As concerns about the environment mount, technology companies large and small are responding to the call for greener electronics.
At this year's annual Consumer Electronics Show in Las Vegas, more exhibitors than ever before displayed environmentally-friendly products.
Although hard numbers are not available, CES organizer Tim Herbert, senior director of research for the Consumer Electronics Association, estimated that the number of green products and services had increased tenfold over last year.
He pointed to the new Motorala Moto W233 Renew phone, made from recycled plastic bottles, and a new routing service, EcoRoute, from GPS company Garmin, that plots directions for the most fuel-efficient course, as two of many devices targeting eco-minded consumers.
Although some confusion exists about what "green" actually means, Herbert's research indicates that most consumers believe companies should do more to protect the environment.
ABCNews.com walked the floor at CES to see what's new in green technology. Here's a sampling of what we found:
Launched at CES by Cleveland-based Tremont Electric LLC, nPower PEG (or personal energy generator) is a novel product that uses human energy to power mobile devices, such as cell phones and mp3 players.
"It harvests your human kinetic energy -- your up and down walking motion," inventor Aaron LeMieux said. "With that we're able to charge your mobile electronic devices."
LeMieux, an engineer, came up with the idea when he hiked the 1,500-mile Appalachian Trail about a decade ago.
"I wanted a device that I could take and just throw in my backpack and be able to walk along," he said.
The device -- a closed, aluminum tube about 1-foot-long and an inch in diameter -- can generate power in a way that replicates a wall outlet. If it takes 15 minutes to charge your cell phone to a certain point, LeMieux said it would take 15 minutes of walking to create the same amount of power.
When you're walking, hiking or biking, the stick can generate energy. But it also works on the subway or bus. In an emergency, you could even shake it.
The nPower peg isn't on the market yet, but LeMieux expects to price it at $149 when it becomes available.
San Ramon, Calif.-based Green Plug recently announced the Innergie mCube 90G, a universal power adapter that eliminates the need for multiple chargers.
According to the company, each year consumer electronics companies churn out about 2.5 billion incompatible power supplies and dump another 700 million discarded products in landfills. Green Plug's one-size-fits-all approach attempts to reduce waste.
It wasn't just the smaller companies that unveiled eco-friendly products and strategies. Global giants such as Panasonic, LG and Toshiba also went to great lengths to communicate their efforts to green their products and processes from cradle to grave.
Among the biggest power-suckers in any home, televisions are getting energy-efficient makeovers.
Panasonic announced a new plasma television that triples the luminance efficiency while reducing the power consumption to one-third of the 2007 models. The company also said it reduced power consumption of its X1 series televisions to 50 percent of 2007 models.
Sony's new KDL-VE5 series motion-sensing televisions also court the environmentally-conscious by automatically shutting off when they can't detect the presence of a viewer.