Provocations

Compact fluorescents vs incandescent light bulbs - an update

This is an update on a post from 2007. I think most of what I wrote and reproduced on the blog still stands. But apparently the Canadian Government doesn't think so. It has removed all the information I copied from their web site (available below). Pretty much all you find now is information extolling the virtues of compact fluorescents. Yet, still no comprehensive plan to dispose of damaged and expired CFLs (they contain toxic amounts of mercury).

A few updates and additions, courtesy of Wikipedia:

1. CFLs produce less light later in their lives than when they are new.
2. The current price of CFLs reflects the manufacturing of nearly all CFLs in China, where labour costs less.
3. Because of delays when used outside in cold weather, CFLs are not suitable for motion-activated lighting.
4. If individuals are exposed to the light produced by some single-envelope compact fluorescent lamps for long periods of time at distances of less than 20 cm, it could lead to ultraviolet exposures approaching the current workplace limit set to protect workers from skin and retinal damage.
5. In the past decade, hundreds of Chinese factory workers who manufacture CFLs for export to first world countries were being poisoned and hospitalized because of mercury exposure.
6. In some places, such as Quebec and British Columbia, central heating for homes is provided by the burning of natural gas, whereas electricity is primarily provided by hydroelectric or nuclear power. In such areas, heat generated by conventional electric light bulbs significantly reduces the release of greenhouse gases from the natural gas. Ivanco, Karney, and Waher estimate that "If all homes in Quebec were required to switch from (incandescent) bulbs to CFLs, there would be an increase of almost 220,000 tonnes in CO₂ emissions in the province, equivalent to the annual emissions from more than 40,000 automobiles."

Buy incandescents while you still can. The price is already going up as demand is exceeding supply.  Despite resolutions and requests from many representative bodies, many governments seem determined to go ahead with a ban on incandescent bulbs.

A Canadian government that claims to believe in minimal interference in our lives is telling us how we can light our homes.

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HERE'S WHAT I POSTED IN 2007:

I'm up there when it comes to minimizing energy use but remain leery about the much-touted compact fluorescent. Interestingly, it took a fair bit of online research to find out the difference in colour spectra of the two. In the end, it was a Government of Canada web page that told me that the old incandescents continue to provide more accurate colour rendition.

The Colour Rendering Index (CRI) of a lamp reflects how accurately the colour of an object can be determined under a given light source. Compact fluorescent lamps have a CRI of 82 (out of 100), which is considered excellent for fluorescent sources and good for artificial light in general. Incandescent lamps have a CRI of 97. Incandescent lamps provide excellent colour rendering because of the full spectrum of colour wavelengths present in the light they produce.

and that compact fluorescents, are affected by temperature, getting less efficient as the temperature moves above or below 25°C

Low temperatures pose the greatest problems for CF lamps. Not all compact fluorescent systems are equally susceptible to low-temperature problems, but in general, as temperature drops, so does light output and efficacy. At very low temperatures (below 32°F or 0°C), lamp output can decline to one-third the rated value or less. It is important to note that some CF lamps will have to warm up a while before producing sufficient light under cold conditions, some may take several minutes to ignite, and some won't start at all.

High ambient temperatures can be produced around enclosed CF lamps in interior lighting applications. In addition, less-efficient ballasts will introduce more heat into fixture enclosures. The IES Lighting Handbook points out that a 1% loss in light output (for fluorescent lamps in general) can be expected for every 2°F (1.1°C) above the optimum ambient temperature of 76°F (25°C). Efficiency can also drop, to some degree, at these higher temperatures. Ventilated fixtures for CF lamps remove excess heat from the enclosure.

. . . and that compact fluorescents deteriorate quicker with increased frequency of on-off switching.

While incandescent lamps do not suffer any reduction in service life from switching, fluorescent lamps do to a small extent. Consequently, the costs of shortened lamp life should not be overlooked when considering CF lamps in applications requiring frequent switching.

Recycling of ballasts is another issue. Is this the old nuclear energy argument in a nutshell: great energy but serious pollution/disposal problems?

So, while I want them to succeed, I'm being very conservative in switching, presently having only two: one in our crawl-space and one providing supplementary lighting for some indoor plants.

UPDATES:

• UV light fear over 'green' bulbs
• Low-energy bulb disposal warning
• Low-energy bulbs 'worsen rashes'
• Low-energy bulbs 'cause migraine'

Working with beneficial weeds

Using his young food forest as an example, Michael Pilarski shows some of the many riches that can be generated by working with the plant kingdom.

The bottom of the oil barrel is covered in tarsand

Investments and vested interests can cloud vision. Maybe there's enough in this video to break through a few hardened hearts, hardened to the state of our planet and its people.

I think I'd have more respect for someone who said, I know it may be hurting our planet and its people but I still think it's the best thing to do. Instead most support for the tar-sands seems to rely on smoke and mirrors. Meanwhile, true to the pattern of addiction (money, oil . . . ), it is the addiction that drives. And, of course, the whole family suffers; in this case, the human family, starting with the most vulnerable:

Soils and Souls: The Promise of the Land - The Texas Observer

Soils and Souls: The Promise of the Land - The Texas Observer.

I was on organic market gardener for three years and, for the past ten, have been managing an organic farming web site for the Certified Organic associations of British Columbia.

These days virtually all our systems are in crisis. This article is about a conference on agriculture - a system that "people in the street" can relate to: organic and, perhaps more so, local food has caught the public imagination and certainly gone beyond the fad phase. As my martial arts instructor loved to say: "Everything is connected to everything else" so I would say, choose your system, keep exploring and you will understand the state of our planet and its people. I think that, for many of us, farming / food / growing things is good place to start. For starters, it's relatively jargon-free and literally down to earth.

This article is a simple example - and the conference itself no doubt went further.

Gov't scientist admits he misled public about oil sands :: The Hook

Gov't scientist admits he misled public about oil sands :: The Hook.

A senior Alberta government scientist has apologized for attempting to discredit the authors of a report that raised “urgent” concerns about oil sands pollution.

BC's Natural Beauty is being butchered - one watershed at a time

One example among many. I could rant but I'll let the video speak for itself:

Voices of Bute Inlet from jeremy williams on Vimeo.

Motivations in Copenhagen Climate Change talks

Take three minutes to listen to some simple thoughts on the Copenhagen talks from Naomi Klein.

Why Canada's international image lies in tatters

"I think climate change is doing to Canada's international image what whaling has done to Japan's."

Canada's getting growing criticism for its retarded attitude towards handling climate change. News reports only add confusion with their sound bytes. Here's a brief, direct and (I think) informed outline of why Canada is seen as an obstacle to action:

Greater long-run savings and humanity in small, de-centralized businesses.

Quote for the month:

How can individuals assist the transition? Support the small, local alternative, even if it entails inconvenience. And often it will. The big, mainstream standbys (big banks, chain stores etc.) are often subsidized in hidden ways to make them more convenient, and to make them seem to the individual consumer to be more economical. According to dominant theory, bigness implies an "economy of scale" through mass production and bulk purchasing. But the real costs of added transportation resulting from centralized production and control (including extra pollution and its cascading environmental effects) are rarely factored into the accounting. Also we must learn always to question the ideology of efficiency, since many human needs and interests are only degraded by its ruthless, myopic calculus (should one, after all, strive to be an "efficient" parent, giving a minimum of love for a maximum of obedience?).

 - Richard Heinberg

Indigenous movement takes on government to protect Amazon Basin from oil exploitation

So much of significance is happening in the Amazon basin, especially regarding the indigenous people as well as mining operations - and often the clash between the two. Here's a review of the current situation and recent events that will give you a context to seek out details yourself.

Documentary film: Justicia Now! tells the story of 30,000 rainforest-dwelling Ecuadoreans who organized to bring the largest environmental class-action lawsuit in history against Chevron/Texaco for oil contamination of their territory.