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Paris reclaims pavement for pedestrians, The Cloud Collective farms algae near the freeway.

Creating green space for pedestrians or growing algae for energy are two practical solutions for when there's too much roadway.

The EPA is boosting the amount renewable fuels in the US gasoline supply despite opposition by an unusual alliance.

Old-school surfers have a special place in their heart for the classic paneled station wagons affectionately referred to as "woodies." Now, some folks in Finland are looking to put a new spin on the term with what it says will be the ultimate "green" vehicle.

The Environmental Protection Agency continues to give the green light to E15, but the biofuel doesn't have to come from corn ethanol. The exact source of the ethanol in gasoline – whether its 10 percent ethanol (E10) or 15 percent (E15) – isn't impacting the E15 debate, it does in the "food vs. fuel" debate, and that's why a potential solution coming out of Colorado caught our eye.

Many alt-rock fans think fondly of Primus, the name of the Bay Area funk-metal group led by legendary bassist Les Claypool. Now, perhaps, alt-fuel fans can get a similarly positive vibe.

El Camino converted to run on wood gas – Click above to watch video after the jump

To support President Obama's goal of reducing America's oil imports by a third by 2025, the U.S. Department of Energy (DOE) announced that it will accept applications for $12 million in funding for laboratory or small pilot-scale projects aimed at developing advanced biofuels. Successful projects will focus on technologies that enable biofuels to directly replace gasoline, diesel or jet fuels without modifications to vehicles or to the fueling infrastructure.

The U.S. Department of Energy's (DOE) Biomass Program will host a webinar entitled "The Promise and Challenge of Algae as a Renewable Source of Biofuels" later today (2-4:30 p.m. EDT). This online conference marks the beginning of the DOE's series of webinars that will focus on the development of renewable fuels, power and products from biomass resources.

Corn ethanol promoters, get out your keyboards. You've got another dragon to slay. A new study has found that it is more efficient to straight-up burn plant material to generate electricity and then charge up electric vehicles than to make ethanol for those vehicles. Professor Elliot Campbell at the University of California Merced was lead author of a study that looked at the most efficient way to power transportation vehicles from biomass. The headline numbers: "biomass converted into electrici

Ever since the debut of the Audi R10 in 2006, the mighty diesel-powered sports cars have been running on a gas-to-liquid (GTL) diesel fuel supplied by Shell. For the 2008 running of the 24 hours of Le Mans coming up in a few weeks, Audi and Shell will try a new blend that combines the GTL fuel with a BTL (biomass-to-liquid) fuel supplied by Choren. Choren is a German company that has been collaborating with Audi's parent company Volkswagen to develop the BTL diesel branded as SunFuel. Like cellu

The project BioReGen is a very interesting plan developed on abandoned industrial estate in the north-east of England (Durham County). Basically, the project recovers polluted land by planting specific crops - in this case, crops intended for biofuels. The process is called biorecovery (see also MSU's project).

Ethanol is in the middle of a flux right now, with the common corn-based ethanol being by far the most available source of the alternative fuel. The future of ethanol is cellulosic, but the technology has not matured to the point where the consumer can fill their tank with the cellulosic-based fuel. Unfortunately, the corn feedstock that we use for the ethanol that is common in the United States is not nearly the most efficient source of biomass. There are many better choices for biomass, like s

Researchers at the University of Minnesota are working on a new method to create syngas from biomass which can then be burned directly to make electricity or converted to many different liquid fuels that we use today. There are already processes being used to create syngas, but this particular one might be the quickest and most efficient. Using "a 700 to 800 degree Celsius porous surface" along with the (very expensive) precious metal rhodium, their process breaks down the biomass in 70 millisec

This is the second vehicle that we've shown you which is made almost entirely of biomass. The first one was undoubtedly cool and used hemp materials for the bodywork. That car ran on ethanol and would be a first class ride for the right person, and it was capable of 150 miles per hour. This one, on the other hand, is made entirely of wood. The source article does not mention if it was nailed, screwed of glued together... maybe all three. I would not recommend such high speeds in it, which is alr

Cellulosic ethanol is the next step in making a definitive replacement for foreign oil. The reality is becoming ever closer, now in large part due to Range Fuels. The State of Georgia has just awarded them a permit to build the first plant to employ their patented technology to produce 100 million gallons of cellulosic ethanol per year.

Finding a way to reduce the cost of effectively and cheaply producing fuels from biomass waste is what some consider something of a "holy grail" when it comes to biofuels. If there was a fuel that was cheaper than petroleum-based fuel that people could put in their tanks which would not have any negative effects on their vehicle, people would buy it, regardless of whether they care about the environment. Researchers at the University of Georgia are working on just such a fuel. In their early tes

Bioenergy Australia, a government-industry forum to foster and facilitate the development of biomass for energy, liquid fuels, and other value-added bio-based products recently put on The Bioenergy Australia 2006 – A Growth Opportunity for Energy and the Environment Conference. Presentations at the conference were given on bioenergy projects and project development case studies, and covered bioelectricity, liquid fuels, gasification and pyrolysis and their applications, anaerobic digestion

2006 was a year that saw "amazing strides" in the biomass industry, says Jetta Wong, agriculture and energy policy analyst with the EESI's Agriculture and Renewable Energy program (why, with a name like that, could she not have been an auto industry analyst?). New laws to promote biofuels, more biofuel production capacity and an ever-growing appetite for biofuels in America were the highlights for 2006, and there's probably more ahead in 2007. That is, unless "big oil" can continue to put the sc

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