Cities

Kids -- and plenty of young-at-heart adults -- love video games. Targeting a captive audience, Area/Code uses fun and flashy games to tackle such real-world topics as debt and even crossing the...

2 | September 9, 2010 4:00am | By Christina Hernandez

Echelon's new open software platform promises to bring intelligence to the smart grid in the form of distributed control. Will it make energy infrastructure more bulletproof?

September 8, 2010 9:56am | By Andrew Nusca

The U.S. Open is pushing a green agenda -- with the help of some prominent corporate partners. We visited this year to learn more about recycling, energy and awareness at the event.

September 8, 2010 6:52am | By Boonsri Dickinson

Almost two-thirds of U.S. states face a water shortage by 2013. Is your company prepared for the potential business impact?

2 | September 8, 2010 5:08am | By Heather Clancy

Mayor Mark Stodola says only 35 percent of Little Rock's households recycle. Would providing them some monetary incentive increase participation?

5 | September 8, 2010 2:00am | By Melanie D.G. Kaplan

President Obama announces a 6-year transportation overhaul. Will more Americans be riding the rails at high speeds soon?

29 | September 7, 2010 4:00am | By Melissa Mahony

A vehicle-mounted camera with software that can sense the presence of a pedestrian and alert the driver within three seconds -- in many cases, providing time to swerve out of the way.

2 | September 6, 2010 6:05pm | By Joe McKendrick

New York leads major U.S. cities as the safest for pedestrians, followed by Seattle, Boston and San Francisco. But Europe and Asia have America beat.

3 | September 3, 2010 1:11pm | By Andrew Nusca

Self-assembling solar cells; Ecstasy for PTSD; big box growing centers; value-added teacher data; most ambitious transport projects.

September 2, 2010 2:19pm | By Andrew Nusca

SEPTA and Viridity Energy are adding a big battery to Philly's transit system. The plan is to capture energy from braking trains and feed some of it into the city's grid.

15 | September 2, 2010 4:00am | By Melissa Mahony

NASA figures out Hurricane Earl's path. Can New York City survive a hit from a major hurricane?

12 | September 1, 2010 9:51pm | By Boonsri Dickinson

What do companies do with their old electronics? They give them to CloudBlue CEO Ken Beyer, who reuses them, harvests from them or recycles them -- and turns a profit, too.

2 | August 31, 2010 6:00am | By Andrew Nusca

Five years after Katrina hit Louisiana, a video from Goddard Space Flight Center shows how NASA satellites captured the storm.

1 | August 31, 2010 6:00am | By Deborah Gage

Why doesn't water get more attention? We talk with GE Power and Water chief sustainability officer Jeff Fulgham, who explains why water needs a new business model for conservation to make sense.

24 | August 31, 2010 3:00am | By Andrew Nusca

Canada's largest solar rooftop; Google: $86 million for public housing; Large Hadron Collider; space privatization; Detroit's new direction.

August 30, 2010 1:24pm | By Andrew Nusca

Much of Norfolk's waterfront is controlled by the Navy or private industry, but some homeowners hold land on rivers and creeks. For the sake of water quality, the city is trying to steer them away...

August 30, 2010 2:00am | By Melanie D.G. Kaplan

Who won SmartPlanet's Kindle contest? You ask, we answer: meet the lucky reader who won.

August 27, 2010 1:00pm | By Andrew Nusca

Drivers in China were stuck for days in the mother of all traffic jams. Experts say technology and analytics can help prevent such occurrences, as cities grow. And more ideas are being sought.

4 | August 25, 2010 6:30pm | By Joe McKendrick

In the 21st century, the world will be run by cities, not countries. Author Parag Khanna explains why that's both good and bad -- and how it will change everything.

4 | August 25, 2010 8:46am | By Andrew Nusca

In a city already plagued with high rates of childhood asthma, Hurricane Katrina changed the landscape of the disease in New Orleans. An asthma expert talks about managing the epidemic today.

3 | August 25, 2010 1:39am | By Melanie D.G. Kaplan