Odds are you've heard much more about E85 than you've actually seen of it.
New federal standards will dramatically increase fuel efficiency in cars and light-duty trucks by 2025.
San Francisco may become be the second city after Seattle to join a growing movement to divest from the companies driving the climate crisis.
Researchers from the University of Michigan have developed a way to “pressure cook” algae to produce biocrude. The process shows promise in the development of green fuels.
Step on the gas with a clear conscience: Use Clean Cities' vehicle comparison site to find the right light-duty model among alternative fuel vehicles, and green up your life in the fast lane.
With population growing and oil supplies diminishing, more land than ever is being consumed to grow both food and fuel crops.
Do we have a national goal in America? Would this be a good one?
A Louisiana State University forestry researcher is looking at a fast-growing plant called switchgrass as a potential biofuel feedstock. Using switchgrass biofuel is practical because the plant requires little fertilizer and can tolerate drought and floods.
Two grasses under consideration for biofuels in the United States are considered invasive species that may do more harm than good.
Does 100 mpg fuel economy justify cross-country recreational travel? Maybe so and maybe not, but I need to be careful—increasing fuel efficiency can increase fuel consumption if you increase your driving, too.
Comparing today’s cars that get 40 mpg or better to the high-mpg cars of a few decades ago is neither an accurate nor fair comparison.
The T7 Series fuel economy is attributed to the design of the engine. With the SCR technology, the engine “breathes” clean air, instead of re-circulated exhaust gases, allowing the engine to simply do what it’s designed to do: produce maximum power.
Supply and demand have kept E85 gas prices low, and politics has played a role.
Here's why a heat pump might be a good choice for your home.
As America’s fuel use continues to decrease, proposed solutions such as the Keystone XL pipeline and food-to-fuel conversions may be unnecessary.
One of the newest apps for green car owners is Cleaner and Greener Fuels, which locates refueling stations for alternative fuel vehicles.
2011 Fuel Economy Contests in several locations in the U.S.
What does MAX have in common with and old action, adventure, paranoia, social commentary BBC TV series of the '60s?
MAX will enter a race, uhhhh we mean event, and will run on veggie oil.
The Rally Green starting flag drops in Knoxville Iowa, Sunday August 15, beginning a cross country fuel economy rally ending in San Francisco the folowing Saturday. MAX will be there and going for the gold.
One of our readers made a fiberglass and carbon fiber roof for his own home-built MAX high-mileage sports car, and here's how he did it.
TRUFUEL, a ready-to-use engine fuel, can be used in two and four-stroke engines.
Last weekend more than 12,000 people flocked to Washington, D.C., for a three day demonstration to demand the creation of green jobs, cuts in the country’s greenhouse gas emissions and less dependence on fossil fuels.
Declare energy independence this Independence Day, 2014
The G-20 met in Pittsburgh this week to discuss global economic issues and agreed to eliminate fossil fuel subsides to combat gloabl climate change.
T. Boone Pickens is calling Americans to submit videos about the importance of independence from foreign oil. The contest ends Oct. 25, and the winning video will be sent to national political leaders.
Criminal racketeering by the fossil fuel industry is destroying our environment.
Tips on how to increase your car's fuel efficiency by checking the tire pressure.
350.org founder, Bill McKibben, asks college students across the nation to “Do The Math” on why climate change matters and urges them to demand divestment from fossil fuels on campus.
Here's a rundown of the many reasons behind the recent rise in the price of gas.
Diesel engines are engineered and built to be more robust due to the higher compression ratio in the combustion chamber and the high torque output they produce.
Our expert explains what really happens when fuel additives are put in a gas tank, and how this may cause more harm than good. If you really want to increase your mpg, our expert has a few tips for that as well.
For the first time ever, Diesel motorcycles publicaly demonstrate their potential in real riding.
MAX gets a low cost, high accuracy, and none too attractive fuel gauge. Two out of three ain't bad.
How much energy does it take to travel? Can we collect this from the vehicle while we are using it?
Grasshopper announces a new online tool designed to calculate fuel costs and impacts of commercial mowing equipment.
My MAX car got licensed with the local DOT to run on vegetable oil fuel and pay its proper taxes per gallon. Each state has its own rules; here's how we do it in Oregon.
Using MAX to test a tubing streamlining material, resulted in a significant reduction in drag.
On a summertime cross country trip from Oregon to Ohio, I restricted MAX's radiator inlet air a little at a time, demonstrating that very little inlet area (28 square inches) provides sufficient air for cooling.
MAX got some new lager diameter wheels. They should do the job and the price was right, and as a bonus, they look terrific.
MAX got a smog test at an Oregon DEQ Vehicle Testing Station, and passed with high marks.
MAX ran with the motorcycles in the Vetter Fuel Economy Challenge, with surprisingly high marks--127 miles per gallon. Surprising to the author, at least.
We're cleaning up the details on MAX. One of the finishing touches is clear streamlined headlight covers, and here's how I made them.
See the power of gasification before we hit the road.
Energy goals for America
Some burglar wanted my Millermatic 180 more than I did, I guess. Here's why I liked it and why I'm going to get another one.
We're looking at a handful of low cost improvements, and since MAX is undergoing repairs at the moment, this is a good time to make them.
Engine efficiency depends on rpm (among other things) and slower isn't always better. More wisdom from the Honey Bear.
Technology marches on. It comes at a price, but a FloScan fuel consumption and mileage meter could give me instant feedback on MAX's fuel efficiency.
Hybrid cars save fuel by shutting the engine off at idle (among other things). Does MAX burn enough fuel at idle to be worth the effort? Our honey bear can tell us.
To improve MAX's versatility, the passenger seat is removable, which converts MAX from a couple carrier to a cargo carrier.
A video demonstration of MAX's windscreen, which deflects air around the driver's face with minimal aerodynamic drag.
The "High Mileage Car Show" at the latest Mother Earth News Fair, and the pleasure of driving a fuel efficient car.
MAX got a new set of high efficiency Goodyear tires, and a second set of wheels so we can do comparison testing. Will the difference be detectable to our low budget testing technology?
The first civilian-built MAXes are nearing completion, and here are a couple of them that are rolling under their own power.
MAX at its first autocross. Hey, it's a sports car, right?
A car's electrical consumption adds to its fuel consumption. For MAX, turning off the headlights improves fuel economy by roughly 4 mpg.
An introduction to DraftSight, Dassault Systèmes' 2D CAD software. It's professional quality and it's free, and Jack is converting all the MAX fabrication drawings to DraftSight .dmg documents.
MAX version 2.0 is about to start moving. This may come as a surprise, but Jack is going to try it with biodiesel.
MAX gets a temporary mash-up of old and new style body parts (the new nose is at the fiberglassers' having a mold made so we can make more of them) to get road-legal for a trip to Canada.
How much power and performance does a car need for a guy to get a gal's attention? According to MAX fans, not very much.
What kind of mpg did MAX get in the race? How did Jack get fuel along the way? How much can you get for a t-shirt and a copy of Mother Earth News? Answers to these exciting questions inside!
You can run a truck on wood chips! No joke. Mother Earth News reported on this idea more than 25 years ago and the idea lives on. Using recycled water heaters, you can burn wood chips to power a truck, with little or no engine modifications required.
Results of the long-awaited cooling system test, which shows how little air MAX needs through the radiator.
In the interest of making MAX a smidgeon safer, I've added side bumpers to the passenger compartment. Here's why I made them this way.
The clock is ticking and I've been taking some shortcuts on getting MAX ready for Rally Green ... and some have turned into long cuts. I need to work smarter, not faster.
MAX is back at the shop, awaiting diagnosis and correction of an overheating problem, plus some additional body work before its next venture.
Jack missed Rally Green and MAX has a mysterious overheating problem.
How will we live with no gas at the pump and no power in the grid?
You can save gas and money by keeping your tires correctly inflated. And now a group of high school students has launched a project to encourage drivers to regularly check their tires.
Whether you’re looking for a sporty two-seater, a large family vehicle, or a heavy-duty farm or work truck, here's how to find the best options for vehicles that use less fuel and save you money.
Ever wondered what its like to drive around using wood as fuel? Tag along with Chris as he fires up his wood gas truck.
Hit the road, using wood for fuel! Chris Saenz takes a trip on wood gas power.
MAX won an award at the 2014 Maker Faire Bay Area for...gosh, we don't really know, but it was best in its class.
The EcoAire is designed to be installed in much the same fashion as a window air conditioner and just as easily.
Hybrid-Like Fuel Economy Starts at $18,895; Goes on Sale in January
Land rich in biodiversity isn't just more productive than land planted with a single crop. It turns out that increased biodoversity also significantly effects the total "bioenergy" of the land, as well as its carbon footprint.
A few simple steps to make sure your tractor is ready for spring.
Natural Home editor-in-chief Robyn Griggs Lawrence explains a Pew Charitable Trusts study that finds that jobs in the clean energy sector are growing faster than jobs in the fossil fuel industry.
For the first time ever, alternative energy sources such as wind, solar and geothermal power received more investment money than fossil fuels such as coal and oil.
For the first time, investors put more money into alternative energy sources such as wind, solar and geothermal power than fossil fuels such as coal and oil.
Biomass grass crops can be established on marginal lands and processed as a fuel replacement for heating oil or propane
There are many ways farmers can benefit from renewable energy, including wind energy, solar energy, energy efficiency and biofuels.
A question about our future.
Don't like weeds? Well, maybe this will change your mind. An article in the New York Times, discusses possible ways that weeds could help fight global warming.
Mankind’s use of fossil fuels during the last 200 years has dumped millions of years of sequestered carbon into the atmosphere in the form of Carbon Dioxide. Since the beginning of the industrial revolution, 315 gigatons of carbon have been added to the atmosphere, leaving the carbon cycle 315 gigatons out of balance.
Blume Distillation debuts appropriate-scale biofuel distillation equipment that will allow farmers, entrepreneurs, municipalities and communities to produce their own alcohol fuel from a variety of readily available fuel stock sources.
Read about new legislation that would stop the government from funding the fossil fuel industry. Then, sign your name to the petition and make a difference.
MOTHER EARTH NEWS is proud to announce we have won a prestigious publishing award for our Guide to Green Cars.
Jack took MAX to a local car show and found that even if they're not looking for high mileage, folks think MAX is cool.
MAX has very low rolling resistance, as demonstrated by this three year old kid pushing it around the building.
Renowned motorcycle inventor and longtime aerodynamics expert Craig Vetter stopped by the MOTHER EARTH NEWS office on his way home from his latest fuel economy challenge.
At the Vetter Fuel Challenge in Ohio, vehicles powered by electricity, diesel and gasoline competed to see who would consume the least fuel in dollars and cents.
Explore how you can make your own home grown organic fuel to power your own transportation or electricity.
Use a digital tire gauge and learn how to check tire pressure regularly to get better gas mileage. While other types of gauges exist, the digital tire pressure gauge is an accurate and simple way to keep your tires properly inflated. Read this digital tire gauge review to see what digital tire pressure checkers you can buy.
Volkswagon's high mileage (1 liter of fuel per 100 kilometers) car is getting closer to production. Expect to see 100 of these available to the public in 2013.
Why pre-1960 race cars were more efficient than post-1960 race cars, and thus a better example for high efficiency highway cars.
The tail end of MAX's bellypan (diffuser) gets tuft tested, and the attached video shows the results. This was the finishing touch that got MAX its 100 miles per gallon on the highway.
This fall's Fuel for the Body T.O.U.R. ("Total Organic Understanding Ride") will educate the public on the benefits of living a green lifestyle that includes eating organic food and supporting local, organic farmers.
Jack has dismantled MAX's body and is making molds from the body parts, so other MAX-like car builders won't have to duplicate his work.
MAX debuts by taking the checkered flag of the 800+ mile, no gasoline consumed, Escape from Berkeley race.
Conservation over corn.
MAX is getting prepped for paint, and all the essential bodywork is done for the new, streamlined roadster body.
Craig Henderson and his Avion high mileage sports car went from Canada to Mexico at 119.1 MPG. He plans to produce Avion kits.
Wood gas, or wood gasification, is a decades-old renewable energy technology that converts chunks of firewood, wood chips or other cellulosic biomass to power vehicles.
MAX is getting a garage mate. We're building a high-mileage pickup truck for those jobs that a sports car can't do, and this post outlines what we're starting with.
I was gratified when, two weeks ago, Consumer Reports announced that the Chevy Volt was the best-loved car in the world among people who drive one – for the second year in a row. I have never loved a car like I love this one. And I have loved some cars.
Homes in the United States a responsible for one fifth of all carbon dioxide emissions. Simply taking steps to reduce these on a domestic level will help positively impact carbon outputs, decreasing environmental damage.
First in a series of blog posts which will cover conversion of lawnmowers and small engines from gasoline to propane.
Learn more about the upcoming Vetter Fuel Economy Challenges.
This posting will discuss how the buring of fossil fuels is putting strain on the ecosystem of the ocean.
This posting discusses the role of carbon dioxide emitted from the burning of fossil fuel in ocean acidification. We also discuss the potential effect ocean acidification will have on marine inhabitants.
We discuss the concept that carbon dioxide released from the burning of fossil fuels is partly responsible for the current atmospheric carbon overload. We also briefly discuss other human activities that contribute to the atmospheric carbon overload.
This blog explains how the carbon cycle regulates atmospheric levels of carbon dioxide. The blog also discusses how the burning of fossil fuels has disrupted the carbon cycle which increases the amount of carbon dioxide in the atmosphere.
There are many ways that each of us can lessen our unhealthy dependence on filthy fuels. You can do so in every area of your life, from choices you make regarding your house and home improvements, to food, transportation, and other consumer choices.
In this posting we discuss the benefits of converting to renewable energy sources vs. the consequences of continuing to use fossil fuels.
In this posting we discuss how rock weathering controls the level of carbon dioxide in the atmosphere. We also discuss why rock weathering can't remove the excess carbon dioxide in the atmosphere that was generated by our use of fossil fuels.
Propelling a vehicle with air or water is possible, but whether it’s practical is another story.
Wind power grew by 30 percent and solar power grew by 40 percent in 2010, according to a new report.
According to the Federal Energy Regulatory Commission, 100 percent of the electric generating capacity added in January was renewable.
Western civilization is totally dependent upon cheap and abundant energy. Three quarters of the petroleum we burn in our engines is imported. Could it be cut off suddenly? Without cheap and abundant energy, our way of life would collapse. If we value our freedom and independence, we should not be relying on foreign petroleum. We should be making our own energy.
This is a rundown of films that came out in the last few years. These films cover a wide range of environmental topics, from energy, climate, and fuel, to food, farming, and health. Many of the films have won awards or been critically acclaimed.
Rancho Margot in Costa Rica is completely off the grid and constantly closing the circle. Nothing is wasted on this self-sufficient ranch, where everything is considered a resource--including methane from the compost ovens.