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Light-emitting diodes

This new ceiling lamp from Stack Lighting is on a growing list of household products that are "smart," but also green. It uses sensors to adjust itself based on ambient lighting in a room, and switch itself off if there's no one there. The company says th

Here comes an energy efficiency revolution

Technology

Energy-saving, environmentally friendly devices are starting to work their way into the consumer market, and many were on display at this year’s Consumer Electronics Shows. But to make sure they sell, their manufacturers are leaving the efficiency out of their sales pitches.

A life-size cardboard cutout photo of Japanese scientist Hiroshi Amano, a professor at Nagoya University, is surrounded by his laboratory staff members as they raise hands and shout "Banzai", or "Cheers."

The blue LED just won the Nobel Prize, but we’ve been reaping its benefits for years

Science

Shedding light on the light bulbs debate

Environment

New energy standards for light bulbs

Environment

Light Up the World

The World

Revolutionary Lighting

Lighting accounts for 20 percent of all electricity use in the US, but a great deal of the energy used to produce that light is wasted as heat. Living on Earth’s Cynthia Graber reports on light-emitting diodes, a new energy-efficient technology that experts predict may take over the lighting industry.

Light Up the World

Dave Irvine-Halliday recently won an international award for using light-emitting diodes to bring light to homes throughout the developing world. He speaks with host Steve Curwood about his efforts.

The World

Revolutionary Lighting

Lighting accounts for 20 percent of all electricity use in the US, but a great deal of the energy used to produce that light is wasted as heat. Living on Earth’s Cynthia Graber reports on light-emitting diodes, a new energy-efficient technology that experts predict may take over the lighting industry.