the end goal of reducing carbon emissions from individuals by 20 percent. The average for a U.S. citizen is 44,312 lbs.

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Treehugger recently wrote about this article in the New York Times spotlighting General Motors for switching to solar power for electricity in some of their buildings. The reason why the General's accountants are so happy is because they're saving money on their electric bill and there wasn't a single penny to pay for upfront costs.

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Here's something I didn't know about converting a diesel engine to run on straight vegetable oil: the U.S. Environmental Protection Agency says it is a violation of the Clean Air Act, so violators could be hit with a fine of $2750. Finding this out is why New York Times reporters get paid more than bloggers, I guess.

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As we know, it's awful hard to quantify just how green our lifestyles are. Pretty much everything we use, buy or eat has a history that can be chained further and further back, where the ecological impact gets harder and harder to measure. We can commute to work on a bike, for example, but how was the metal for the bike extracted from the earth? How was the bike transported from the factory to the shop? And so on. It might be only the greenest of the green who stay up nights worrying about this,

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Reaction to Ford Motor Company's lessened focus on hybrid technology and switch to ethanol has been strong. Treehugger, the websource for the environmentally-conscious buyer, points to the Alternative Fueled Vehicles Rule of 1998 and 2004 as one reason for Ford's change of heart.

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Green automobile technology and biofuels are worldwide news, but it’s true that AutoblogGreen is pretty focused on North America and Europe, but we love to post news about the goings on in other countries and areas (like Thailand, Zimbabwe, and Eastern Europe). That’s why this tidbit, about a hybrid delivery vehicle making the rounds in Mexico is totally welcome news.

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