Car2Go is now the world's largest service, with a million members and a new outpost in Brooklyn.

What is Uber anyway? Is it a taxi service or as it claims, a technology platform, or something else altogether?

A new report from KPMG sees 500 billion annual miles from people who might have otherwise stayed home.

The Lit Motors C-1 can cruise 200 miles on a charge, and even a truck can't pull it over.

The introduction of the 2015 Kia Soul EV brings the notion of a practical, affordable all-electric car closer to the driveway.

The City of Lights is for lovers ... and pedestrians, bikers and transit riders.

Next week Tesla will announce new home and utility solutions — but do they pencil out?

how to sell electric cars

Running 2 groundbreaking companies at the same time, Musk succeeds by putting himself on the line more than anyone else, says author Ashlee Vance.

Proterra's new Catalyst is a lightweight, energy-efficient marvel with six times the efficiency of diesel.

Factoring in no-cost charging, electric vehicles are a no-brainer, and now Volta has a national plan.

Local Motors uses tech, crowdsourcing and design contests to create tomorrow's autos today.

The rumor mill says an all-electric shortened Panamera could grace the show stage in Frankfurt, with 250 to 300 miles of range.

At $1 million per mile, the cost of wireless roads would be prohibitive.

And no, we won't be able to use ringtones. (There will likely be standardized noises.)

Effects include people traveling more, in bigger cars (EV sales are flat), and a dip in public transit.

As CES proves, the gadgets are more important than the color and the trim package.

BMW Vision Next 100

Millennials and lower-income consumers are in a buying mood. They think that brand matters, and Tesla is the ultimate brand.

A ban on gas and diesel cars is the latest in Paris Mayor Anne Hidalgo's ongoing crackdown on air pollution.

Electric carmakers need more cobalt for their lithium-ion batteries. Tiny Cobalt, Ontario, aims to become a sizable supplier.

Reebook partners with architecture firm Gensler for 'Get Pumped,' a conceptual scheme in which health-conscious drivers rule the roads.

Video: At-risk young people get hands-on training and spread their new green skills throughout The Big Easy.

Video: At 6 billion bottles and counting, a Fortune 100 company has forged a partnership that’s created the largest recycling center of it’s kind in the wor

Muncie, Indiana, police department lets residents pay off parking tickets with donations to the local animal shelter.

Countless people drove past an injured armadillo, until one compassionate woman came along.

Greeting people you pass on the street with a smile and "Hello" is good for you and them.

Rescuers spent months nursing a paralyzed leopard until the day he stood on his own paws.

Escaped camel, cow and donkey in Kansas are 'halfway towards a live nativity.'

Air conditioners have made architects lazy, and we've forgotten how to design houses that might work without it.

Why not design our homes so that we can get at the things that need to be changed? That's the idea behind "Open Building".

With its edible veggie walls and lack of traditional HVAC systems, Carbon Positive House aims to "free us of modern day lifelines."

There are many different types of staircases that can make your home a more efficient, safer and even a more attractive place.

An interesting new prefab in Australia is described as being "Carbon Positive," but what does that mean?

SwimCity is a housing concept for young Swedes who don't mind donning goggles or hopping in a canoe as part of their commute.

Just ask Jenna and Guillaume, who quit their 9-to-5 jobs to pursue their dream of touring North America in a custom-built tiny house.

Environmentalist Peter Bahouth shares the inspiration behind Atlanta's most leafy and lovely Airbnb listing.

Bjarke attack! The Danish maverick is the subject of a climate-themed retrospective at the National Building Museum.

Sky City was supposed to be 220 stories and this building was supposed to be 97 stories; but there's more to building than just technical innovation.

A tour of the Bullitt Center in Seattle confirms that it's as green as it can be.

With the Living Building Challenge now under its belt, the facility is being heralded as one of the greenest buildings in the world.

Beauty abounds in the weather-warped details of Dwell Development's latest net-zero residence.

The after-school carpentry wizards at Sawhorse Revolution have big, community-bettering plans for micro-housing.

In a once iffy stretch of East Oakland, Tassafaronga Village stands as a model of affordable green housing done right.

Co-owned by a quartet of couples, Llano Exit Strategy blends communal living and rural solitude.

Michael Green, champion of lanky, carbon-neutral buildings, sets his sights on the City of Light.

Friggatto cleverly evades the exhausting, expensive process of securing a housing permit in Sweden.

Beautiful and daring, Cinder Cone will resonate with those who have graduated from Thrasher to Dwell.

Heatherwick Studio's mighty pretty design for Maggie's Centre Yorkshire resembles a cluster of massive potted plants.

Despite its petite size, Bi(h)OME carves out ample room for urban wildlife.