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Environmental concerns...

What i'd like to know is how many of us on this forum who are genuinely concerned about the environment own stocks in companies who directly or indirectly add to the growing problem of greenhouse emissions i.e mining companies, petroleum companies and other related heavy polluting industrials in search of a quick buck. None of us including myself I could be wrong though, I have tried to invest in companies for the long term that will decrease carbon emissions i.e EDE, EVM. hopefully my portfolio will cancel each other out and i will contribute 0% Greenhouse emissions on my Trades.
 
Even Westpac advertising "we signed up not to be associated with sponsoring greenhouse emissions".
dont get me wrong - i reckon westpac are great and I'm pleased to see the message starting to bite - even at the level of the everyday advertising jingoism.
 
I do. But I don't invest in mining companies that are drawing most of their income from Africa for instance, or mining companies with a bad track record (BHP being a company I can never invest in, because of environmental reasons). In general, mining companies in Australia have exceptionally high standards for pollution control and environmental rehabilitation.

But I have arguments with a lot of greenies on my own side, about mining. "Close down the mines" they say, (incredibly shortened but you get the gist). And I respond, "What material do you think those poles are, that are holding up that wind turbine?" Solar panels for instance, take up massive amounts of silver. If the world does look at using a lot of solar, look seriously at getting some silver.

Oil stocks? I'm not bothered. The sooner we use it, the sooner and faster we have to look for alternatives. Hydrogen fuel cells at the moment, are filled with bi-products from the oil refining process. We still need oil for packaging, plastics etc, that we can't replace yet. Petrochems are used for pharmaceuticals as well, paints etc.. We are still going to need oil long after we use it for powering vehicles.

But yes, I do hold some eco-friendly stocks for the long term. And I do drop stocks for environmental reasons. I don't think I will be buying ZFX in a hurry because of this.

Unfortunately, there does seem to be a lack of viable environmental companies listed. Would like to see some be able to turn a profit in the medium term. And I'm not sure if there will be any point holding enviro stocks if the Libs win at the end of this year unfortunately.

And 20/20... Lol! BHP is listed on that index and rated highly. Makes me laugh. Wouldn't take any notice. I know John Hewson had a listing at one stage... for Australian companies, ranking them on their performance with the triple bottom line. I'll see if I can dig that one out. Was much better.
 
I have travelled many a road and stopped in many a town in W.A.> that would not exist or be accessable without the financial handouts and close proximity to producing mines. 'Beenup> for its rugged coastline,dunes and treed areas', 'Whaleback TP, Parra, Goldsworthy> for the gorges, sparceness etc etc'.

West Australia is a vast and largely uninhabitable state and it is a simple fact that our government has zilch resources to sheet roads to these areas. Mining Companies do!!!!!......and what a bonus for that .

Mining ore or is a relatively clean process. Blast it...dig it....crush it.....process it......and ship it off. Most of the value add processing is by slurry benificiation and cyclonic screened, no caustic soloutions whatsoever.

The bulk of ore out of this state has come from primarily two hills and a handful of other minor localities. If youve been up North, thiers ****loads of identical hills and the whole landscape looks the same.

The impact environmentally is negligable and if it wasn't for the accesability mining has enabled for the 'Greenies', they would be none the wiser and still eating mongbean soup at home in the city .

So while our commodities are sought after by developing nations, I reckon dig em up and flog them off, before their obsolete and everythings made out of composite materials and urethanes.
 
And I could never ever even remotely consider buying Woodside for the illegal action they are indulging upon on the Burrup. Up there with James Hardie for the least ethical organisation in Australia. I really question how people sleep at night after doing such damage there.

I wish evil things upon Woodside. I have no sympathy for them.
 
Salt's one thing. Shrinking clay under the foundations is another and both are bad news.

As for recycling versus dams, both are simply another source of bulk supply from an engineering perspective so it doesn't really matter. My point is that we do have options, dams being just one of them, and we need to get on and develop those options rather than constantly applying restrictions.

That said, getting rid of bottled water would be an environmental bonus in itself and this may, on emotional grounds for the people drinking it, swing the balance away from recycling at least as far as putting that recycled water back into the main supply is concerned. The last thing the environment needs is everyone refusing to drink from the tap because they refuse to drink recycled sewage. That doesn't prevent us from using recycled water in industry etc however.
 
http://www.abc.net.au/7.30/content/2007/s1843524.htm
for the record and/or future reference, here's a transcript of "Turnbull, Garrett debate climate change, Reporter: Kerry O'Brien". good stuff. Here's a very brief excerpt.
etc etc
 
2020hindsight said:
http://www.abc.net.au/7.30/content/2007/s1843524.htm
for the record and/or future reference, here's a transcript of "Turnbull, Garrett debate climate change, Reporter: Kerry O'Brien". good stuff. Here's a very brief excerpt.

etc etc
Oh great, Labor are worried about the effects on tourism. Never mind that tourism is one of the causes of fossil fuel use / greenhouse emissions in the first place.

What next? We're worried about warmer weather cutting demand for coal?
 
What next? We're worried about warmer weather cutting demand for coal?
It happened just recently in the US i think, they had warmer than expected winter reducing demand for petroleum and price of oil went down, Then they got that cold snap and know prices rising again cause demand went back up. CRAZY S#$T . We gotta kick The OIL habit. Reminds me of a few years back when GM in the U.S Brought out an electric car The EV1 from memory, It was a low maintence full electric car. 0-60 miles an hour in 7.4 scs top speed of 140 miles an hour with a range of 120 Miles then plug it in and off you go, Brilliant, You could only lease them though then they scrapped the whole idea I mean literally scrapped the idea They rounded up all the cars took them To the US equivalent of SIMS metal and shredded every last one of them. And what car replaced this car you ASK,Yes thats right the Gas guzzling HUMMER . GEE i wonder who or what factor influenced them to change their minds on the EV1 all electric car The mighty OIL dollar
Every one should check out the DVD "Who Killed The Electric Car" Brilliant
 
All This rain were getting and wheres it going? Staright down the gurgler straight to sydney harbour you think if the polies were really concerned about water issues theyd find a way to divert all this useful water in an underground reservoir.
maybe they could close off the useless tunnel they built under sydney and use it to collect all this much needed water.
 
Smurf1976 said:
Oh great, Labor are worried about the effects on tourism. Never mind that tourism is one of the causes of fossil fuel use / greenhouse emissions in the first place.
Garrett doesn't go into detail here, but...
Maybe it's related to this maybe not, but I did hear that some of the C-change in the Federal Govt's thinking might have followed someone pointing out that there's a fair chance that the Great Barrier Reef will die in about 20 years. Until then, they had the attitude - "too bad if the glaciers melt, what's a glacier anyway?"

But I hear you, and as usual you are pioneering off way ahead of the govt - but imho, no one is going to back anyone who proposes cutting back on tourism. Here's another excerpt where Turnbull taunts Garrett about "green" being "anti-progress". Garrett changes the emphasis to " progress now involves new thinking, new energy sources , preferably under Kyoto arrangements etc"
 
for polar bears or coral, creatures feathered, fur or fin,
some solar flaring horror now awaits for mankind’s sin;
and for man some thorny laurel, and some sordid victory cold....
that we take the blame immoral “for Earth's death, we're paid in gold”
 

All of the sudden all dimmers will be modern age dinosaurs
 
From a technical perspective there are serious problems with this lightbulb idea.

There is no "drop in" replacement for use in fridges, ovens, sensor lights or touch lamps.

Nor does it make environmental sense to install CFL's ("energy saving" globes) in toilets, pantrys or anywhere else where they will be used for short periods at a time. The seriously reduced life span (in terms of hours of light) under these conditions combined with their mercury content and overall higher energy use in manufacture will more than offset any benefit from lower electricity use.

So I wouldn't be banning light bulbs. Banning the sale of any type of decorative fixture or halogen downlight would be far more sensible IMO. That would enable continuing maintenance of existing lighting and use of incandescent bulbs where they are appropriate but would over time get them along with their energy guzzling halogen cousins out of the lounge rooms, shop counters and other applications where they are used for long periods each day.

This is a classic case of being seen to be doing something without actually achieving too much. Ban the 0.06KW bulb whilst we fill the streets with 200KW SUV's. Hmm...
 
It is like flow restrictor for every water tap.

Say you need 2 litres of water for your kettle, it just takes longer to fill up the kettle, you still need 2 litres.
 
If this is Howards response to climate change... it can only mean one thing...

He doesn't believe its real!
 
A bit technical and O/T but relevant to the issue of banning light bulbs, here's a comparisson of the efficiency of various light sources. The figures are lumens (of light) per Watt (of electricity) and are typica maximum values. Efficiency will be lower for smaller size bulbs or tubes - a 100 W bulb produces more light than 3 40 Watt bulbs, for example and it's a similar situation with fluorescent tubes and other light sources.

As you can see, the humble bulb really is bottom of the heap in terms of efficiency and that's the reason for them attracting attention as an energy guzzler. But they do still have legitimate applications.

Incandescent (ordinary bulbs) - 22 lumens per Watt maximum. It's about 13 lumens per Watt for a 100 W bulb, less for the smaller ones and more for the bigger ones. They last about 1000 hours. The long life version is considerably less efficient (used in traffic signals, for example, where reliability is more important than efficiency - these usually last about 8000 hours).

Halogen - 27 lumens per Watt. This excludes the transformer losses for those small 50 W halogens commonly used in houses. These losses bring the efficiency down to a level comparable to that of an ordinary incandescent bulb. They last about 2000 hours in normal domestic situations.

Mercury vapour self ballasted - 28 lumens per Watt. These produce white light (not yellow or blue tinted) and are a direct replacement for incandescent bulbs. They are used in small scale industrial applications, warehouses etc to get more and better quality light than the incandescents they directly replace. They have a rated life of 5000 hours.

High pressure mercury - 63 lumens per Watt. Commonly used in street lighting (the white ones not the orange lights), factories, sports grounds, warehouses etc. In the past they were quite common in shopping centres etc too although they are less common in that use these days. They typically last about 12,000 hours - hence their attraction for commercial use and individual bulbs offer very high light outputs so fewer are needed (another cost saving). They're not really useful at home however and they take some time to warm up.

Compact fluorescent - typically around 60 lumens per Watt although it does vary and can go as high as 80 lumens per Watt. These are available in various "colour temperatures" which approximate either the light of an incandescent bulb (warm white - 3000K), a white office type fluoro (white - 4000K) or natural daylight (daylight -6000K, these are the ones that appear blue and many people dislike for that reason). They last 4000 - 8,000 hours depending on quality and use. They are a direct replacement for incandescent bulbs and are what the government will be expecting most people to use.

Metal halide - 94 lumens per Watt. Another industrial lamp although they are increasingly used in streetlighting, office buildings, shopping centres etc. They are available in a range of colour temperatures similar to the compact fluorescents. An important point is that unlike fluoros they don't contain toxic mercury. They last about 6000 hours.

Fluorescent tube - up to 104 lumens per Watt including the ballast losses for common tube types. Some with even higher efficiencies are available but the common domestic type is around 84 lumens per Watt. Contrary to popular belief, they ARE available to match the light of an incandescent - you don't have to have that harsh white light if you get Warm White (3000 K) tubes. Other colour temperatures are the same as for compact fluoros. Modern tubes last about 10,000 - 13,000 hours although they go up to 20,000 hours with electronic ballasts (which also totally eliminate visible flicker). You can get electronic starters for existing flourescent lights which stop them flickering when turned on and will automatically shut down a failed tube (takes a minute or so) rather than leaving it flashing on and off.

High pressure sodium - 125 lumens per Watt. These are the soft orange colour street lights and they aren't too much use for anything apart from streetlighting or industrial applications. But their high efficiency, high output per bulb and 12,000 hour life is a big attraction in those uses. They are sometimes used on amateur sports fields, warehouses etc too. A good point is their lack of toxic mercury.

Low pressure sodium - 200 lumens per Watt. They produce a harsh orange light which limits their use to security and street lighting (though they are acceptable in factories and warehouses (and especially power stations) if mixed 50/50 with mercury vapour lamps to improve the colour). They last 10,000 - 20,000 hours. No mercury in these either.

So now you know why offices have flouro tubes and the street lights are orange. They're using the most efficient light source that produces an acceptable colour of light for the application. As I said, you CAN get very good light quality from fluoro tubes. Just get the right tubes...

Try Bunnings and look for "warm white" tubes if you want light that matches and incandescent bulb remembering that an 18 Watt tube is as bright as a 100 W bulb. So 2 x 36 W in the kitchen is always going to be bright (as would the equivalent amount of incandescent light - 5 x 100 W bulbs) although the right tubes will get rid of the harsh light quality - just take one tube out or get a smaller fitting if it's too bright for you (2 x 18 W fluoros generally won't work with only one tube but it's safe to try it. 2 x 36 W should work fine with only one tube).
 
First of all I would like to thank you Smurf1976 for comprehensive explanation.

This type of post takes time to compile and poster should be congratulated for making such an effort to provide so much information.

I would like to use your generosity Smurf and ask for some info on LED’s?

LED’s seem to make some appearances, and from what I know all the colours except white are very easy to obtain.

Claims are that diodes last 200,000 hours if I got it right, but they are more of the spotlight and currently lack of intensity of light and are prohibitively expensive.
I came past one for close to $40.

I also heard that there is one more type of incandescent globe replacement in a pipeline, but I don’t remember the name, maybe it is one of yours from the list.

I wander what is the LED’s efficiency in lumens per watt?
 
Smurf,

Agree with Happy, very interesting. Thanks for the effort.
 
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