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  #1  
Old Mar 3rd 2011, 05:48 AM
Paul Grossman Paul Grossman is offline
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Default Towards a greener planet.

It seems that nearly every day we hear something about Global Warming. Australia's drought is now the worst in our history. Intense storms lashing parts of South East Queensland, frequent tropical storms worldwide, fierce bushfires, melting glaziers, flooding, the list goes on. With the ever increasing threat of global warming, we need to know how we can look after the planet. Electricity causes 35 per cent of Australia's greenhouse pollution which makes it the biggest single source of Australia's greenhouse pollution.


Climate change is caused by human activity; it is the warming of our planet. It's the worst environmental and economic problem we face today. Coal provides nearly 90 per cent of Australia's electricity and is also destroying the environment. Using coal also causes significant health problems. We must stop our use of coal powered electricity. Clean, renewable energy is the solution to climate change and to a better planet. Using a solar hot water qld system can somewhat provide a solution to your electricity needs.


Most of the energy in Australia is supplied by burning coal or petrol. Currently, 78 per cent of Australia's water is boiled by coal. Coal, is a fossil fuel and creates greenhouse emissions. A solar hot water qld system is an ideal way to make use of the sunís energy is a way to boil water without producing greenhouse emissions.


Our greenhouse gas pollution comes from burning coal and gas to make energy. Deforestation also releases large amounts of greenhouse gases into the atmosphere. After that, changes in our climate may become rapid, unpredictable and irreversible.
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Old Mar 4th 2011, 12:55 PM
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Default Re: Towards a greener planet.

Reducing energy use is a pretty fundamental necessity for the future, regardless of how we produce it.
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Old Mar 5th 2011, 12:34 PM
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Default Re: Towards a greener planet.

Moderator's Note: Although the OP violates the forum rules against commerical links, I can and do use my discretion if I consider the topic to be relevant and/or interesting to forum members. This is one of those rare cases.

This forum does not endorse any commercial enterprise. Caveat emptor.
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Old Mar 5th 2011, 12:43 PM
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Default Re: Towards a greener planet.

Quote:
Originally Posted by Donkey View Post
Reducing energy use is a pretty fundamental necessity for the future, regardless of how we produce it.
Yes, this concept seems to be too often overlooked in considerations of our looming energy problems.

Merely finding and developing less polluting and more sustainable sources of energy will not resolve the massive energy problems we are facing.

In terms of solar panels, which are sustainable and non-polluting in function, do contribute to pollution and use unsustainable energy in their manufacture.

It is also to be noted that while solar panels can be very useful in providing a non-polluting and sustainable source of energy, they cannot sufficiently replace fossil fuels at present levels of consumption.

That is to say, the chief problem we as a society have with energy is our massive and wasteful consumption of it. The fact that our present methods of generating energy are unsustainable and highly polluting, are merely additional problems. The key social problem is the massive and endless demand for more and more energy consumption for convenience and luxury.

Or to put this another way, all the solar panels in the world won't provide enough air-conditioning to cool this planet if the atmosphere continues to heat up. The problem is over consumption. Supply problems are a result of that over consumption.
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Old Mar 10th 2011, 08:06 PM
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Default Re: Towards a greener planet.

Here's an interesting article about a study of comparative energy usage and green policies.

Seems that good quality urban design has a greater impact on overall energy usage than green construction or green cars.

Quote:
Study: Transit outperforms green buildings

Transit-oriented development is the key to cutting energy consumption ó even more so than Energy Star construction or green cars, according to a peer-reviewed study supported by EPA.

The report, Location Efficiency and Housing TypeóBoiling it Down to BTUs, is summed up in the attached graph. The study examines the energy implications of the following scenerios:

1) Conventional suburban development (CSD) versus transit-oriented development (TOD)

2) Green building (Energy Star), versus conventional construction

3) Single-family versus multifamily residential units

4) Green versus conventional automobiles

No factor has a bigger impact than going from conventional suburban to transit-oriented design. Making that change alone results in a 50 percent reduction in energy use in multifamily buildings and 42 percent and 39 percent reductions in single family attached and detached dwellings. In fact, the most inefficient TOD beats the most efficient CSD in this study.
Source
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Old Mar 11th 2011, 01:11 AM
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Default Re: Towards a greener planet.

Both wouldn't hurt.
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Old Mar 11th 2011, 07:12 PM
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Default Re: Towards a greener planet.

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Both wouldn't hurt.
The point is that when concerned people actually address the topic of 'toward a greener planet' they seem to obsess over policies that are only of secondary efficiency.

The one 'green' policy that is most likely to deliver the maximum effect is rarely ever even on the table - even amongst proponents of 'green' policies. That just shows how deep the problem is and how far we are still away from even acknowledging the problem.
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Old Mar 11th 2011, 10:08 PM
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Default Re: Towards a greener planet.

Quote:
Originally Posted by Michael View Post
The point is that when concerned people actually address the topic of 'toward a greener planet' they seem to obsess over policies that are only of secondary efficiency.

The one 'green' policy that is most likely to deliver the maximum effect is rarely ever even on the table - even amongst proponents of 'green' policies. That just shows how deep the problem is and how far we are still away from even acknowledging the problem.
Slightly unrelated, but concerning environmental efficiency of technology, have you heard of the rebound effect? There was a lengthy article in NYT about it, and they even quoted some right-wing group about how efficiency mandates are problematic and, themselves suggested that a carbon tax would be more effective in reducing GHG emissions.
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Old Mar 18th 2011, 06:04 AM
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Default Re: Towards a greener planet.

What's a green car?
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Old Mar 18th 2011, 09:46 AM
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Default Re: Towards a greener planet.

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What's a green car?
A car that, by design, significantly lowers the impact of transportation on the environment (relative to traditional vehicles).
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