Michael Green

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Unburnable carbon

In Environment, Social justice on June 19, 2013

This is an edited version of a talk I gave at the Wheeler Centre on June 6, 2013

AWAY from the glare and confusion on climate change, there is a deeper conversation going on. It is changing the way climate activists plan their campaigns, and it is changing conversations behind the doors where money talks.

Here is one example: on Tuesday, I went to a lunchtime meeting at Goldman Sachs, at 101 Collins Street, the swankiest office building in town.

In Rolling Stone, in 2009, journalist Matt Taibbi described Goldman Sachs like this: “The world’s most powerful investment bank is a great vampire squid wrapped around the face of humanity, relentlessly jamming its blood funnel into anything that smells like money.”

But, arguably, this meeting on Tuesday was an unusual one. It was organised by the Investor Group on Climate Change. There were about 100 people from the superannuation and fund management industry, in a big teleconference in Sydney and Melbourne, and they were there to talk to the American climate activist Bill McKibben.

Now McKibben, who is touring Australia this week, also writes for Rolling Stone. In one article last year he wrote this: “We need to view the fossil-fuel industry in a new light. It has become a rogue industry, reckless like no other force on Earth.”

McKibben got arrested twice last year for his climate activism. The event went for nearly 2 hours – McKibben gave a short spiel, and then there was an extended discussion session with a panel of super fund managers and investment analysts. Why were they engaging with this guy?

Watch this video at the Wheeler Centre website

Before I get to why they’re all willing to be there, I want to offer one small update on our current climate projections.

Turn Down the Heat: World Bank report

Late last year the World Bank put out a report called ‘Turn Down the Heat’ report, which stated that even if all nations fulfill their pledges to reduce emissions, we’re still on track for 3.5 to 4˚C warming by the end of the century.

A 4˚C world means: “Extreme heat waves, declining global food stocks, loss of ecosystems and biodiversity, and life-threatening sea level rise.” They concluded that there is no certainty that it’s possible for humanity to adapt to a 4˚C hotter world.

It’s a terrifying thought – put out by a very conservative public institution. It’s also hard to really comprehend what kind of changes that would involve, and what kind of suffering it would entail. But one thing it makes me think is that we need to do a better job of avoiding that situation.

Carbon budget: we’re blowing it

And that’s why I come back to that meeting at Goldman Sachs. The reason I was there and those finance types were there, is that a different way of thinking about the climate crisis has sharpened the debate. It’s the idea of a carbon budget. In 2009, scientists from the Potsdam Institute in Germany produced a set of emissions scenarios together with their likely influence on global temperatures.

Their paper says that to keep an 80 per cent chance of staying at 2 degrees or below, we can only release about one-fifth of the carbon dioxide in current proven fossil fuel reserves.

It’s worth noting that at the rate we’re going, we’ll have blown the budget by mid next decade. And of course, the fossil fuel industry is always searching for more.

Even for a 50-50 chance of going over 2 degrees, the report said, two-thirds of our coal, oil and gas must stay in the ground.

Subsequently, a British organisation called Carbon Tracker added to that analysis. They released some research saying that the reserves held by the world’s 200 largest listed coal, oil and gas companies alone is more than enough to exceed that threshold.

The moral case

Since the carbon budget idea has become more common, there have been two kinds of responses: the moral case and the business case. I’ll cover each one, and then the way they cross over, because that’s particularly unusual and relevant for us as citizens.

As I’ve mentioned, Bill McKibben is the person most associated with the moral case. Simply put, his argument goes like this: “if it’s wrong to wreck the planet, then it’s wrong to profit from that wreckage”.

Based on the unexpected popularity of his Rolling Stone article, he and others started a new campaign for calling for universities, churches, cities and pension funds to sell out of fossil fuel companies. It’s called Go Fossil Free, and it’s spread like wildfire across the USA. In just over six months there are already several hundred campaigns, and a dozen or so institutions have agreed to divest.

The argument isn’t so much that they’ll bankrupt the companies, but that they’ll undermine their social licence, and that open up room for regulation.

People are working on this moral divestment case here already. If you haven’t seen any yet, you can expect to. As with the US, it’s not only targeted at universities, but also churches and local councils, and for banks not to fund new fossil fuel projects.

They’ve had two wins so far: the NSW Synod of the Uniting Church has announced plans to divest from fossil fuels. And a couple of years ago, ANU students successfully campaigned for the university to sell stocks in a coal seam gas company called Metgasco. Those students are a cheeky bunch – they’re part of the national Lock the Campus campaign and they’ve since filed FOI requests for all the details of the university’s fossil fuel holdings. Now they’re moving onto the ACT government.

But most of all, the campaign here is aimed at superannuation funds.

There’s a campaign called the Vital Few – which is run by an organization chaired by former liberal leader John Hewson. It hasn’t had much success yet, but they say it’s early days. The Vital Few campaign says that across the super industry, about 55 per cent of funds are held in high carbon investments and only 2 per cent in low (although there’s no standard definition for what that means).

One plank of their campaign is a moral call to action for citizens: there’s no sense in greening your home if you’re investing in climate change all the while. You’ve got to change the way you invest.

All these campaigns have different approaches and different targets, but share a common thread – there’s a moral reason not to invest in fossil fuels, both for us as individuals and for our institutions.

The business case

But there’s another way to look at those numbers, and it’s this: “Holy heck, if four-fifths are going to stay in the ground, then someone is going to lose a lot of money.” Essentially, the argument is that investing in fossil fuels is risky, and you’ll want to sell down your stake, because if you don’t, at some point you’ll lose it.

In the case of listed companies, the value of their reserves is factored into their share price. Those reserves are assets on their books, and investors currently have an expectation that they will deliver an income stream in the future. And of course, it’s not just fossil fuels – all kinds of industries have a lot of assets tied up in the carbon economy.

Climate risk

This is one element of a broader set of risks that are described as “climate risk” – the prospect of reduced earnings or devalued assets, caused by climate change.

The first, as I just mentioned, is the “carbon bubble” or the “unburnable carbon” scenario. It’s the prospect that we’ll get our act together to prevent emissions, and fossil fuels will lose value. That could be due to tough policy measures, such as robust carbon pricing or regulations, here, in China or elsewhere.

There are other kinds of climate risk too. For example, the risk that cheap clean technology will out-compete fossil fuels. Or, curiously, if you’re a long-term investor, there’s a risk in the possibility that others will switch away from fossil fuels.

Then there’s the mother of all climate risks: the physical impacts. At the lower end of the scale – which, as we’ve seen around the world already, is by no means low – perhaps it’s a flood that destroys infrastructure. But remember the World Bank’s scenario of a 4-degree hotter world: it’s safe to assume that a climate to which humanity can’t adapt is not consistent with steady returns for investors.

Reports on reports on reports

When I started researching this stuff, I was overwhelmed by the vast quantity of reports on it. The finance world is rife with warnings about it. Most of the words spilled have been about climate risk in relation to “asset owners”: pension funds, super funds, insurers and sovereign wealth funds, such as the Future Fund. Among investors, they have a uniquely long-term perspective. In Australia the average super member has 20 years before they’ll retire.

Last year, the Asset Owner’s Disclosure Project – the organisation chaired by John Hewson, and which also runs the Vital Few campaign – released ratings of the way the funds are dealing climate risk. Australia had six of the top ten funds around the world (Local Government Super, CareSuper, Cbus Super, VicSuper, UniSuper and AustralianSuper).

But there’s no cause for celebration. The report concluded that no fund had “accurately assessed or managed its climate risk”. The highest rating fund, Local Government Super, estimates that it has about 10 per cent of its money in low-carbon assets, and 45 per cent in high.

The head of sustainability for Local Government Super, Bill Harnett, was at that meeting at Goldman Sachs, and he said this: “There is an inescapable logic that there are more fossil fuels on balance sheets around the world than we will ever be able to realize in our investments. There is an inevitability. We don’t know when, but we know it will come.”

And yet, his fund’s portfolio is still a long way from investing in a way that is consistent with limiting global warming to 2 degrees.

Why isn’t there change?

At that meeting at Goldman Sachs, everyone in the room accepted the broad numbers that McKibben stated – that four-fifths must stay in the ground. I’m assured that all the big Australian superannuation funds accept that this risk exists, in a broad sense.

Much of the discussion was about how they don’t know how to evaluate it. A couple of large financial analysts have tried. In recent months, HSBC in London did some modelling that showed a deflating carbon bubble could nearly halve the value of coal assets on the London exchange, and knock three-fifths from the value of oil and gas companies. Citi Research did a similar exercise for the Australian stock exchange and found that 14 per cent of value of the ASX200 is in coal, oil and gas, and related industries.

But the superannuation funds in the room say they don’t know how to incorporate those scenarios into their investment decisions.

Ian Wood from AMP Capital said there are two broad reasons. One is that conventional financial modelling gives greater weight to short term earnings. Future dollars are discounted, so if a coal project is making money now, then that matters more.

The other reason is the immense uncertainty about how those scenarios could play out. What will government policy be, here and around the world? If the carbon price spreads, what will it be? When and where will it be brought in? What will happen to technology? What will China do?

Here’s the upshot: for the time being, almost all of our superannuation funds are taking a position that that we won’t limit warming to 2 degrees. They’re betting that we’ll exceed the safe threshold for human civilisation. And they’re not just betting on the game, they’re playing it as well. Their investment policy helps shape that 4-degree world, and helps us on course for a world where they won’t get a good return on very many of their investments.

With a couple of minor exceptions, they’re all just sitting there, watching each other and saying they accept that it’s all true, but they can’t do anything about it.

Bad news and good news

I left the meeting with two conflicting thoughts. The 100 people there that day, they’re the ones in the whole industry who are the most engaged. And even they can’t find it in their modelling to take account of a risk they all acknowledge to be real. They’ll figure out a way at some stage, but it’s clear the change isn’t happening fast enough. Right now, the business case isn’t enough to convince super funds to change.

But there was something else. The really interesting thing about that meeting on Tuesday was this: McKibben was in the room. And the fact that he was in the room made the climate risk more significant for everyone there who was listening. The same goes for all of the campaigns, both the moral and business ones, the civic and corporate pressure.

As McKibben put it at Goldman Sachs: “For our purposes the fight is as good as the win.”

There’s a kind of vicious cycle in the way we’re investing at the moment – it reinforces the systems that cause climate change.

But the carbon bubble idea is so uncertain at the moment, and public policy is so uncertain, that the more people are talking about the carbon bubble, the more likelihood there is one.

So there’s a virtuous circle too. If these big institutions move their money, and if individuals badger their funds and their friends about it, then it becomes more of a reality for the people who are deciding how money is invested. It becomes more likely that governments will implement policy and regulations consistent with 2-degree warming.

Because of the nature of investment decisions, the tipping point isn’t the day when all governments sign off on a radical climate justice agreement. It’s the day when enough people think that significant action is possible. Or when they believe that China really is shifting away from coal. Or when they accept that the cost of solar panels has come down so fast that our centralised, fossil fuel energy system is going to change. Or when they get frightened that others are going to trade out first.

There is a deeper conversation occurring, and it is one that accepts the science, and one that includes both climate activists and market analysts. It has the potential to shift rapidly. It is happening – the only question is whether citizens can make sure it happens in time. 

Read this article on the Wheeler Centre website

Read this related article: ‘Bursting the carbon bubble’

Energy use portals

In Greener Homes, The Age on June 9, 2013

Quarterly bill shock could become a thing of the past – if you can pay attention instead.

WHEN a smart meter was installed at Tim Forcey’s house in Sandringham in March, he decided to turn the extra expense into information.

He signed onto the free ‘Energy Easy’ web-portal offered by electricity distributor United Energy.

Mr Forcey is a chemical engineer and a member of the Bayside Climate Change Action Group. With his family, he’d already made some changes – installing insulation, external awnings, double-glazing and solar panels, and switching halogen lights for LEDs, among other things.

But the portal helped the Forceys understand even more about their bill. “You can compare your electricity use hour-to-hour, day-to-day, week-to-week and month-to-month. And you can also compare your use against a neighbourhood average,” he explains.

Their usage in May – about 16 kilowatt-hours per day, for four people – was about average for their suburb. But in the details, they found motivation to do better. With the help of hourly consumption data, Mr Forcey twigged that he’d been running two modems day and night. He switched one off, and put the other on a timer.

The new information also gave him a reality check. While he’d been “hunting for watts here and there”, he figured out that the family’s spa accounts for half their energy use. “People with pools would find similar things,” he says. “Those luxury items use a lot of electricity.”

Smart meters will be installed in every Victorian household by the end of the year. Retailers are beginning to offer flexible pricing, where you can choose to pay different rates at different times of the day. Depending on your capacity to understand and alter your habits, it will prove an opportunity or a threat.

Dr David Byrne, from the University of Melbourne, says most of us don’t have a good idea of how much we electricity use.

“People tend to underestimate their own energy consumption, relative to others’,” he says. “But there’s significant error on both sides. There’s a decent number who overestimate as well.”

He expects our knowledge will improve, as better billing information becomes a matter of competition between retailers. “We’re going to be more informed about our bills – there’s going to be much less scope for bill shock,” he says.

So far, several electricity retailers and distributors have launched web portals, of differing quality. You can find more information and links on the state government’s Switch On website.

Together with his colleagues in the economics department, Dr Byrne has been studying the way householders use Billcap, an electricity information portal used by retailers Click Energy and Australian Power and Gas.

Drawing on smart meter data, Billcap allows customers to view their usage, set energy budgets, estimate bills and compare consumption with similar and efficient households. It can also offer tailored conservation tips, as well as incentives to help shift peaks in demand.

Dr Byrne says that the households who were offered the service reduced their daily usage by 3 per cent, on average.

Those customers who used the site regularly did even better. “If you’re actively looking at the information, we found a 7 per cent reduction in daily energy usage,” he says.

The researchers are working to identify exactly how the participants cut back their usage, and who engaged most. “We’re digging further into the data, but these estimates are consistent with what has been found internationally,” he says.

Read this article at The Age online

Gelato at Brunetti’s

In Culture, Environment on May 29, 2013

“I am always drawn back to places where I have lived, the houses and their neighbourhoods.” That’s the first line of Breakfast at Tiffany’s by Truman Capote.

Me – I am always drawn back to Breakfast at Tiffany’s, the sentences and their paragraphs.

Every autumn, for the several years I’ve rented a room on an elm-lined street in Carlton, I get an urge to read the novella. I want to read it sitting in my terrace courtyard in the waning sun; on a stool in the window of a busy café; on my grandmother’s old armchair in my room, looking out to the yellowing trees.

It’s an autumnal story, gentle and sad, lonely and tender, its scenes fluttering with falling leaves. It begins and ends in fall, and the narrator first meets Holly Golightly in September, on “an evening with the first ripple-chills of autumn running through it”. It barely wisps through winter and spring, and Holly “hibernates” in summer.

The narrator she calls “Fred”, after her brother, or sometimes Buster or Cookie, and who shares much with a young Capote – and something with me, too – says he doesn’t care much for springtime; autumns, rather, “seem that season of beginning”.

I’ve never thought about the book all that much, about what it means, or why I like it so. I just want to read it when the mornings are crisp.

But this year, I was drawn to it before the leaves alerted me, by the New Yorker, which carried a dismissive review of a new Broadway adaptation. The critic adores the novella, however: it is “so extraordinary a work,” he wrote, “that it incites not writerly envy but pride”.

Yes, I thought, that’s true. When it was published, Norman Mailer said Capote was “the most perfect writer” of his generation, who wrote “the best sentences, word for word, rhythm upon rhythm”. Mailer said he “would not change two words” in the book. Yes, I should read it again. Maybe its sentences will rub off on mine?

That was in early April. Normally, the leaves on my street would have begun to fall by then. One summer during the drought they fell at Christmas and we all worried it was the end for the trees. But the council installed all kinds of sprinklers and mulched around the trunks, and gradually they recovered. And this year, autumn arrived late. The hottest summer on record stretched deep into March and April: an extended, gelato-summer, my evenings still punctuated by the short walk across the park and around the corner to the ice-cream counter at Brunetti. Beneath those balmy days and mild nights the trees remained green. 

***

I do not know how many times I’ve read the book; less than ten, I’d guess. But I do remember when I first heard of it. I was in a crummy bar in Canberra, visiting an old friend, my first housemate when I moved there after university. He is several years older, a contrary character, alternately passionate and ambivalent about day-to-day life.

The bar has a sour smell, sourer every time I return. There were three of us: my friend and an old comrade of his – a socialist turned sensualist with a large tattoo of a rat on his forearm. We were drinking beer and talking about books; or rather, they were talking about books and I was listening. The socialist adored Breakfast at Tiffany’s. My friend agreed: “It’s a gorgeous story,” he said and his eyes grew moist, as they do in all the conversations with him I like best.

I thought it improbable. I’d never seen the movie – still haven’t, as a matter of fact – but I had the notion it was a swooning romance. I was suspicious of the book. Nevertheless, I bought a copy, one of those cheap, orange, Penguin classics. It contains the novella and three short stories, same as the first edition in 1958. It is pleasingly slim, enough to fit in your pocket.

The story isn’t a romance, I found out – not that sort, anyway. It’s all memory, belonging and loss, and a platonic kind of love. A decade on, Fred recalls the cycle of seasons he spent living above Holly Golightly in a New York brownstone; at first captivated, then burned and finally, warmed, by her reflected glow.

It was wartime, 1943, and young Fred had moved from the south with a fancy to be a writer. Before he’d even met her, the card above the girl’s mailbox nagged him “like a tune”:

Miss Holly Golightly

Travelling

Holly is a society girl, not a prostitute, though she understands the gossip; after all, she admits, “I’ve always thrown out such a jazzy line”. Assorted unpleasant men exchange generous tips for her company; Capote described his creation as an American geisha. She’s only 19, escaping her past, but always remembering it – playing sad country songs in the fire escape while her hair dries – and then inventing herself anew.

I’m not one for recalling plots, and I know it. But even so, Breakfast at Tiffany’s surprises me every time. By the end, yet again, all I have is a shimmering sense of her, and an impression of the writer too, the outsider upstairs, sometimes writing, often listening in, wishing he were nearer.

This year, though, I noticed a few things along the way.

It’s the ’40s, sure, but Holly stumps for marriage equality. She’s settled down some by this stage, and tells Fred she loves her man just fine, but he’s not her “guy ideal”. And who is? Jawaharlal Nehru, say, or Greta Garbo: “Why not? A person ought to be able to marry men or women or – listen, if you came to me and said you wanted to hitch up with Man o’ War, I’d respect your feeling. No, I’m serious. Love should be allowed. I’m all for it. Now that I’ve got a pretty good idea what it is.”

Man o’ War was a famous thoroughbred horse.

This too: I discovered – again surely – that Fred’s birthday is 30 September, the same as mine. And Capote’s. Not only that, but it’s also the day on which everything unravels: “So the days, the last days, blow about in memory, hazy, autumnal, all alike as leaves: until a day unlike any other I’ve lived.” That’s how Fred described our birthday. It was really the three of us there, you know: Holly, Fred and me.

But most of all, I thought about Holly and the “mean reds”. Not the blues.

“No,” she tells Fred, slowly. “No, the blues are because you’re getting fat or maybe it’s been raining too long. You’re sad, that’s all. But the mean reds are horrible. You’re afraid and you sweat like hell, but you don’t know what you’re afraid of. Except something bad is going to happen, only you don’t know what it is.”

Her only cure is to hail a cab to Tiffany’s and look in the windows. “It calms me down right away, the quietness and the proud look of it; nothing very bad could happen to you there, not with those kind men in the nice suits, and that lovely smell of silver and alligator wallets.”

Holly yearns for a real-life place that makes her feel the way Tiffany’s does, maybe in Mexico by the sea, when her lost brother returns from the war. She went there once – they’d raise horses, and he’s good with horses. But even as she says it, Fred and Holly and me, we all know it’s an impossible dream.

***

In my street, the first heavy leaf fall came on May 1, the first day of the last month of the season: there was a cold wind and the yellow leaves fell like a storm. But then it got warm again, and once more I went for gelato. In most respects I’m an advocate for variety, but when it comes to ice cream, I’ve settled on my gelato ideal: two scoops in a waffle cone, chocolate and lemon.

This autumn Brunetti moved around the corner from Faraday Street, where it had been for nearly 30 years, and into the space on Lygon Street vacated when Borders died.

I visited the new store on a Saturday night, on a date. I had the mean reds that day, shot through with the blues: I knew well the cause. I’d been writing about climate change – the worsening disaster projections now, next decade, throughout my lifetime and beyond, together with the profound absence of either prevention or preparation. Nothing new, I know, but nothing tolerable either, when you think about it. In a recent journal article, a speculative “future history” by respected American science historians Naomi Oreskes and Erik Conway, I read a throwaway line: “The human populations of Australia and Africa, of course, were wiped out.”

The store was alive, teeming and hollering like an old-time trading floor in a stock boom. As we entered, it became clear there were two kinds of people. Dozens of waiters strode after their errands, wearing bow ties and black waistcoats or else slim black aprons tied in a cross at the back, while all around the rest of us tottered, distracted and enraptured by the cakes, tarts, chocolates and macaroons, and the mirrors, the bonze trim, the patterned tiles and the blown-up, black and white photographs on the walls. We gaped alongside infinite desserts, we stared at the baristas on the central podium and we swept past pastries and savouries, croissants and paninis, until we stopped before a huge, tiled pizza oven.

I was agog. Sparkle-eyed. I turned to her and gestured toward all the people, sitting, talking, waiting, laughing, fattening: “Isn’t it wonderful?”

To our left there was a roped-off section commanded by a waiter in a headset. Straight ahead, the gelato, more flavours than ever before. “Maybe,” she replied slowly. “But it’s so much. It’s awful. It’s madness – it’s everything that doesn’t make sense.”

I agreed: awful. And wonderful. We slipped out of there, without gelato this time, and back into the autumn Carlton night.

***

I read the novella for a second time, writing this story, but the moment had passed. I’m done with wistfulness, for now. Everything – endless summer and falling leaves, apathy and indulgence, reds and blues, bad governments and worse; brown coal, Breakfast at Tiffany’s and humanity – it all has its season.

Read this article at the Wheeler Centre website

Waves of change

In Greener Homes on May 19, 2013

King tides give residents a view into the future of our coasts

TWICE a year, the tides reach their peak. And when they do, the sea washes over piers and paths, and inundates parks. It’s a prelude to a coastline with higher seas all year round – one in which seaside real estate will be at increasing risk.

“King tides are a great proxy,” says Caitlin Calder-Potts, from Green Cross Australia. “They’re a way of bridging the gap between an abstract projection for sea level rise, and actually seeing what the impacts are in your local area. By observing them, we can understand how our coasts might change.”

To that end, she’s coordinating a project called Witness King Tides, in which citizens photograph while the waters rise. You can register online, then upload your snaps of the seaside.

The next big tide during daylight hours will sweep the Victorian coastline from May 26 to 30. It peaks in Portland at lunchtime on the 26th, for example, or Port Welshpool at dusk on the 30th. (Find the exact tide times on the Bureau of Meteorology website.)

The project started in New South Wales in 2009, and since then, it’s been held in Queensland and southern Tasmania. So far, wave watchers have uploaded 4000 images. Many show coastlines coping well, but elsewhere, infrastructure is already at risk.

“We’ve had feedback from lots of surf life saving clubs saying they’re vulnerable, and community spaces like parks and foreshores too. Erosion and estuarine flooding are fairly common during king tides,” Ms Calder-Potts says.

Illustration by Robin Cowcher

The project’s popularity isn’t surprising: more than 8 out of ten Australians live near the coast, and there are over 700,000 homes within 3 kilometres of the sea.

According to the Climate Commission, sea levels are likely to rise by between half a metre and one metre by 2100. Even at the lower end, that could increase the frequency of flooding by several hundred times.

But last year, the Victorian government last year scrapped a requirement to plan for 80 centimetres sea level rise by the end of the century (except for new “greenfields” developments).

Professor Bruce Thom, former chair of the federal Coasts and Climate Change Council, says the planning system should adopt higher-end thresholds for developments that are expected to last.

He was part of a 2009 government study into the climate change risks to Australia’s coast. It found that hundreds of thousands of buildings would be at risk of flooding and damage under a high sea level rise scenario that coincides with a storm surge.

Prof Thom says king tides – which aren’t connected with human-caused global warming – help us understand sea level rise because they make local impacts clear.

(“King tide” isn’t a scientific term. It refers to the biggest of the regular “spring tides”, which occur when the Moon is full or new, and aligned with the Earth and the Sun.)

Local knowledge is useful, because sea level is more complex than you might think. Firstly, the ocean isn’t flat – it’s constantly in flux, in the same way as the atmosphere moves according to high and low pressure systems. Secondly, tidal levels depend on the shape of the shoreline.

“What happens at a particular place can vary enormously because of the nature of the bays, inlets, lakes and lagoons,” Prof Thom says.

Climate change causes sea level rise in two main ways: by increasing ocean temperatures (water expands as it warms) and by melting glaciers, ice caps and ice sheets.

“In certain parts of Australia we’ve had a very small amount of sea level rise going on for some time,” he says. “The fear scientists have is that the rate of rise will increase – that it isn’t linear and could be exponential. The big concern is disturbance to the Greenland ice sheet or the West Antarctic ice sheet.”

Read this article at The Age online

Breaking the gridlock

In Greener Homes on May 12, 2013

In 2020, could citizens hold the power?

MAY 12, 2020: Australia’s greenhouse gas emissions have fallen by nearly a third in the last decade, according to a report by the Department of Energy Transition, Efficiency and Enoughness.

The report showed a dramatic shift to localised, renewable energy production, made possible by radical improvements in efficiency. One in every three Australian households supplies its own electricity – whether individually, in clusters or small communities.

The report highlighted three key drivers for change: the affordability and reliability of solar photovoltaic panels and ongoing improvements in batteries; the community campaign to switch from fossil fuels; and the Great Firestorm Summer of 2016. It found that those tragic bushfires were a catalyst for the technology to leap from the fringes into the mainstream.


Illustration by Robin Cowcher

What’s all this? It’s a composite of future scenarios imagined by Alan Pears, adjunct professor at RMIT University, and energy consultant Tosh Szatow – both of whom are advocates for localised, not centralised, electricity generation.

While such a rapid switch away from the grid seems hard to imagine, Mr Pears argues that the indicators of change are already with us.

“There are so many emerging options for distributed energy, smart backup generators and battery storage, together with efficiency to dramatically reduce our needs, that the old electricity industry can’t win,” he says. “The centralised technology solution they’re offering will be out-competed by these diverse solutions.”

Appliance manufacturers are already prototyping “smart energy packages” for households: a combination of home-scale renewable energy, together with storage, efficient appliances and monitoring systems.

Mr Pears says big-box appliance retailers will begin selling those packages on a pay-as-you-go, no upfront cost basis.

How will the existing electricity networks and regulators respond? One possibility is that they’ll attempt to maintain profitability by switching to capacity charges – where you pay for the amount of network capacity you need at your peak usage – or by increasing fixed fees.

“Even now my fixed electricity charge is significantly more than half of my bill,” Mr Pears says. “I’m grouchy about that. Fixed charges are regressive – they fall disproportionately on low-income and low-energy users.”

He believes that either way, there’ll come a time when going off-grid becomes the most attractive option. “People who live simply and have low consumption will be the first to move off-grid in the city,” he says.

Mr Szatow, from Energy for the People, agrees that the trend is toward more local generation and storage of power, and more self-reliant homes and communities.

“It was only in about 2000 that the world started taking solar photovoltaic panels seriously. By 2012 in Australia, the price had come down to the point where it was cheaper to produce your energy than buy it from the grid,” he says.

Some households will go it alone, while others – with the help of new energy services businesses – will combine to buy extra storage and backup generators.

“Changes always begins in a niche,” Mr Szatow says. “The niche for small-scale energy generation is where the centralised grid is weakest – for example, in new suburb developments where the network hasn’t been built, or in remote areas where reliability is poor or the servicing costs are high.”

He argues there are several possible catalysts (and timelines) for the niche to become mainstream, including natural disasters, cheap battery technology developed in response to high oil prices, and new energy service models.

Read this article at The Age online

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