Archive for the 'Environment' Category

Stormwater dampens Frasers’ sustainable image

June 24th, 2010

Despite making numerous commitments to sustainability, Fraser’s have failed to control environmentally damaging stormwater runoff from their redevelopment of the Carlton United Breweries site on Broadway (see images).  Below is a media release on the matter that I sentstormwater-1-optimised.bmp out last week.  Many thanks to local sustainability expert Michael Mobbs for bringing this matter to my attention and for this article he recently published on the topic.  

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Greens Councillor Chris Harris wants the City of Sydney to issue a please explain to the Frasers Property Group after torrents of sediment laden storm water were seen leaving their development at the Carlton United Breweries (CUB) site on Broadway during recent heavy rain.  Clr Harris says that the stormwater pollution, which overflowed from the site into gutters and street drains leading to Blackwattle Bay, is completely at odds with the claims of sustainability that Fraser’s have repeatedly used in relation to the development.

Several years ago Fraser’s committed to a number of sustainability goals following litigation, organised by Clr Harris and commenced by Matthew Drake Brockman – a Sydney Law student.  Cr Harris: “These goals included the capture and recycling of rainwater from the site but Fraser’s failure to effectively manage the recent torrent of pollution casts a cloud over whether they are really serious about this. 

“It’s disappointing to see that Fraser’s feel the sustainability goals they committed to don’t yet matter because the development isn’t yet completed. It may take up to 15 years to complete and I don’t think the environment is going to wait.

“The fact that the development isn’t yet complete won’t make a lick of difference to the marine environments of Blackwattle Bay that received several million litres of sediment laden stormwater from the bare dirt at the site over the last few weeks.  Who knows what contaminants this torrent contains?  I also worry about whether or not the rain caused the heritage sewer line that runs through the site to overflow, adding raw sewage to the stormwater that Fraser’s failed to stop.” 

Clr Harris said that plans for the construction of a massive new stormwater drain prompted further questions about Fraser’s intentions for the project. 

Cr Harris: “In May this year Fraser’s announced that they were going to spend 6-7 months, working 7 nights a week, to build a new stormwater drain along 200m of Abercrombie Street.  Six months to build 200m of drain makes me think that this must be one hell of a drain.  Why would a site that’s going to be capturing most of it’s rainwater need such a huge drain?”

“Fraser’s claim to have put in additional silt traps and redirected runoff in response to the heavy rain, but attached photos show that this work was either too little, too late or both.  The same goes for the site’s holding pond, which is far too small to be effective. stormwater-2-optimised.bmp “Both these examples show that the planning work put in to ensure that the site was sustainable during construction was inadequate.” Clr Harris said.

“A true commitment to sustainability starts when the first sod is turned.  It doesn’t mean you wait around for a decade while you finish building before you clean up your act.  I’ll be keeping a close eye on the CUB site now and will make sure any further episodes like this aren’t swept under the rug.” Clr Harris said.


Moore excludes opponents from democratic process

June 11th, 2010

Lord Mayor Clover Moore’s exclusion of Councillors from meetings is undemocratic.  Below is a media release I sent out today detailing how her recent uncooperative approach to meeting times is unfair and exclusionary. 

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City of Sydney Greens Cr Chris Harris was critical of undemocratic action by the Lord Mayor Clover Moore who deliberately reduced Greens representation at Committees of the City of Sydney on Tuesday June 15th. Clover Moore Party members used their majority to amend the date of June’s Council meeting to 21st June so that Ms Moore could preside over the meeting as well as attend a council funded trip to China on the originally scheduled meeting date of 28th June. The Committee meeting was then rescheduled to Tuesday 15th June.  However the new Committee date excludes Harris’ fellow Greens Councillor Irene Doutney from the committee as well as Labor’s only representative Cr Meredith Burgmann.

“Councillor Doutney planned an overseas trip several months ago and arranged it so as to avoid her personal activities interfering with her duties on Council.”  Cr Harris said.  “For the Lord Mayor to turn around and arrogantly move the Committee dates with a few weeks notice is outrageous especially given that Ms Moore received her invitation to visit China in October 2009.”

Both Greens Councillors wrote to the Lord Mayor requesting that the meetings be moved to a date that would allow them both to attend. However their letters were ignored and the Lord Mayor failed to respond to either Greens member. 

Clr Harris said: “At the council meeting I attempted to amend the motion to leave the Committee meeting where it was and simply move the Council meeting forward to Friday 25th. This would have allowed both Greens to participate and would have accommodated Ms Moore who was scheduled to fly out of Sydney on 27th June. Ms Moore offered no explanation and simply used her numbers to ram what she wanted through. Now the Committee meeting, which members of the public are able to address, will be on a Tuesday instead of the usual Monday and this may exclude community members as well.”

“This is just the latest in a series of very telling signs that the power of having a majority on Council has gone to Ms Moore’s head.  There was no reason given, not even an acknowledgement, other ideas & suggestions were simply ignored”


Making up for climate change inaction

June 4th, 2010

A sad state of affairs has descended over Australian politics in recent months. What went from a mad rush by both the Labor and Liberal parties to prove their climate change credentials in the lead up to the 2007 Federal election has degenerated into a mass of inaction.  Prominent Liberals say that climate change is a left wing post-communist conspiracy to deindustrialise the world while Labor still talks tough on the “biggest moral challenge of our time” but is staunchly committed to doing nothing about it.  Kevin Rudd’s Emissions Trading Scheme, which paid polluters to continue polluting and only attempted to reduce emissions by a pathetic 5%, was bad enough but has now been replaced by a policy of doing nothing for at least three years, akin to hiding under the blankets and hoping all the problems will magically go away while you aren’t looking.

With so much shameful inaction by our supposed leaders it has come down to individuals, local Councils and companies to make up the shortfall of action on climate change.  City of Sydney, for example, is engaging in an ambitious program to use cogeneration and energy efficiency measures to cover 70% of its energy needs by 2030. In addition to this the City will be investing in renewable energy projects througout its facilities to generate another 25% of its power by diverting the $2 million currently spent of Green Power into a specific Renewable Energy Fund.  

Cogeneration is the production of multiple forms of useable energy via a single process.  The City’s plan is to use gas fired miniature power plants to produce electricity, heating and cooling.  While natural gas is still a fossil fuel and produces CO2 when burnt, producing power through small, locally situated cogeneration plants has several environmental and economic benefits over the huge coal fired power stations that currently produce the vast majority of electricity in NSW.

Firstly, cogeneration is a much more efficient process.  In a coal fired power station around two thirds of the energy that comes from the burning coal is lost straight away as heat that escapes up the massive chimneys of the power plant.  In cogeneration this heat is not lost but is channelled to where it is needed – the City plans to install it’s first cogeneration unit at Prince Alfred Park Pool and the “waste” heat will go into warming the pool, thus resulting in a significant energy saving.  Cogeneration units can also, counter-intuitively, use the excess heat to generate cooling by the adition of an adsorption chiller. These configurations are known as trigeneration units that produce electricity, heating and cooling simultaneously.

Additional energy savings are achieved by cogeneration through the elimination of “transmission losses”.When electricity is transmitted long distances from big coal fired power stations along high tension wires 8-10% is lost along the way.  When you add this loss to the loss of energy as heat at the power plant you end up with a total waste of 70-75% - only around 25% of the energy extracted from the coal ever gets used!  In an age where the effects of climate change are already starting to be felt it verges on criminally negligent that such an inefficient system remains our primary means of producing electricity.

While the City is focusing on installing medium sized cogeneration units, with outputs of 5-30 kilowatts (kW), in large public buildings and facilities such as swimming pools I am also working to encourage a second style of cogeneration – using smaller units (with outputs of around 2kW) to provide energy to private homes and social housing units.  I feel this application has a much broader scope for uptake as there are many more private homes than large public buildings in Sydney.  Using small units in individual homes has the benefit over using a large unit for many homes in that, while electricity is easy to transfer from place to place, heat is not, meaning that domestic generation can be much more efficient.

An Australian company called Ceramic Fuel Cells has created a 2kW cogeneration unit called the Bluegen that they plan to have on the market in 6-12 months.  Rather than burning natural gas the Bluegen is a fuel cell that converts the gas via an electrochemical reaction to produce electricity and heat.  The units are the size of a dishwasher and produce enough electricity to power two houses and enough heat to meet the hot water needs of one (water heating accounts for 27% of the average household’s energy usage).  The company estimates that the Bluegen will produce only around 25% of the greenhouse gas emissions of a coal fired power station in order to generate the same amount of energy and at around 60% of the price per kilowatt hour. 

The Victorian government agency for sustainable development, Vicurban, has recently purchased a Bluegen unit for use in the Aurora sustainable living community in outer Melbourne.  A further 30 have been purchased by the Victorian housing department to provide cheap, clean power to public housing developments throughout the state.  This month Council staff and myself will be meeting with representatives of Ceramic Fuel Cells to investigate the possibility of installing Bluegen units in a number of Council properties.

The work by City of Sydney and Ceramic Fuel Cells (which receives no government subsidies) are two examples of how of how Councils and private companies are working to fill the void in climate change action that has been left by our governments and oppositions, both state and federal.  My Greens colleagues at all levels of government will continue to push for effective action on this most important of issues but in the meantime it is up to us as individuals to act where our governments refuse to.

Disclaimer: Cr Chis Harris owns shares in Ceramic Fuel Cells, an Australian listed company, via his self managed superannuation fund.        


New power plants another Labor induced climate disaster

March 24th, 2010

Climate change impacts become more obvious every day, meaning that any government that cares about the future of the planet should be looking at ways to replace existing coal fired power stations with renewable energy sources as soon as possible.  However Kristina Keneally’s NSW Labor Government has done the exact opposite of this by announcing concept approval for another two fossil fuel burning power stations to be built at Bayswater in the Hunter Valley and Mt Piper near Lithgow.  I find it shocking that the government can even consider a project like this, let alone approve it.  Building new pollution belching stacks is the last thing a government supposedly concerned about the future should be doing. The government’s actions are totally irresponsible, bordering on criminal negligence.

These two new plants, if powered by coal, will increase NSW greenhouse gas emissions by around 15% (the equivalent of doubling the number of cars on our roads), which means _-67.JPGan increase in the emissions of Australia as a whole of just under 5%.  At the same time, Prime Minister Kevin Rudd tells us he wants to decrease  Australia’s Greenhouse gas emissions by 5%, a very weak target far below what the science tells us is necessary to avoid a climate catastrophe.  However any small benefits that this pitiful target may have had will be completely wiped out by these two new power plants being built by Rudd’s mates in the NSW Labor party.

Planning Minister Tony Kelly has said that the plants may be powered by natural gas instead of coal.  Natural gas burns cleaner than coal which means the negative impacts of the project would be a little less severe.  However the Minister says the decision on whether to use coal or gas will be determined based on “the market”.  Given the distance of the Mt Piper site from the nearest gas pipeline and the proximity of the Bayswater site to the Hunter Valley’s many coal mines, it seems highly unlikely that these plants will be powered with gas. In any event gas is a fossil fuel and therefore non renewable and should only be considered for refitting existing coal fired plants to achieve a short term improvement whilst renewable technology is developing.

The NSW Government claims that these plants will be needed over the next decade to “keep the lights from going out” – to meet the state’s increasing demand for electricity. However this claim comes from the Owen Report – commissioned by former Premier Morris Iemma to justify his plans to sell the state’s electricity assets to private companies – which exaggerated shortfalls in electricity supply in order to build support for Iemma’s ambitions.  NSW is not running low on electricity generation capacity and if it was there are much better ways of solving the problem.

In his paper How to reduce CO2 emissions by 50% Dr Mark Diesendorf, lecturer in environmental studies at the University of NSW, explains how there are no technical or economic barriers to Australia adopting widespread renewable energy technology and that the only barrier is a lack of political will.  He points out that a combination of improved energy efficiency and greater reliance on renewables could see Australia reduce its greenhouse gas emissions by 50% in the next few decades, even with a population and an economy that continues to grow.  It is to these measures, rather than ones that lock us into decades more of coal dependence, that governments should be looking for the answers to our energy needs.

    
It is a sad state of affairs that in 2010 governments are still so in the thrall of the fossil fuel industries that they ignore the needs of the planet and the demands of the people for clean energy and green jobs.  My Greens colleagues and I will be doing all we can to make sure the government doesn’t get away with this, but we need your help.  Write to your local MP, whether government, opposition or crossbencher and ask them where they stand on these new power plants.  Tell them you won’t vote for anyone who is irresponsible enough to support new coal fired power stations, then spread the message to your community.  If governments won’t make the right decisions on their own, it’s up to us to force them to.  

For more information on solar energy, see my earlier post on this topic.


Response to Climate Change Denial

February 4th, 2010

Recently, many of my Greens colleagues and myself have received an email that appears to be circulating widely which makes a number of arguments disputing the science of climate change.  The arguments are the same ones that climate change deniers have been using for many years and though they can be easily countered with basic scientific facts, the arguments keep coming.  In the interest of not shying away from debate, below is my response to these all too common but false arguments.  Most numerical data on climate change used here comes from the Intergovernmental Panel on Climate Change (IPCC) 4th assessment report (2007), available at http://www.ipcc.ch/publications_and_data/publications_and_data_reports.htm#1.

• False Argument “CO2 polar beardoes not hold any more heat than any other gas”

The Truth - This is a statement that is flawed in a number of ways and can be countered with basic high school level chemistry.  A wide range of gases, liquids and solids absorb, re-emit and store heat in different amounts, depending on a wide range of properties. 

An easy to understand example of one of these properties is colour – place a black stone and a white stone in the sun and the black stone will very soon be hotter than the white one as black objects absorb more heat than white objects.  Although carbon dioxide is the same colour as other atmospheric gases, it has other properties not detectable with the naked eye that means it absorbs and holds large amounts of heat, unlike other gases such as oxygen and nitrogen (the main two gases in the earth’s atmosphere).  Skeptics will not be able to present any evidence to dispute this basic chemical fact.

With that bit of basic chemistry and the undisputed fact that human activities, primarily burning fossil fuels, are putting more carbon dioxide into the atmosphere, the reality of climate change falls very simply into place.

• False argument “CO2 is not a pollutant, it is essential to life”

The Truth- CO2 is both a pollutant and essential to life, the same as many other chemicals.  Iron is essential to humans, yet a person with the disease haemochromatosis builds up excess iron in their bodies and this has severe negative health effects.  On an even more fundamental level water is essential to life, yet no one argues that floods or tsunamis are not destructive because of this.  The argument that because CO2 is essential to life it can’t be harmful is just as ridiculous.

• False argument “CO2 makes up such a small percentage of the atmosphere so it can’t be harmful”

The Truth - while it is true that CO2 is only 0.0387% of the atmosphere by volume its effect is disproportionate to its quantity.  Like many other substances big increases in CO2 can induce large negative effects even if the overall increased amount is still a small proportion.  Another example of such a substance is fluoride. Fatal fluoride poisoning can occur in a person who only takes in an amount of fluoride salts equal to only 0.0125% of their body weight yet fluoride in the water supply in even smaller amounts has yielded improved dental health in the population.

• False argument “Atmospheric CO2 levels have been higher in the past”

The Truth - current atmospheric levels of CO2 are higher than they have been any time in at least the last 650 000 years, a period far longer than that in which human civilisation has existed.  It is true that millions of years ago CO2 concentrations were higher than they are now, but they had a dramatic effect on the world.  Living organisms thrived under these conditions because they were vastly different to the organisms alive today and had specific adaptations to deal with these conditions.  However organisms not adapted to live in those high CO2 conditions, such as humans and most other life of today, would have a much harder time of surviving because of massive climatic differences and other effects, just as a lion adapted to live in the African savannah would have a very hard time surviving in Antarctica.  Likewise penguins survive in Antarctic environments because of specific adaptations, but these adaptations leave them most unsuited to the African savannah.

• False argument “Ocean levels have only risen 30mm since 1870”

The Truth - this figure is way off.  According to the IPCC, sea levels have risen by over 80mm since the 1960s.  Since 1993 sea levels have risen on average 3.1mm/year representing an acceleration of the 1.8mm/year average rise since 1963.

• False argument “Ice caps are expanding”

The Truth - while there has been expansion of some Antarctic ice sheets in the last few decades, due to the reductions in ozone depleting gases in the atmosphere and changed weather patterns around the Southern Ocean, overall global ice coverage is shrinking.

• False argument “The planet is not warming, it is cooling”

The Truth - global temperatures on average have risen 0.74 degrees C since 1905.The image below, produced by NASA’s Goddard Institute of Space Studies, shows the changes in surface temperature in 2001 relative to the average for 1951-1980.  11 of the 12 years from 1995-2006 (inclusive) were among the warmest 12 years since records began in the 1850s (this data only goes to 2006 because it is from the IPCCs 2007 report, there has been nothing to indicate that the trend stopped in 2006).  It is often said that because 1998 was the warmest year on record the world has cooled since then.  However there has always been year to year variation, the same as there is day to day variation – one does not deny temperatures will be warmer in summer if the 15th of November is a few degrees coolerdifferences in temperature 2001 vs. 1950-1981 average than the 14th.  The record of 1998 as warmest year ever will without doubt be broken soon.

•  False argument “Solar power cannot produce large amounts of energy”

The Truth - this argument is out of date, and becomes more out of date every year as technology advances.  Throughout the world solar thermal power plants, which produce steam that drives conventional turbines, with capacities measured in the hundreds of megawatts (MW) currently exist and plans for many more are on the drawing board.  Energy can be stored cheaply (eg in vats of molten salt) so that solar thermal plants can run overnight or at other times when the sun isn’t shining.  For a recent article on the state of this industry, see http://www.smh.com.au/business/handicapped-by-19thcentury-technology-20100202-nb3t.html

• False argument “The maximum size for a wind turbine is 3MW”

The Truth Wind turbines with outputs of up to 5MW currently exist.

• False argument “Climategate shows that the science of climate change is fraudulent”

The Truth – “Climategate” was not the falsifying of figures by the IPCC.  Rather it involved staff at a single British university who had their computer systems illegally hacked and a variety of emails taken out of context.  These emails were used to try to show that the researchers had been selective about what data they used in order to support their research on climate change.  Even if those allegations proved correct, this is one single isolated case – it does not invalidate the mass of other research (2500 scientists on the IPCC report alone) that has shown overwhelmingly that climate change is occurring.

• False argument “The IPCC admitted to lying about Himalayan glaciers”

The Truth - the IPCC have admitted that one paragraph in a 938 page report was inaccurate.  Most documents of that size, exposed to as much scrutiny as IPCC reports are, would come up with many more errors.

I hope this information might come in useful next time you need to counter uninformed statements denying the science of climate change. Feel free to send it on to your networks.  It is also worth remembering that there are many vested interests (by fossil fuel and mining companies amongst many others) in pretending that climate change isn’t real when it is.  On the other hand there are far fewer organisations, with far less resources, who have an interest in pretending climate change is real when it isn’t.  Some organisations, such as renewable energy companies, stand to make money as a result of action on climate change but these sort of enterprises only emerged after the science of climate change became well accepted.  To imply that climate change is a conspiracy, started decades ago to create a market for what was at the time fringe technology, is simply ludicrous.



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