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.
What's the best car for older drivers?
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?
In 1972, a computer model predicted the end of the world — and we're on track
5 brilliant mathematicians and their impact on the modern world
22 awesome projects for Raspberry Pi