New Volkswagen does 313 miles to the gallon

Volkswagen has created what it calls the world's most economic car, running for 313 miles on a single gallon of diesel.

Gulf oil dispersant hung around for months

Much of the dispersant used to combat last year’s Deepwater Horizon oil spill still hadn't degraded months after it was applied.

This subway is powered by displaced air

The name is a take on the words 'ecological and 'local,' but to many, the Ecoloco concept may sound just plain loco: a sustainable subway system that harnesses the air displacement created by its movement to power itself.

Scientists want to replace meat with bugs

Bugs are probably the most neglected form of protein. The crunchy crawlers may be gross to some, but to others they are a perfectly acceptable thing to eat. But will fried cockroaches and chocolate covered ants be the next big thing in the world of gastronomy?

GE: China deals will boost U.S. jobs

Thousands of jobs and lots of money in exports - according to General Electric, that's the payoff for the U.S. economy from five joint ventures the company plans to do with Chinese partners. 

Will renewables overtake fossils by 2030?

Developing economies such as China, Russia, India and Brazil currently account for around 50 percent of the world's energy consumption.

Greenland ice melt sets new record

Last year's melting of the Greenland Ice Sheet was the worst ever recorded, according to research from the City College of New York.

How to convert waste heat into energy

Waste heat, the byproduct of all kinds of machinery and processes, has long been seen as a potential source of energy - if only the capture-and-convert process could be made more efficient. 

Marines embrace solar energy in Afghanistan

It's all about the mission. That's been the overriding message from the various branches of the U.S. military as they pursue renewable-energy solutions - and Marines in Afghanistan are providing real-world evidence to back that up.

Will the U.S. ever adopt a high-speed rail system?

If the U.S. is going to go for high-speed rail, it would make sense to focus on those corridors with the potential to transport the most people.

LA mass transit gets a whole lot greener

It's the end of an era in Los Angeles, where the city's Metro system reports that it has retired its last diesel bus. 

Loss of reflectivity accelerates global warming

A new 30-year analysis has found that the northern hemisphere's loss of reflectivity due to snow and sea ice decline is more than double current estimates.

Shark inspires optimized water turbine

A Michigan man, taking a design cue from nature, might be onto a better way to harness the power of waterways across the globe. 

Enterprise first With Chevy Volt rental

Among the rental car companies, Hertz has been making the most noise lately about getting electric vehicles (EVs) into its fleet, but Enterprise just managed a small coup: The company announced it would be first to offer the Chevy Volt extended-range EV for rental.

Europe tests autonomous road trains

The EU's road train project, Sartre, has undergone its first real-world tests in Sweden.

Hitachi wants to solarize air conditioning

When the grid teeters during summertime heat spikes, it's air conditioners that are doing a lot of the damage. 

Now Hitachi is aiming to offer a distributed way to lessen the load, developing what it calls a Solar Activated Air Conditioning System.

IBM's "Watson" computer beats human players in Jeopardy

After years of planning, IBM's learning, human-aware computer Watson was put to a competition like no other - a match of Jeopardy against quiz show heavyweights Ken Jennings and Brad Rutter. The result - Watson won. Barely.

Check out this solar-powered tablet case

Downsizing the solar bag to fit evolving needs, Eclipse Solar Gear is out with a padded, tablet-sized case equipped with a flexible thin-film solar panel that the company says will provide up to 4 watts of power to recharge your mobile devices.

New solar tech sees 15% more efficiency

Smart homes and smart buildings rely on a host of wireless sensors, each of which require a small but consistent power supply.

IBM finds differences in EV attitudes

Sure, a lot of big-shot auto execs believe sales of traditional gas-powered vehicles will peak before 2020, and are focusing their energies on electric vehicles (EVs) instead. But what do ordinary Americans believe when it comes to EVs?