Green Options » light

British Cops Unable to Use Blue Lights on New Electric Car

Andrew Williams — Mon, 02 Nov 2009 09:51:56 +0000

Cops based near Oxford in the UK have revealed that they are unable to to use flashing blue lights on their new electric car - in case it drains too much power from the battery.

The Thames Valley police force is testing out the £20,000 ($33,000) Mitsubishi iMiev in an effort to improve its environmental credentials. Apart from this quite obvious setback, they have been pleased with the silent, emission-free car, capable of travelling 100 miles on a single charge (with the lights off).

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Israeli Company Atlantium Develops Pathogen Water Purification System Without Chemicals

Amiel Blajchman — Sat, 01 Aug 2009 15:25:41 +0000

Have you noticed how all sorts of high end resorts and hotels have started converting their chlorine pools to salt water? And it’s not just the health and hospitality industry that wants to figure out a way to purify their water without resorting to chemicals. Other industries, including the food and beverage, dairy, aquaculture and municipal drinking water providers need to ensure that the water they use contain no micro-organisms or pathogens of any kind. A company based in Israel, Atlantium has developed what may be one of the first industrial-grade solutions to water micro-organism purification without chemicals.

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Never Mind the New York Times - Buy a Compact Fluorescent Lightbulb

Tina Casey — Tue, 07 Apr 2009 23:50:54 +0000

An article in the March 28 New York Times contained some pretty unflattering remarks about compact fluorescent light bulbs. Since the bulbs were never given a chance to speak in their own defense, I guess it’s up to us fluorescent bulb-huggers to speak for them. So, here goes.

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“Poop Humour” Counterproductive to Biogas Technology

Dave Harcourt — Sun, 08 Feb 2009 11:41:48 +0000

The biogas process, which produces fuel from animal and human waste, is prompting many supposedly amusing posts that could have a negative effect. Googling “biogas and poop” gives 12 800 hits including The Power of Poop, California Cow Poop Power and Turning Cow Poop into Car Power. This is counter productive as it distracts from the potential that biogas holds for both developing and developed countries.

Besides the comical slant of the titles, it is surprising that biogas is often presented as something amazing & unknown although it has been around for hundreds of years, is used in tens of millions of rural household and is a significant contributor to Europe’s renewable energy production.

Biogas - Amazing Natural Technology

The fermentation of organic material such as biomass, manure, sewage, farm waste, municipal waste, green waste and energy crops in the absence of air produces biogas. The same anaerobic fermentation produces swamp, marsh and landfill methane.

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New $3 LED Bulb Lasts 60 Years

Ariel Schwartz — Thu, 29 Jan 2009 19:29:36 +0000

The battle between CFL and LED bulbs may finally be over thanks to researchers at Cambridge University who have developed a $3 LED bulb that lasts for 60 years. The bulb, which is smaller than a penny, is 12 times more efficient than tungsten bulbs and three times more efficient than fluorescent bulbs.

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Researchers Develop Super-Efficient LED Light

Ariel Schwartz — Mon, 12 Jan 2009 23:23:24 +0000

LED light bulbs are already more efficient than your average bulb, but researchers at the Renssalaer Polytechnic Institute have developed a new kind of LED that exhibits both improved energy efficiency and lighting performance. The researchers‘ polarization-matching LED shows an 18 percent increase in light output and a 22 percent increase in wall plug efficiency (the amount of electricity that the LED converts into light).

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Study Proves Light Pollution Can Kill Animals

Andrew Williams — Thu, 08 Jan 2009 19:03:49 +0000

A groundbreaking study has proved that man-made light sources can change natural light cycles, triggering abnormal animal behavior that often leads to injury and even death.

The study, published in the journal Frontiers in Ecology and the Environment, confirms that polarized light pollution can cause confusion in creatures that rely on light ‘cues’ to navigate through their environment, with many animals also thrown off course by light reflecting from buildings.

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Ultracapacitator Flashlight Charges in 90 Seconds, Doesn’t Use Batteries

Ariel Schwartz — Tue, 11 Nov 2008 00:00:19 +0000

I’m always on the lookout for dependable flashlights, so the upcoming release of 5.11 Tactical’s Light for Life has really piqued my interest. Instead of batteries, the flashlight uses an ultracapacitator to hold its charge.

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Look into the Light: the CFL

Simran Sethi — Sun, 20 Jul 2008 17:05:30 +0000

If you ask Simran about compact florescent light bulbs, she may crack one open and cut you. Not really, that would scatter mercury, but she is loca for the light bulbs. Check Monday’s Huffington Post for the full version of this post.

People give you this whole rap about how easy saving the planet is. Change a light bulb and save the world. Yes and no. How about we consider it a start rather than an end destination?

Lighting accounts for about 20% of our electric bills. Traditional bulbs burn heat rather than light, so are extremely inefficient. Compact florescent light bulbs (CFLs) are 80% more efficient and can last up to 10 times longer than a traditional bulb. Last December, Congress voted to phase out the inefficient incandescent. By 2012, the 100-watt bulb will be history.

In the interim, environmentally-minded folks of all ilks are heralding the bulb. The virtual Stop Global Warming march reminds us swapping out three incandescent bulbs for CFLs will save us 300 lbs. of carbon dioxide and $60 a year. The Coalition On the Environment and Jewish Life suggests installing CFLs for Hanukkah as a way to redefine “energy-stretching light” and reflect environmental stewardship. Students in Pennsylvania sell light bulbs instead of candy to raise money for their schools. (Simran prefers candy.)

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Environmental Defense Fund: Easy Recycling of Compact Fluorescent Light Bulbs

edfblog — Thu, 03 Jul 2008 22:20:56 +0000

Compact fluorescent light bulbs (CFLs) use 75 percent less electricity than incandescent light bulbs for the same amount of light. (For why, see Bill’s post “Why Switch to Compact Fluorescents“.) But some people fear CFLs because of the tiny amount of mercury they contain. The risk from a broken CFL is extremely small, but CFLs should be disposed of properly so landfills aren’t polluted. Sealing used bulbs in plastic bags before placing them in the trash can slow the release of mercury if the bulb breaks. But recycling is ideal.

The problem, until now, has been that recycling CFLs was inconvenient for post people. That’s about to change, thanks to Home Depot. The New York Times reported this week that Home Depot will offer CFL recycling at all of its nearly 2000 U.S. stores. That puts 75 percent of Americans within 10 miles of a CFL recycling location.

If you’re not part of that 75 percent, you still have options. Ikea stores provide CFL recycling bins, as well. Or visit Earth 911 or Lamp Recycle to look for a recycling location near you.

Need help choosing the right CFL? Visit our online guide, “How to Pick a Better Bulb“.

Korea Shines for Compact Fluorescent Use

Gavin Hudson — Wed, 09 Jan 2008 19:06:34 +0000

At night, South Korea is literally aglow. When the sun goes down you’ll find a vibrant night life of kareoke (”norebang”), street markets, and sujo bars. Still, per person, Koreans use only a little over half the energy used in the United States. How do they manage to light up the night–every night–and still save energy?

Part of the answer might be South Korea’s high usage of compact fluorescent light bulbs (CFLs).

It took me almost two months of living in Korea before I saw my first incandescent (”old fashioned”) light bulb. All of the others were energy efficient CFLs, like the one pictured here at this outdoor market.

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LED tea lights!

serenity_ii — Tue, 02 Oct 2007 19:48:34 +0000

Found these LED tea lights, and they’re awesome, and it’s a good deal!

http://www.cudge.net/candles_detail10.htm

No more using up lots of wax tea lights, no more blown-out flames, no more burning risks, hopefully no more toxins!

Tip o’ the Day: A Bright Idea

Rebecca Carter — Thu, 01 Feb 2007 13:43:15 +0000

Have you heard this one before? "A light bulb walks into a bar…" Wait, that's not right. Let's try it again, "What's bright and light and white all over?" Okay, we're not the best joke tellers in the world, but we do know the punchline: CFL.

Switching over to compact fluorescent light bulbs (CFLs) is one of those solutions that is so simple and so effective, we all just need to do it. Says EnergyStar.gov, if we all change just one incandescent bulb to a CFL, "we would save enough energy to light more than 2.5 million homes for a year and prevent greenhouse gases equivalent to the emissions of nearly 800,000 cars."

Sometimes there is a solution so simple, that we've just got to do it. Yes, CFL bulbs cost a little more, but they also last much longer and use a quarter of the energy. This means that you will save money on your electricity bill - around $30/year per bulb.

If you haven't made the switch yet, use today as your opportunity to do so. Some hints:

Since CFLs last so long, they are great for hard to reach places. Imagine not having to change the bulb for 5 years!
CFLs don't generate heat like incandescents do, so they won't make you cool the room any more than is absolutely necessary.
CFLs do take a minute to warm up, so they are not as useful in closets or areas that a light is usually on for just a few seconds.
You'll receive the biggest impact on your energy bill by replacing the lights you use the most often and for the longest period of time.

Rebecca says: I never wanted to switch because I remembered the CFLs from years ago in my grandparent's house. It felt like a fluorescent bulb with a very cold tone to the color of the light. Now, it is almost impossible to tell the difference. Plus, when else can you have the light on and think, "I'm saving energy right now?"

CFL Resources:

EnergyStar.gov

Wikipedia: CFL