LED lighting

Green business is bustling. Companies showed off green technologies ranging fro biodegradable Styrofoam cups, eco friendlier electronics, and lighting to a power generating exercise bike.

April 20, 2011 8:37pm | By David Worthington

A big criticism leveled on LED lights is they don't match the color and quality of an incandescent light bulb. Start-up Intematix has developed a set of technologies that it believes improves LED...

10 | April 18, 2011 4:27pm

Outdoor apparel company manages a 38 percent absolute reduction, but misses target for 50 percent cut.

1 | April 13, 2011 12:30pm | By Heather Clancy

Cultured mouse stem cells organized themselves into a retina with little intervention from scientists, creating transplant and generative medicine hopes against blindness.

1 | April 6, 2011 11:18am | By Janet Fang

The cities of the future will be built around air travel -- despite high-speed rail and density schemes and telecommutes and videoconferencing. Aerotropolis author Greg Lindsay explains why.

17 | April 4, 2011 9:29am | By Andrew Nusca

U.S. president Barack Obama said Wednesday that the U.S. needs to free itself from dependence on foreign oil, and set a goal of reducing oil imports by one-third in a decade.

9 | March 30, 2011 9:27am | By Andrew Nusca

As environmental groups petition to ban some hydrofluorocarbons, the EPA approves a new refrigerant to replace one with a global warming reputation. Could such regulations combat ozone depletion...

10 | March 30, 2011 4:00am | By Melissa Mahony

Researchers are improving cochlear implants and vision with infrared light.

18 | March 28, 2011 3:12pm | By Boonsri Dickinson

The City of Dallas, Texas will convert five downtown parking garages to energy-efficient LED lighting in partnership with Lumetech and the Lighting Science Group.

3 | March 24, 2011 7:04am | By Andrew Nusca

The software company's latest sustainability report offers interactive, visual view into its key corporate social responsibility initiatives.

March 24, 2011 4:20am | By Heather Clancy

It's probably not a good idea to leave a smartphone out in the sun. But that may change if the phone was, say, solar-powered!

2 | March 23, 2011 9:09pm | By Tuan C. Nguyen

Reps from baseball, basketball, football, soccer and hockey teams have formed the Green Sports Alliance, aiming to share green practices across leagues and sports venues.

March 22, 2011 5:04am | By Heather Clancy

This rapid, high-res imaging technology photographs human tissue with the light emitted by a particle accelerator.

2 | March 21, 2011 9:41pm | By Janet Fang

Two American spacecraft meet, two-hundred million miles away.

4 | March 10, 2011 3:31pm | By John Herrman

Lighting startup Bridgelux announced a major breakthrough by demonstrating a silicon-based LED light bulb.

21 | March 9, 2011 7:20am | By Andrew Nusca

Utility Green Mountain Power and Efficiency Vermont are proposing to reduce the charge to cities for the LED-enabled and leased lights.

1 | March 8, 2011 4:39am | By Heather Clancy

Stretchy, flexible electronics can be attached directly onto catheters, delivering real-time information for surgeons to diagnose and treat tissue damage at the same time.

4 | March 7, 2011 4:41pm | By Janet Fang

The LED tech was used for growing plants on the International Space Station... but NASA scientists are finding a new use for it in the medical field.

1 | March 7, 2011 3:40pm | By Boonsri Dickinson

In 2010, the telecommunications giant saved $44 million through almost 4,200 different projects focused on cutting power consumption.

1 | March 7, 2011 4:30am | By Heather Clancy

Is a lithium-water battery a glimmer of hope for the clean tech applications?

4 | March 3, 2011 4:07pm | By Boonsri Dickinson