Green Tech

When we reviewed the Tesla Model S, we came away very impressed by the driving character and the cabin electronics, but some features, common on other high-end or electric cars, were missing. Tesla made up for one of those features by making a smartphone app available that will let Model S owners view their battery levels.

These types of apps have become common for electric cars; Ford offers MyFord Mobile for the Focus Electric and Honda has its HondaLink EV for the Fit EV. The electric car includes a mobile data connection, which owners can use to view everything from … Read more

The days of bragging about a car stereo's wattage may be coming to an end. Bose has developed a new audio system for the Nissan Leaf that focuses on reduced electricity usage. The new system will be available as an option on 2013 models.

As current battery technology limits electric-vehicle range, automakers look for savings in auxiliary systems, and get rid of niceties such as power-adjustable seats. Bose's proposition for the Leaf is that you can still have good sound quality without a hugely powerful amp.

Six speakers and a subwoofer make up the loudspeaker part of the … Read more

It must be a new season of sharing as major automakers sign agreements to co-develop fuel cell technology. Last week Toyota and BMW said they would work together on a fuel cell system, while today Ford, Daimler, and Renault-Nissan announced they would pool research into fuel cell technology. In their joint press release, Ford, Daimler, and Renault-Nissan said they would produce fuel cell vehicles in 2017.

All of these companies have been working on the technology, and some have demonstrated prototype vehicles. Mercedes-Benz, part of Daimler, has been testing multiple generations of its F-Cell fuel cell vehicle, and currently runs … Read more

It's cold. I'm sitting here with a heating pad on my desk chair. I use it all the time, but I have no idea what its real impact on my electric bill is. The same goes for my LED Christmas tree and the glowing smartphone charger I leave plugged in all the time. The big mystery around the cost of electrical appliances could soon be cleared up if a little device called MeterPlug hits its fundraising goal on Indiegogo.

MeterPlug plugs into an outlet. You then plug your appliance directly into the MeterPlug. The gadget reports energy usage over Bluetooth to an app that translates the draw into actual dollars. You can manually enter your local electricity prices or use the app's average for your country.… Read more

It's easy to take our electric lights for granted. Many people in developing counties don't have the luxury of electric grids and have to rely on kerosene lamps to brighten the night. Kerosene costs money and breathing the fumes is dangerous. A new light powered by gravity could be a superior solution to lighting needs.

GravityLight doesn't need to be recharged through solar cells. It doesn't use batteries at all. It's powered by the same force that keeps our feet on the ground. A weight attached to the light takes 3 seconds to lift up, but provides 30 minutes of light as it descends. … Read more

Bike riding is already a more environmentally conscious pursuit than driving around in a car, but you can really take it to the green extreme with a bike made from 100-percent-recycled aluminum. ReCycle is working at raising funds on Kickstarter to put its first full run of bikes into production.

There are some nice design tweaks that make the ReCycle bikes stand out. The usual seat tube support is gone. Two of the models have belts rather than chains. The eco-friendly aspects go beyond the use of recycled aluminum. The bikes also have saddles and grips made from cork. … Read more

Mark Smith, the chief executive of rare-earth mineral mining company Molycorp, was replaced today, a month after the company disclosed it was under a Securities and Exchange Commission investigation regarding the accuracy of its public disclosures.

Rare-earth minerals are key ingredients for mobile phones, as well as wind turbines, hybrid cars, and night-vision goggles. The vast majority of rare-earth minerals are mined in China. But Molycorp is one of a handful of Western companies hoping to elbow into that business. This summer, Smith gave CNET a tour of Molycorp's Mountain Pass, Calif., mine as part of a series on … Read more

With its many pedestrians and subway users, New York seems like one of the greener cities in the U.S. But it still produced a gob-smacking mountain of carbon emissions in 2010.

In the vid below from graphics firm Carbon Visuals, the 54 million tons of CO2 is illustrated as a mass of spheres that tower over the city, engulfing its buildings.

Some 75 percent of the pollution came from buildings, with the bulk of the rest from transport, according to the firm, which used city data. … Read more

LOS ANGELES - The Green Car Journal announced its Green Car of the Year award at the Los Angeles Auto Show, choosing the Ford Fusion in a field of five finalists that included Toyota, Mazda, Dodge, and another Ford model.

The 2013 Ford Fusion mid-size sedan comes out with a wide array of drivetrain options, from a standard 2.5-liter engine to a plug-in hybrid system. With its base 2.5-liter four cylinder, the Fusion gets an EPA average of 26mpg. Prospective buyers can also upgrade to either a 1.6-liter or 2-liter Ecoboost engine, each using direct injection and … Read more