New federal standards will dramatically increase fuel efficiency in cars and light-duty trucks by 2025.
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.
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.
As America’s fuel use continues to decrease, proposed solutions such as the Keystone XL pipeline and food-to-fuel conversions may be unnecessary.
Tips on how to increase your car's fuel efficiency by checking the tire pressure.
Engine efficiency depends on rpm (among other things) and slower isn't always better. More wisdom from the Honey Bear.
The "High Mileage Car Show" at the latest Mother Earth News Fair, and the pleasure of driving a fuel efficient car.
There are many ways farmers can benefit from renewable energy, including wind energy, solar energy, energy efficiency and biofuels.
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.