November 13, 2018, 2:33 p.m. by Christian Cotroneo
It's not just the sheer number of us, but also our growing appetites.
Video: Obama announces historic new car standards
May 19, 2009, 2:14 p.m.
Watch President Obama announce his sweeping fuel-efficient standards for new cars.
Video: Meet the Karma hybrid
May 19, 2009, 12:41 p.m.
It may cost a bundle, but it burns no fuel for the first 50 miles.
Video: Obama's energy czar on new car standards
May 19, 2009, 10:04 a.m.
Carol Browner talks with MSNBC about Obama's historic new car standards and how it will help the American auto industry.
ON THE STREETS: How NOT to Drive a Taxi in New York
May 12, 2009, 4:41 p.m. by Meredith Darlington
Things go awry as Jonathan interviews a New York City cabbie.
Environmentalists are bringing solutions right to your desktop via Google Earth
May 4, 2009, 5:03 a.m. by Peter Dykstra
You really do have the whole world in your hands.
In 1972, a computer model predicted the end of the world — and we're on track
12 reasons to use a bicycle for transportation
E-bikes are booming among boomers
Plane, train or automobile: Which has the biggest footprint?
Do you have to modify a diesel engine to run it on vegetable oil?
5 brilliant mathematicians and their impact on the modern world