13 May 2010:
Market for LED Bulbs
To Boom in the Next Decade, Study Says
The market for light-emitting diodes (LEDs) should grow dramatically over the next decade
, passing compact flourescent lightbulbs as the biggest emerging lighting product, according to a new report. LEDs — a light source made from semiconductors — will account for 46 percent of the $4.6 million commercial and industrial lighting market by 2020, says the report
by Colorado-based Pike Research. LEDs currently make up about 2 percent of the market. A shift toward LEDs among commercial customers and municipalities, rather than homeowners, will drive this transformation, the report says, since businesses will be more likely to invest money upfront if they benefit from long-term cost-efficiencies. LED lights burn for 50,000 hours, and are twice as energy efficient as fluorescent bulbs and up to six times more efficient than incandescent bulbs. “As energy efficiency becomes increasingly important... governments and organizations have looked to lighting as the ‘low hanging fruit,’” the report says. The biggest obstacle for LEDs is cost: Bulbs currently cost $50 to $100, compared to $2 to $10 for flourescents. But long-term efficiency will make the investment worthwhile, the study says.
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Tribal people and ranchers join together to stop a project that would haul coal across their Montana land. Watch the video.
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An aerial view of why Europe’s per capita carbon emissions are less than 50 percent of those in the U.S. View the photos.
The 2015 Yale e360 Video Contest winner documents a Northeastern town's bitter battle over a wind farm. Watch the video.
video series looks at the staggering amount of food wasted in the U.S. – a problem with major human and environmental costs. Watch the video.
video goes onto the front lines with Colorado firefighters confronting deadly blazes fueled by a hotter, drier climate. Watch the video.
A three-part series Tainted Harvest
looks at the soil pollution crisis in China, the threat it poses to the food supply, and the complexity of any cleanup. Read the series.