Carbon Conservation & Energy Efficiency

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Bruce Rowse & Team

Archive for the ‘Climate change’ Category

The importance of correct commissioning in Buildings

Monday, April 19th, 2010

Commissioning is a quality-assurance process designed to increase the likelihood that a newly constructed building will meet client expectations. Commissioning stretches over the entire design and construction process. It should ideally begin at the design phase, with selection of a commissioning provider who helps ensure that the building owners and designers’ intent is written into the project documentation.

The design and construction of ‘green’ buildings pose problems similar to those found in conventional building design. This compromises the intent of the design to achieve a high level of energy efficiency in its function. A good sustainable design will include systems that are “right-sized” (rather than the typically oversized mechanical systems) for the building. Over sizing equipment has become a standard design practice, because—due to design, installation, and/or operation errors, systems rarely function at their intended capacity. These errors occur because of the fragmentation between design, construction and operation, resulting from a general lack of a systems approach in the building process. Commissioning can facilitate improved integration and communication between these phases and can also ensure that right-sized systems function as intended and as specified.

If a building is not properly commissioned, it will not perform according to its design intent and will therefore have a poor energy rating. A common reason for inadequate commissioning is the tendency for projects to go over time and budget and for the contractors to drastically pull back on resources to get started on new projects. For this reason, it is widely recognised that engagement in independent commissioning is best practice, as it is carried out objectively without any conflict of interest.

The cutting of costs and resources at the initial commissioning stage will end up costing the facility more money in the long run, as extensive maintenance issues will ensue. Also, the cost of retrofitting is always more financially intensive than implementation as part of the original build.

In conclusion, it is recommended to allow sufficient investment capital to employ independent commissioning at the construction stage, as it will save countless amounts of energy, money and time overall.

Research on Behaviour, Ethics and Climate Change

Wednesday, April 7th, 2010

This is an article “We Cannot Fight Climate With Consumerism” by George Monbiot from his ZSpace Page, Monday, November 09, 2009 http://www.zcommunications.org/we-cannot-fight-climate-with-consumerism-by-george-monbiot.

It outlines and gives examples of the ‘licensing effect’: Researchers have found that buying green can establish the moral credentials that license subsequent bad behaviour.

“How many times have you heard the argument that small green actions lead to bigger ones?”

“I’ve heard it hundreds of times: habits that might scarcely register in their own right are still useful because they encourage people to think of themselves as green, and therefore to move on to tougher actions.”

“A green energy expert once tried to convince me that even though rooftop micro wind turbines are useless or worse than useless in most situations, they’re still worth promoting because they encourage people to think about their emissions. It’s a bit like the argument used by anti-drugs campaigners: the soft stuff leads to the hard stuff.”

“I’ve never been convinced by this argument. In my experience, people use the soft stuff to justify their failure to engage with the hard stuff. Challenge someone about taking holiday flights six times a year and there’s a pretty good chance that they’ll say something along these lines:
I recycle everything and I re-use my plastic bags, so I’m really quite green.”

“A couple of years ago a friend showed me a cutting from a local newspaper: it reported that a couple had earned so many vouchers from recycling at Tesco that they were able to fly to the Caribbean for a holiday.”

“The greenhouse gases caused by these flights outweigh any likely savings from recycling hundreds or thousands of times over, but the small actions allow people to overlook the big ones and still believe that they are environmentally responsible.”

“Being a cynical old git, I have always been deeply suspicious of the grand claims made for consumer democracy: that we can change the world by changing our buying habits. There are several problems with this approach:

• In a consumer democracy, some people have more votes than others, and those with the most votes are the least inclined to change a system that has served them so well.

• A change in consumption habits is seldom effective unless it is backed up by government action. You can give up your car for a bicycle – and fair play to you – but unless the government is simultaneously reducing the available road space, the place you’ve vacated will just be taken by someone who drives a less efficient car than you would have driven (traffic expands to fill the available road-space). Our power comes from acting as citizens – demanding political change – not acting as consumers.

• We are very good at deceiving ourselves about our impacts. We remember the good things we do and forget the bad ones.”

“I’m not saying that you shouldn’t always try to purchase the product with the smallest impact: you should. Nor am I suggesting that all ethical consumption is useless. Fairtrade products make a real difference to the lives of the producers who sell them; properly verified goods – like wood certified by the Forest Stewardship Council or fish approved by the Marine Stewardship Council – are likely to cause much less damage than the alternatives. But these small decisions allow us to believe that our overall performance is better than it really is.”

“So I wasn’t surprised to see a report in Nature this week suggesting that buying green products can make you behave more selfishly than you would otherwise have done. Psychologists at the University of Toronto subjected students to a series of cunning experiments (pdf). First they were asked to buy a basket of products; selecting either green or conventional ones. Then they played a game in which they were asked to allocate money between themselves and someone else. The students who had bought green products shared less money than those who had bought only conventional goods.”

“The researchers call this the “licensing effect”. Buying green can establish the moral credentials that license subsequent bad behaviour: the rosier your view of yourself, the more likely you are to hoard your money and do down other people.”

“Then they took another bunch of students, gave them the same purchasing choices, then introduced them to a game in which they made money by describing a pattern of dots on a computer screen. If there were more dots on the right than the left they made more money. Afterwards they were asked to count the money they had earned out of an envelope.”

“The researchers found that buying green had such a strong licensing effect that people were likely to lie, cheat and steal: they had established such strong moral credentials in their own minds that these appeared to exonerate them from what they did next. Nature uses the term “moral offset”, which I think is a useful one.”

“So perhaps guilt is good after all. Campaigners are constantly told that guilt-tripping people is counterproductive: we have to make people feel better about themselves instead. These results suggest that this isn’t very likely to be true. They also offer some fascinating insights into the human condition. Maybe the cruel old Christian notion of original sin wasn’t such a bad idea after all.”

I disagree with the last sentence, and I feel that the research suggests striving for continual balance of “telling it like it is” in appropriate doses that won’t overwhelm and cause inaction, with giving hope when these new realistic actions are done.

Climate Change and Water Shortage

Monday, March 29th, 2010

Easing water restrictions in Victoria may have an undesirable impact on the fight against climate change. According to a recent article in The Age, “the sight of greener gardens and healthier trees that will regain our image as the ‘garden state’ will also turn people’s attention away from the bigger environmental picture – that is global warming”. The soon to be available extra water also means more greenhouse emissions and more climate change.

Some observers expressed that for many Australians climate change wasn’t a real issue until their backyards began to turn brown. Water restrictions for these people were the most visible and tangible manifestation of the drought and that there is something going on with our climate. Lifting water restrictions is sending the wrong message to the public and once again relegates concerns about global warming to the back of their minds. However, the extra water won’t be falling out of the sky either.

Unfortunately the lifting of water restrictions is not entirely due to the restoration of normal rainfall and increased dam levels (which may have appeared so during the deluges of the last few months) but due to the completed construction of the north-south pipeline and the controversial desalination plant near Wonthaggi. (Some cynics say it is also due to the upcoming state elections).

Ironically, to compensate for the reduced rainfall which is most likely a consequence of changed weather patterns, we are building a desalination plant that is extremely energy intensive and polluting. The annual energy use of the plant will be around 900 GWh. The pollution from this will equal to putting 365,000 cars on the road emitting around 1.2 million tonnes of CO2 (in terms of black balloons that’s around 30 billion of them). This is not including the ‘carbon footprint’ of the plant during construction, which equals to about 1.4 million tonnes of CO2. It is still not clear where the extra energy will come from but it was suggested that gas-fired power stations.

There are of course many other side effects of the desal plant that environmentalists highlighted, such as producing 30,000 tonnes of solid waste that include toxic chemicals and 200 million tonnes of brine that will be pumped back into the ocean each year. All of which will impact on marine life without knowing what the ultimate outcome will be.

Many people believe that we should be focusing on better ways to capture and store the remaining rainwater instead of constructing desalination plants that will significantly increase greenhouse emissions which in term contribute to the larger issue of climate change. Despite the reduced levels of rainfall it is still more than enough to cover our water usage if it is harnessed properly. Money would be better spent providing households with water tanks, which would have much less impact on climate change. Otherwise, we will have to deal with more than just shorter showers and not being allowed to water our gardens or wash our cars at home.

Walmart plans to save more carbon than Australia

Thursday, March 11th, 2010

American retailer Walmart has announced it will cut its supply chain emissions by 20 million tonnes by 2015.

If Walmart can do this why can’t the Australian government get our country to do the same?

My understanding is that if the government’s proposed CPRS goes ahead Australia’s emissions will be cut by around 20 million tonnes by 2015. The Australian government’s target is a 5% reduction by 2020.

According to the Environmental Leader, Walmart’s target “translates into 150 percent of the giant retailer’s estimated global carbon footprint growth over the next five years.”

On a percentage basis Walmart’s targets eclipse Australia’s by a massive amount.

Australia has over 1.2 million people employed by state governments. I’m not sure how many public servants are employed federally, on top of this number.

Walmart has around 1.9 million employees.

From a staffing perspective the number of people whom Walmart and the Australian government have “operational control” over are not that dissimilar in magnitude. Obviously as a retailer Walmart has a much bigger supply chain over which it has influene than the Australian government. So in this regard a direct comparison between Walmart and the Australian government is not really fair. But on the other hand the Australian government in theory can influence all Australians to reduce their carbon footprint, either through regulation or incentives.

What is striking about the Walmart announcement is the seriousness of their commitment. If all businesses were this serious about reducing their carbon footprint our government’s incapacity to cut Australia’s carbon emissions would be less of a worry.

If Walmart, an organisation famous for keeping costs low and operating leanly, can significant cut its emissions, can’t yours do the same? I need to be clear here, Walmart is a for-profit business. Its margins aren’t huge – in 2006 its profit margin was 3.2%. Yet it can clearly see that the environmental benefit of cutting its emissions is not a bad business decision. 

Most of Walmart’s savings are likely to come from energy efficiency. Energy efficiency provides a positive return on investment. It makes economic and business sense, as well as environmental sense.
If Walmart can commit to significantly cutting their emissions, can’t your organisation do the same? Our government can’t, but you can. Are all Australian’s with worries about climate change going to be shamed by a business from across the Pacific, or are we all going to step up personally and in our workplaces and get serious about reducing greenhouse gas pollution?

Interactive Map on Climate Change

Friday, January 15th, 2010

The link below goes to an interactive map of the world showing the impact in various places of a average global temperature rise of 4 degrees Celcius. For example some parts of Australia would experience a 6 degree rise, whist the oceans around Australia a 2 or 3 degree rise.

http://www.actoncopenhagen.decc.gov.uk/content/en/embeds/flash/4-degrees-large-map-final. Note the map doesn’t work in Internet Explorer 7 – it did work in Firefox for me.

The map was produced by the Met office in the UK, and is a good tool for identifying the predicted “hot spots” (a bad pun, I know) for forest fires, crops, water availability, sea level rise, marine, drought, permafrost, tropical cyclones and extreme temperature.