Tag: NZ

How Kiwi know-how can save the world

This a guest post by Kevin Cudby, the author of From Smoke To Mirrors, reviewed earlier this week by Bryan.

I started researching my new book, From Smoke to Mirrors, back in 2007. I had been following alternative energy stories, and I was inundated with blogs and press releases from hucksters peddling silly ideas that would do nothing but separate investors from their savings.

So, in late 2007 I set out to document the strengths, weaknesses, and costs of all the options. I kept in mind that hydrocarbon liquid fuels (petrol, diesel, jet fuel, and fuel oil) underpin key elements of human civilisation, such as food production and distribution. Although the relative importance of cars, trucks, aircraft, and tractors might change over time, it will only be possible to eliminate liquid-fuel-related greenhouse emissions if we can find practical alternatives for every vehicle and machine. Forty percent of New Zealand’s liquid fuel is used on non-road applications, so it would be pointless to fix road transport and ignore agriculture, construction, aviation, and all the other non-road liquid fuel users.

 

My engineering background helped me sort the practical options from the vacuous nonsense. It had been a while since I’d worked with battery technology, and I enjoyed ferreting out detailed technical information about the latest rechargeable batteries, information their promoters would rather keep secret. I learned, for example, that battery-powered farm tractors would be about as practical as concrete helicopters. Then I moved on to hydrogen fuel cell vehicles—which, from the practical perspective, are looking pretty good. But hydrogen tractors are almost as impractical as battery-burners.

We know about practical processes for converting softwood chips into electricity, hydrogen, hydrocarbon fuels, and ethanol

It is clear that energy forestry is New Zealand’s most practical option for hydrogen, and for hydrocarbon fuels. New Zealand scientists knew about this possibility way back in the 1970s, though the technology for making trees into fuel was still being developed. Now, we know about practical processes for converting softwood chips into electricity, hydrogen, hydrocarbon fuels, and ethanol. No matter which technology New Zealand uses for road transport, our energy forests would occupy pretty-much the same amount of land. Researchers have calculated that the “energy profit” (or EROEI) of fuels made from wood chips will be better than that of our existing fossil fuels.

Perhaps the most exciting discovery, for me, was that radiata pine forests offer so many environmental side-benefits. I knew from personal observation that the native undergrowth in a 25-year-old radiata forest is far more luxuriant than the undergrowth in a 25-year-old stand of regenerating kanuka. But I am not a biologist, so I had to listen to the experts. I learned that converting steep low-quality grazing land into energy forests would improve biodiversity by creating habitat for a wide range of native species, from fungi to kiwis and falcons (the bird, that is). And I learned that foresters do not use fertiliser, and that third-generation radiata forests in the Central North Island are doing as well, or better, than the original plantings.

It seems New Zealand foresters have invented a biomass production process that can operate indefinitely. The technique has been thoroughly proven over many decades of real-world practice. We can share this expertise with other countries, which means Kiwi know-how can help knock a very large dent in anthropogenic greenhouse emissions.

There’s an excellent chance New Zealand will have the world’s cheapest renewable petrol and diesel

Even more exciting, there’s an excellent chance New Zealand will have the world’s cheapest renewable petrol and diesel. I’m guessing many New Zealanders will be very excited about that, especially considering what I learned about the future of conventional cars and trucks. Talking to overseas engineers, I learned about simple, practical engine and transmission systems capable of more than halving the fuel consumption of conventional road vehicles, without downsizing them, and without relying on battery hybrid systems.
So, although renewable petrol and diesel will be somewhat more expensive than today’s fuels, the improved efficiency of future vehicles will more than compensate.

We can be almost certain that sometime between now and 2030, the global economy will hit serious problems with the supply of liquid fuels. That is because fuel supplies will increasingly come from synthetic fuel factories. It can take up to six years to design, build, and fully commission a synthetic fuel factory, regardless of whether it makes climate-neutral fuel, or fossil fuel. Multi-national energy companies will be able to maximise their profits by delaying construction of synthetic fuel factories until prices begin to skyrocket. We know this will happen, but we cannot say exactly when it will start to affect global fuel prices. A growing number of analysts think it will happen before 2030, and the real pessimists think it will happen before 2020.

However, by 2040, if New Zealand gets stuck in and builds the necessary infrastructure, we can reasonably expect freight costs, and vehicle running costs, to consume a smaller fraction of the family budget than they do today.

There is no sign of any practical alternative for hydrocarbon liquid fuels for non-road applications. But these applications account for nearly half of New Zealand’s liquid fuel consumption.

So, while car and truck manufacturers are playing around with every technology that can turn a wheel, New Zealand should climate-neutralise its supply of essential, non-road fuels. This will keep us busy well into the 2020s. By then, thanks to advanced fuel injection and exhaust treatment systems, tailpipe emissions from conventional vehicles will be insignificant compared with pollution from tyre wear. All road vehicles have tyres, so environmental concerns will not influence our choice of cars and trucks. We’ll use whichever technology is the most practical.

From Smoke to Mirrors outlines a transition plan that takes account of these and other factors. I did not invent the transition plan. Associate Professor Susan Krumdieck did that, leaving it up to people like me to flesh it out and show why it is practical. Krumdieck proposed a direct attack on the problem’s fundamental origin. Fossil fuels cause greenhouse emissions, and greenhouse emissions cause climate change, so Krumdieck says we should simply ban fossil fuels. If you read From Smoke to Mirrors, you’ll see how simple and practical this would be.

New Zealand can do this. In fact, New Zealand should do this. We are a very small country, and if we cannot work together, how can we expect the rest of the world to do it?We need all our political parties to work out a multi-party agreement. This is about banning fossil fuels and developing the infrastructure to fully replace the billions of litres of fuel we’ll need by 2040. Left-right political questions, such as whether to build roads or railways, would be outside the scope of this agreement.

I’ve met young people who say: “We’re stuffed anyway, so I’m just gonna get as much as I can , while I can, and to hell with having kids.” That’s OK if there is no technical solution, or if the solution involves returning to medieval technology. But I’ve seen enough good technology to know the world will not go there. So, I hope my book will provide hope for those young people who have been led to believe there is no hope. My grandchildren’s generation will be the first to grow up knowing that we can solve this problem, because “From Smoke to Mirrors” makes the solutions readable and easily understood.

New Zealand can be self-sufficient for climate-neutral energy. Other countries can benefit from Kiwi expertise. This is a multi-decade project that could inspire every New Zealander. The question is whether our politicians are up to the challenge.

From Smoke to Mirrors

Kevin Cudby doesn’t rush to easy conclusions in his new book From Smoke to Mirrors: How New Zealand can replace fossil liquid fuels with locally-made renewable energy by 2040. He is clear that fossil fuels must be eliminated but seeks to be realistic about how that can be done. The focus on New Zealand is not exclusive; however, he considers that New Zealand can provide an example which many others will want to learn from and follow. There’s also an economic imperative that we be able to show those who holiday here or buy our products that they are not thereby exacerbating climate change. Cudby envisages a society continuing to have the transport opportunities we currently enjoy and depend on, but fuelled differently. He fully accepts the warnings of climate science, taking James Hansen as a guide in that respect.

The book painstakingly leads the reader through a wide variety of technologies relevant to its search.  Battery vehicles receive close and sympathetic attention but are seen as unlikely to be sufficiently developed to be widely used in NZ road transport before 2040, though they may well make sense for some transport businesses. In discussing hydraulic hybrid (rare as yet) and plug-in battery hybrid vehicles he notes that their low fuel consumption will cancel out rising fuel prices. Hydraulic hybrids should have proved by 2020 whether they can deliver what the promoters promise; he certainly sees them becoming common on machines such a ditch diggers. Hydrogen fuel cell vehicles show much promise, and he sees a future for them in New Zealand, though not in significant numbers before 2040.  The discussion of these differently powered vehicles is illuminating in its detail, with very useful explanations of how they work and what problems have yet to be overcome in each case.

Liquid fuels will continue to play a major part in NZ transport by 2040, in the author’s view. They will also remain essential in non-road equipment and vehicles, which Cudby frequently reminds the reader are substantial users of fuel. It will not be enough to eliminate fossil fuels from road transport. Air and sea travel must also be fuelled from non-fossil sources. At this point in his book the Biomass Gasification and Fischer-Tropsch (BGFT) process enters the scene. It yields synthetic crude oil that can be converted into diesel, kerosene, fuel oil, and petrol. BGFT fuels directly replace conventional liquid fuels. They work best with dry biomass. They are expected to be commercialised by 2015, and although they will be more expensive than conventional fossil fuels their use should not affect transport costs because improved vehicle efficiency will offset the higher cost. Cudby estimates that to provide sufficient biomass to satisfy its entire liquid fuel requirements with BGFT synthetic fuels New Zealand would need purpose-grown energy forests covering between nine percent (low scenario) and thirteen percent (high scenario) of its total land area. Excluding from consideration native forests and conservation areas, as well as arable or high quality pastoral land, he finds that between 29 percent (low scenario) and 40 percent (high scenario) of steep low quality land would suffice for the energy forests. I was reminded of the report in 2006 of the Energy Panel of the Royal Society of New Zealand 2020: Energy Opportunities which envisaged a rapid transition to carbon-neutral transport fuel and produced an analysis which demonstrated that New Zealand can easily grow the required biomass without impinging on productive soils.

The book also considers the Hydrothermal Liquefaction (HTL) process, a likely useful complement to BGFT because it copes well with wet biomass and is a promising candidate for converting microalgae into liquid fuels as he notes NZ company Solray Energy is demonstrating. Algae biofuel receives attention but Cudby sees it as not yet ready for commercial-scale stand-alone fuel production. Biodiesel, which he differentiates from synthetic diesel such as BGFT or HTL, is not an option for running the NZ transport system but could fulfil a very useful niche role as a lubricity additive to synthetic diesel. Ethanol will have a role, but for the present its high cost and inferior environmental performance compared with synthetic hydrocarbons tells against it.

This general outline does little justice to the detailed coverage Cudby gives to all these and many related topics as he outlines the options for transport and non-road liquid fuel use. The technically inclined reader will be well engaged. As the author proceeds to his assessment of the options he acknowledges that the world’s transport systems will eventually depend on solar fuels, hydrogen, batteries, or perhaps algal biofuels. However for now none of them are competitive with conventional vehicles fuelled by synthetic biofuels. While we wait to see which technologies will ultimately succeed we should get on with the decarbonising of our supply of liquid fuels. He proposes opening renewable energy facilities at 18-month intervals beginning in 2018. The first six factories would make hydrocarbon liquid fuels. Thereafter it would depend on how world technologies are developing. The products of the first factories would certainly be needed during a 20-year investment life of the factories.  Energy forests have a twenty-five year rotation and he looks to an acceleration of the process in the first stages by using some existing forests for energy, by planting trees close together and harvesting them sooner, and by using unwanted pine trees, gorse and other scrubby weeds.

There are two distinct stages to the transition. The first is replacing the essential hydrocarbon fuels, that is, non-road petrol and diesel, aviation kerosene, and fuel oil. The second is carbon-neutralising road transport, which may involve the vehicles as well as the fuels and perhaps include a mix of different technologies.

It can be done by 2040 but in Cudby’s view it won’t happen as a result of carbon pricing schemes, whether by emissions trading or a direct tax. Energy companies will continue to pursue the enormous potential for liquid fuels made from natural gas, tar sands, heavy oil, oil shale, coal, and methane clathrates. We must therefore progressively ban imported fossil fuel as we develop our biomass synthetic fuel, and while we are about it ban indigenous fossil fuels as well.

“…the only foolproof way to eliminate fossil fuels is to outlaw them”. This is an eminently sensible thing to say, especially when the writer has set out in considerable and thoughtful detail how they can be replaced. But as I read this section of the book I tried to imagine our Minister of Energy engaging with it and failed. In fact he is doing precisely what Cudby says the energy companies will continue to do, pursuing fossil oil to its last drop, holding out a promising future for coal and expressing hope that methane clathrates can be tapped.

Full marks to Cudby and others like him for a thorough and patient exploration of the means by which we can end our reliance on fossil fuels. His vision of New Zealand showing the way, able to demonstrate renewable fuel in almost every type of vehicle even invented, is not bombast but technically grounded.  “What are we waiting for?” are his final words. To which I fear the answer is political leadership intelligent enough to understand the danger of climate change and resolute enough to take a lead in tackling it. And voters ready for such leadership. Technologically, if Cudby is right, we are ready, but politically is another matter.

Waving, not drowning (yet)

I found myself hesitating over reporting a further attempt on the part of Oxfam to draw attention to the increasing plight of populations in poorer countries faced with the early effects of climate change. In this case it is Oxfam New Zealand’s Wave of Change campaign, highlighting climate impacts in the Pacific region.

Why was I hesitating?  Fear of overdoing a theme? Recognition that there is not absolute scientific certainty that a particular event can be attributed to climate change? Caution about compassion fatigue? Foreseeing reactions from some that this is just another begging strategy devised by the pesky poor? A general feeling of hopelessness about the likelihood of rich nations taking a sustained interest in the plight of others, even when their responsibility for that plight is established? Not wanting to be seen as a bleeding heart liberal?

 

All these elements, and others, were discernible when I interrogated myself. None of them justified ignoring the Oxfam news release sitting in my inbox.  All the more when I read George Monbiot’s latest Guardian article. His argument is more generally political than climate change related, and I don’t propose discussing it here in those wider terms. But his conclusion was entirely relevant to this post:

“People with strong intrinsic values must cease to be embarrassed by them. We should argue for the policies we want not on the grounds of expediency but on the grounds that they are empathetic and kind; and against others on the grounds that they are selfish and cruel. In asserting our values we become the change we want to see.”

So let me write briefly about the Wave of Change campaign. It’s timed as the Cancun conference comes into view.  There appears to be some slight hope that Cancun will see advance on the transfer of finance and technology from developed countries to help developing countries adapt to climate change. Oxfam intends that New Zealand politicians and negotiators are well aware of the seriousness of the need of our Pacific Island neighbours in this respect. The declaration opening the short video on their website:

“People of the Pacific are among those to be hit first and worst by climate change.”

This isn’t just about the future danger of islands disappearing as a result of sea level rise, as Oxfam’s Coordinator Anne-Marie Mujica pointed out when launching the campaign:

“Right now people are struggling with salt poisoning their staple food crops and polluting their drinking water.”

A Pacific Conference of Churches spokesperson underlines this when he  speaks on the video of the increase in the severity and frequency of extreme weather patterns.

“Salt water is now seeping into the food crops and the drinking water. Tropical storms are more fierce.”

One woman puts it simply:

“Seawater is coming. Every high tide I have water in my front yard.”

The campaign seeks a fair deal. Two Pacific Islanders on the video say it:

“Our Pacific urgently requires a fair deal on climate change.”

“We need to protect our Pacific regions. We need to speak out loud and clear for a fair and ambitious deal on climate change.”

Fair deal is the right note to strike since issues of justice are clearly involved when the effects of  emissions are felt by those least responsible for them.   One woman speaker says:

“Climate change is not just about science; climate change is about human rights.”

These are island voices. People alarmed by what they see happening where they live and asking for attention and fair treatment. Auckland is the most appropriate city in the developed world for their voice to be raised loud and clear.

Awareness-raising events taking place around Auckland this week are detailed on this Facebook page.

One of the campaign activities suggested is writing to the NZ Prime Minister. He should be open to the plea. New Zealand has signed up to the Copenhagen Accord and consequently no doubt expects to make a proportionate contribution to the funding targets outlined in that Accord to assist developing countries adapt to and mitigate climate change.

Last word to Oxfam’s Mujica:

“New Zealand may be a small country, but we’re a big player in the international climate talks. Our negotiators lead, or are members of, important working groups. It’s time to show the government that its citizens want them to do more to protect our Pacific.”

Anyone for 10/10/tennis?

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his is a guest post by the team at 350.org Aotearoa, describing some of the events planned in New Zealand for the 350 Aotearoa Global Climate Working Bee on 10/10/10 — part of the international 10/10/10 campaign.

350 Aotearoa is part of an international campaign and aims to mobilise New Zealanders to initiate actions to address climate change. The flagship day on 10th October 2010, the Global Climate Working Bee, will see thousands of volunteers planting trees, organising bike rides and insulating homes in a bid to get to work on climate change and do something positive for the environment.

350 Aotearoa supports the goal of reducing carbon dioxide from its current level of 390 parts per million (ppm) to below 350 ppm, the safe upper limit according to the latest science. Over 5,100 events are already registered in over 170 countries for 10/10/10, including 90 in New Zealand.

Some of the inspirational actions include:

 

  • In Auckland, staff from the White Roofs Project will paint many high-visibility rooftops white to reflect sunlight and help cool the planet.
  • Cyclists are getting to work by running free bike skills workshops and fix ups in Auckland, Wellington and Christchurch. They are aiming to get as many bikes as possible out of storage and road-ready for summer.
  • Volunteers will be planting native species in Earthwise Valley, on the Coromandel Peninsula, throughout October to convert degraded farmland back to native rainforest.
  • 350 locally sourced natives will be planted in Carterton, Wairarapa, to regenerate wetlands and clean up the polluted Kokotau swimming spot.
  • The 10/10/10 Wellington Wander will showcase the best walking shortcuts in Wellington to encourage swapping the car for your feet.
  • An environmental awareness and education festival aims to bring all Marlborough has to offer in terms of sustainable practices together.
  • At Scarborough beach, south of Timaru, volunteers will clean rubbish from along the shoreline and plant native trees in the nearby wetland.
  • Frocks on Bikes will take a tour around Christchurch city.
  • In Christchurch, volunteers will have an afternoon of planting native plants to the soothing sounds of trance music with live DJ performances.
  • ‘Swap it’ encourages Dunedin locals to spring clean their closets in a sustainable fashion.
  • In Dunedin, locals are invited to a low-carbon picnic event with live music and face painting. The picnic will showcase seasonal and locally sourced food.

Action in the community not only has the potential to minimise the effects of climate change directly, but also has the power to influence and inspire change in other sectors such as business and government.

After the events, all eyes turn to Cancun, where world leaders are meeting in December to build an international treaty to reduce global carbon dioxide emissions. The failure of world leaders to reach a binding agreement in Copenhagen last year makes the negotiations especially critical.

Interested groups are encouraged to register by visiting www.350.org.nz.

[Cream]

The politics of failure/the failure of politics

As an example of contradictory thinking it would be hard to better Energy and Resources Minister Gerry Brownlee this week. He was announcing that oil and gas exploration in New Zealand is to get a substantial boost in government resources, including funding to further the possible exploitation of deep-sea methane hydrates.

He made a plea for New Zealanders to consider the potential for an accelerated oil and gas discovery programme to be achieved in an environmentally responsible way.

“People need to shift their thinking on exactly this issue. The development of New Zealand’s natural resources and the protection of the environment are not mutually exclusive. It is only through a strong economy that New Zealand can afford the expenditure required to look after and improve our environment.”

Is it unfair to construe this as follows?

We need to mine more oil and gas, the burning of which will hasten dangerous climate change, in order to become rich enough to deal with dangerous climate change.

In fact of course, when Brownlee talks of the environment he is probably not thinking of climate change at all.  He gives very little evidence of ever thinking of climate change.

 

The contradictions of which Brownlee is an example are deeply embedded in the political scene in a great many countries. There is very little indication that governments are preparing to stop the mining of fossil fuels.  Indeed there’s every indication that they’re ready to increase it whenever it looks as if there could be an economic benefit in doing so. Even the monstrous environmental assault of the extraction of oil from the Canadian tar sands is justified by its proponents. American Senator Lindsey Graham, who once supported a US climate bill, announced recently on a visit to view operations that he was going to do all he could to make sure that the oil sands production was not impeded because of US policy. He remarked that its production “really blends in with the natural habitat”!

One risks being regarded as slightly mad in declaring that a rational New Zealand would leave any possible new oil and gas fields undisturbed, along with coal unless effective carbon capture and sequestration processes are in place. But that seems to me to be the sane view at this stage of our understanding of what greenhouse gas emissions are doing to the climate.

George Monbiot has been reflecting on gap between the grand announcements of governments about emissions reductions and the reality that they aren’t achieving them. In a bleak column this week he writes that the failure of the international political process to find a successor to Kyoto means that “there is not a single effective instrument for containing man-made global warming anywhere on earth.”

It’s not as if the warnings are getting weaker.  They are clearly mounting as the evidence continues to accumulate.  But “the stronger the warnings, the less capable of action we become.” We were mistaken to think that something might come out of the last 18 years of talk and bluster. Environmentalists tend to blame themselves, but there was no strategy sure of success. The powers ranged against us are too strong.

“Greens are a puny force by comparison to industrial lobby groups, the cowardice of governments and the natural human tendency to deny what we don’t want to see. To compensate for our weakness, we indulged a fantasy of benign paternalistic power – acting, though the political mechanisms were inscrutable, in the wider interests of humankind. We allowed ourselves to believe that, with a little prompting and protest, somewhere, in a distant institutional sphere, compromised but decent people would take care of us. They won’t. They weren’t ever going to do so.”

Monbiot concludes that we must stop dreaming about an institutional response that will never materialise and start facing a political reality we’ve sought to avoid. I guess here in New Zealand that means accepting that the juggernaut of “resource” exploitation is going to roll on and leading politicians are going to continue to talk as if they’re protecting the environment while they’re in the process of destroying it. It also means that only strong organised implacable challenge is likely to have any effect – there is a small ray of hope in the success of mobilised public opinion against mining in protected conservation areas, but whether that kind of mobilisation can be raised against fossil fuels remains to be seen.

It may be worth noting that another columnist this week found reason to sound more upbeat, though certainly not about his own country. Thomas Friedman, writing in the New York Times, lamented the failure of the US senate to pass the energy-climate bill but pointed to the seriousness with which Chinese Communists were by contrast tackling the climate change issue and turning it into an opportunity for the development of clean technologies.  Friedman is inclined to optimism, as was apparent in his book Hot, Flat and Crowded, but he provides some basis for it in the case of China.

He quotes Peggy Liu, chairwoman of the Joint U.S.-China Collaboration on Clean Energy, a nonprofit group working to accelerate the greening of China.

“China’s leaders are mostly engineers and scientists, so they don’t waste time questioning scientific data…China is changing from the factory of the world to the clean-tech laboratory of the world. It has the unique ability to pit low-cost capital with large-scale experiments to find models that work.”

Friedman points to the way China has designated and invested in pilot cities for electric vehicles, smart grids, LED lighting, rural biomass and low-carbon communities.

It’s perhaps not much to pin hopes on, especially as coal continues to be used for much new power generation in China. But it may well yet be the case that burgeoning clean technologies will take us further than politicians can. In my inbox this morning was information from the Earth Policy Institute on the continuing rapid growth of solar photovoltaic cell production, described as the world’s fastest-growing power technology. China, Japan and Taiwan are the leading manufacturers. The writer acknowledges that it remains more expensive than fossil fuel-generated power, but points out that its costs are declining rapidly. If fossil fuels ceased to receive subsidies and were required to incorporate their currently externalised costs their relative cheapness would be exposed as only apparent.

Which is good reason to argue in New Zealand for more even-handed government investment in renewables by comparison with fossil fuel extraction. The absurdity of offering so much support for fossil fuels and so little for the green technologies on which our future, if we have one, will depend might be realised by some in our government if we keep on insisting. But it remains a hard slog.

[Cream]