Transportation

Estimated savings range between $14,000 for New York commuters to $8,000 for Pittsburghers.

10 | July 14, 2010 9:21pm | By Joe McKendrick

What will New York City look like in 2030? Three architectural firms design the city's future, using high-speed transportation, green spaces and lots of ingenuity.

8 | July 13, 2010 7:13am | By Andrew Nusca

Cisco smart grid chief Laura Ipsen says the development of the smart grid parallels the development of the Internet -- and the tech giant wants in. Here's how.

1 | July 12, 2010 7:13am | By Andrew Nusca

If the city planning director has his way, Baltimore's east and west sides, known for blocks of abandoned and boarded up buildings, will be getting light rail and produce stands. Yes, produce stands.

1 | July 12, 2010 2:00am | By Melanie D.G. Kaplan

Purdue University researchers think turning biomass into biofuel on a mobile platform will make the process cheaper. But their idea still needs to be tested out in the lab before it ever begins to...

July 9, 2010 3:34pm | By Boonsri Dickinson

Hara CEO Amit Chatterjee says 2010 is the year that corporations exchange sustainability officers for sustainable operators. Here's why.

5 | July 9, 2010 7:11am | By Andrew Nusca

Lower fuel costs? Check. More storage space? Check. Less greenhouse-gas emissions? Check. If blimps do it better, will they be able to do it soon?

44 | July 9, 2010 4:00am | By Melissa Mahony

Two separate studies draw two different conclusions about the viability of high-speed rail in the Golden State.

39 | July 7, 2010 8:37pm | By Joe McKendrick

If clean technology is going to be a success, the rules for how to do business in the sector must be clearer, experts say.

3 | July 7, 2010 7:47am | By Andrew Nusca

The actor who has timed his wife's showers to calculate water usage is as 'eco' as they come. But fully greening his Los Angeles home (while preserving his marriage) wasn't always smooth sailing.

5 | July 7, 2010 2:00am | By Melanie D.G. Kaplan

VantagePoint CEO Alan Salzman says the Tesla electric car is a lot like the Apple II computer -- original, expensive and a few years before it will change the world.

5 | July 6, 2010 7:00am | By Andrew Nusca

The latest IBM report on global traffic congestion paints a picture of frustration across all major cities on the globe, but also points to technology solutions that can greatly ease this pain.

1 | July 2, 2010 8:11am | By Joe McKendrick

Beijing, Mexico City and Johannesburg are the cities in the world with the worst commutes. Here's a list of the Top 10 and Top 20.

19 | July 2, 2010 7:33am | By Andrew Nusca

At the REFF--Wall Street forum in New York City, cleantech experts discussed the state of the industry and outlined seven renewable energy targets for 2020.

1 | July 1, 2010 6:30am | By Andrew Nusca

Volkswagen's assembly plant in Chattanooga, Tennessee seeks an eco-friendly start for a new line of sedans.

1 | July 1, 2010 4:00am | By Melissa Mahony

Guidebooks aimed at helping communities mitigate -- and prepare for -- the impact of climate change are free for the download.

July 1, 2010 4:00am | By Christina Hernandez

Lithium-ion battery maker Boston-Power raised $60 million in funding. The investment will help it scale its products that store energy for plug-in electric cars and the smart grid.

June 28, 2010 7:09am | By Andrew Nusca

The future of travel will be amazing, thanks to the technology under development today. Here's a look at what your next vacation may look like.

June 27, 2010 12:10pm | By Andrew Nusca

General Motors intends to redefine transportation with the electric vehicle. Here are eight ways smart cities can help, according to Britta Gross, GM's infrastructure chief.

5 | June 25, 2010 6:46am | By Andrew Nusca

Project Sol'r, a French solar-powered blimp, successfully took flight today.

1 | June 24, 2010 4:08pm | By Dan Nosowitz