May 20, 2019, 4:59 p.m. by Christian Cotroneo
It makes a rocket's roar sound like elevator music.
Move to the city and reduce your carbon footprint by 70%
June 12, 2009, 1:23 p.m. by S.A. Rogers
Study shows that moving to an urban environment may be the single greenest thing you can do.
Do you have to modify a diesel engine to run it on vegetable oil?
June 5, 2009, 3:25 p.m. by Vanessa Vadim
Vanessa's car can run on diesel, straight vegetable oil and biodiesel, or any combination of the three.
Help make MNN better
May 28, 2009, 12:24 p.m.
We've got 15 questions to help us determine how satisfied you are with MNN. We appreciate your time.
What is eco-friendly technology?
In 1972, a computer model predicted the end of the world — and we're on track
Plane, train or automobile: Which has the biggest footprint?
Should I unplug my appliances and, if so, will I save money on my electric bill?
4 ways to charge a phone when the power's out
13 optical illusions that will blow your mind