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‘Tremendous loss’ of ice reinforces clear downward trend towards ice-free summers due to effects of climate change

Arctic sea ice this summer shrank to its second lowest level since scientists started to monitor it by satellite, with scientists saying it is another ominous signal of global warming.

The National Snow and Ice Data Center in Colorado said the sea ice reached its summer low point on Saturday, extending 4.14m sq km (1.6m sq miles). That’s behind only the mark set in 2012, 3.39m sq km.

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Paula Kahumbu: The latest satellite tracking technology is helping to keep elephants safe from poachers— and away from farmers’ crops

On a beautiful sunny day in Amboseli National Park, against the backdrop of snow-capped Mount Kilimanjaro, a small group of cars was gathered at a safe distance around the prostrate bull elephant. The elephant lay still in the dust, head on the ground, his enormous tusks and trunk stretched out in front of him. Tension rose among the onlookers as the minutes passed.

Then the huge elephant flapped his ear, got up gently, shook his head vigorously in a vain attempt to dislodge the strange object around his neck, and walked off. We all breathed a sigh of relief. The operation to attach a tracking collar to Tim had gone perfectly.

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Parrtjima festival will see art beamed onto a 2.5km area of the MacDonnell Ranges, raising concerns for a struggling species

Concerns that a light festival in central Australia could affect a vulnerable population of rock wallaby has led to more than a thousand people signing a petition calling for it to be stopped, and to the federal Department of the Environment and Energy examining the festival’s plans.

Parrtjima – A Festival in Light is planned to go for 10 days at the end of September. Each night a four-hour light show will project Indigenous art onto a 2.5km stretch of cliff in the MacDonnell Ranges.

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Local entrepreneur Jenny Paradiso has just been named as a finalist in the 2016 Telstra Business Women’s Awards in South Australia.

The recent battles over the budget of the Australian Renewable Energy Agency (ARENA), and before that over the size of the Renewable Energy Target, are the latest skirmishes in a long-running war over support for technologies that harvest Australia’s abundant wind and solar resources.

Perhaps surprisingly, the conflict even predates the popular awareness of climate change, which is generally dated to 1988.

UNSW Australia’s Mark Diesendorf has described how in early 1983 he and his colleagues had identified an ideal site in northern Tasmania for a wind farm. They presented their proposal to Labor’s newly appointed resources minister, Peter Walsh.

We submitted a proposal that the federal government fund a demonstration wind farm and assist in establishing a local wind generator manufacturing industry in the region, which was suffering from high unemployment. The next day, Senator Walsh announced that a northwest Tasmanian wind energy project could be a part of a development package, if the Commonwealth was successful in the High Court challenge to the construction of the Gordon-below-Franklin dam.

The Commonwealth won its High Court battle, but the wind industry did not get its windfall. As Diesendorf recalls:

The federal government did not implement our proposal. It was soon obvious that the coal lobby, which was already very strong in the Department of Resources, had succeeded in turning the minister against wind power.

At the same time, CSIRO, a world leader in several areas of renewables, closed down all of its renewable energy research. In Diesendorf’s view this was brought on by “powerful coal and nuclear energy interests within the CSIRO". In the absence of deathbed confessions by those who made the decisions, Diesendorf’s suspicions can’t be proved correct, but renewables did indeed disappear from CSIRO’s research agenda and annual reports from that time.

Once climate change hit the headlines, things changed – a little. In 1990 the Hawke government established the Energy Research and Development Corporation (ERDC) and launched a National Energy Efficiency Program. Meanwhile, research commissioned by the Victorian government found that renewable energy, paired with energy-efficiency measures, could save A$3.14 billion a year by 2005, create almost 14,000 jobs, boost economic productivity by A$800 million a year, and cut greenhouse emissions into the bargain.

But privatisation took hold in Victoria, and the Keating government in Canberra seemed indifferent at best. In 1994, green groups including the Australian Conservation Foundation called for a carbon levy to provide funds for renewable energy. Their request was ignored.

Renewables back on target

In 1996 the new Howard government disbanded Bob Hawke’s ERDC and energy efficiency program. In late 1997, in the run-up to the Kyoto climate summit, John Howard announced a new Renewable Energy Target (RET).

Greens leader Bob Brown was underwhelmed. He pointed out that the scheme’s A$65 million over five years was less than the A$75 million that had been axed the year before, while the target of an extra 2% of electricity from renewables (making a total of 11% including existing large-scale hydro electricity generation) fell short of the ambition shown by other nations. Britain, for instance, was aiming for 20% by 2010.

The RET finally came into place in 2001, after the fossil fuel lobby succeeded in getting it watered down, and was subjected to constant reviews.

Infamously, at a secret meeting whose minutes were leaked, the then energy minister, Ian MacFarlane, lamented to the chief executives of companies like BHP and Rio that the RET was working too well – renewables were growing too fast.

In the run-up to the 2004 Energy White Paper, the renewables industry had hired well-connected lobby firm Crosby Textor (yes, Crosby as in Lynton Crosby) in a bid to get the RET raised to as much as 10%.

According to Age journalist Richard Baker, a Liberal backbencher warned the renewables advocates that “you guys are stuffed". And so it came to pass – the white paper spruiked carbon capture and storage, not renewables.

In the white paper’s aftermath, CSIRO boss Geoff Garrett announced that the organisation would be reducing its renewables research and instead focusing on “clean coal” technologies such as coal gasification and carbon capture and storage.

Months later, a draft copy of an August 2005 CSIRO report describing solar thermal technology as “the only renewable technology that can make deep cuts in greenhouse emissions” was leaked to The Canberra Times. Before the leak, sources claimed the report had been “passed around like a political hot potato” with no date set for its release. It was eventually released to the public later that year.

Bloody public battles

Since 2007 the battles have been more public and even bloodier. An attempt to harmonise (and perhaps increase) different state and federal targets (all with different baselines, target years and amounts) was a dispiriting process. This was due in part, it seems, to federal bureaucratic intransigence and arrogance.

The major changes have been an increase in the renewables target, split into large-scale (wind farms, solar farms and the like) and small-scale (mostly rooftop solar). That increased target was of course subjected to significant watering down by the Abbott government.

Meanwhile, the two agencies that were set up to support renewable energy have also come under attack. The Greens, whose support was a life-and-death issue for the Gillard government, had managed to insist on the creation of ARENA and the Clean Energy Finance Corporation.

Between them, these two organisations were designed to ensure funding both for basic research and development and for commercialisation of the resulting technologies, thereby smoothing the path for renewables to enter the electricity sector.

The attacks on these organisations have helped create investor uncertainty in renewables. Efforts to close them down ultimately failed, so the Abbott government switched to changing their terms of reference. The Turnbull government has continued this, along with salami-slicing ARENA’s budget.

This investment uncertainty, deliberately created, is a kind of “divestment campaign” against renewables. It can also be seen as a way of provoking an “investment strike”.

Whereas the mining industry threatened to take its investment dollars elsewhere while fighting Kevin Rudd’s proposed Resources Super-profits Tax in 2010, in this case, the supporters of the status quo energy system are hoping to dissuade external investors from coming to Australia. Thus do incumbents defend their patch.

Australia is famously the “lucky country”. But of course, Donald Horne meant it ironically, believing that the country was richly endowed with resources but “run mainly by second-rate people who share its luck”.

Given what we know of the trajectory and probable impacts of climate change, nobody, surely, will be able to be claim surprise as the future arrives.

Marc Hudson does not work for, consult, own shares in or receive funding from any company or organisation that would benefit from this article, and has disclosed no relevant affiliations beyond the academic appointment above.

Stanton Moor, Derbyshire A landscape seamed with neolithic stone circles and burial sites made this one of Britain’s first official ancient monuments

There’s a dog-eared feel to Stanton Moor, but in a good way. It’s a much loved scrap of high country between Bakewell and Matlock, sacred ground in the neolithic and bronze ages, its geomantic potency derived from long views and its proximity to the confluence of the rivers Derwent and Wye. And it’s fairly sacred even now, after a fashion.

Related: Country diary: Langsett, Peak District

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The Earth’s last intact wilderness areas are shrinking dramatically. In a recently published paper we showed that the world has lost 3.3 million square kilometres of wilderness (around 10% of the total wilderness area) since 1993. Hardest hit were South America, which has experienced a 30% wilderness loss, and Africa, which has lost 14%.

These areas are the final strongholds for endangered biodiversity. They are also essential for sustaining complex ecosystem processes at a regional and planetary scale. Finally, wilderness areas are home to, and provide livelihoods for, indigenous peoples, including many of the world’s most politically and economically marginalised communities.

James Watson and James Allan explain their recent research.

But there’s another important service that many wilderness areas provide: they store vast amounts of carbon. If we’re to meet our international climate commitments, it is essential that we preserve these vital areas.

Many of the world’s biological realms now contain very low levels of wilderness. www.greenfiresciene.com Climate consequences

Large, intact ecosystems store more terrestrial carbon than disturbed and degraded ones. They are also far more resilient to disturbances such as rapid climate change and fire.

For instance, the boreal forest remains the largest ecosystem undisturbed by humans. It stores roughly a third of the world’s terrestrial carbon.

Yet this globally significant wilderness area is increasingly threatened by forestry, oil and gas exploration, human-lit fires and climate change. These collectively threaten a biome-wide depletion of its carbon stocks, considerably worsening global warming. Our research shows that more than 320,000sqkm of boreal forest has been lost in the past two decades.

Similarly, in Borneo and Sumatra in 1997, human-lit fires razed recently logged forests that housed large carbon stores. This released billions of tonnes of carbon, which some estimate was equivalent to 40% of annual global emissions from fossil fuels. We found that more than 30% of tropical forest wilderness was lost since the early 1990s, with only 270,000sqkm left on the planet.

Deforestation of Sumatra’s lowland rainforest. Bill Laurance How do we stop the loss?

All nations need to step up and mobilise conservation investments that can help protect vanishing wilderness areas. These efforts will vary based on the specific circumstances of different nations. But there is a clear priority everywhere to focus on halting current threats – including road expansion, destructive mining, unsustainable forestry and large-scale agriculture – and enforcing existing legal frameworks.

For example, most of the world’s remaining tropical rainforests are under an onslaught of development pressures. Much of sub-Saharan Africa is being opened up by over 50,000km of planned “development corridors” that criss-cross the continent. These will slice deep into remaining wild places.

In the Amazon, plans are being made to construct more than 300 large hydroelectric dams across the basin. Each dam will require networks of new roads for dam and powerline construction and maintenance.

In northern Australia, schemes are afoot to transform the largest savannah on Earth into a food bowl, jeopardising its extensive carbon stores and biodiversity.

We need to enforce existing regulatory frameworks aimed at protecting imperilled species and ecosystems. We also need to develop new conservation policies that provide land stewards with incentives to protect intact ecosystems. These must be implemented at a large scale.

For example, conservation interventions in and around imperilled wilderness landscapes should include creating large protected areas, establishing mega-corridors between those protected areas, and enabling indigenous communities to establish community conservation reserves.

In Sabah, Borneo, scientists from the UK’s Royal Society have been working with local government to establish networks of interlinked reserves stretching from the coast to the interior mountains. This provides a haven for wildlife that migrate seasonally to find new food sources.

Funding could also be used to establish ecosystem projects that recognise the direct and indirect economic values that intact landscapes supply. These include providing a secure source of fresh water, reducing disaster risks and storing vast quantities of carbon.

For example, in Ecuador and Costa Rica, cloud forests are being protected to provide cities below with a year-round source of clean water. In Madagascar, carbon funding is saving one of the most biodiversity-rich tropical forests on the planet, the Makira forest.

We argue for immediate, proactive action to protect the world’s remaining wilderness areas, because the alarming loss of these lands results in significant and irreversible harm for nature and humans. Protecting the world’s last wild places is a cost-effective conservation investment and the only way to ensure that some semblance of intact nature survives for the benefit of future generations.

James Watson receives funding from Australian Research Council. He is the Director of Science and Research Initiative at the Wildlife Conservation Society.

Bill Laurance receives funding from the Australian Research Council and other scientific and philanthropic organisations. He is the director of the JCU Centre for Tropical Environmental and Sustainability Science, and founder and director of ALERT--the Alliance of Leading Environmental Researchers & Thinkers.

Brendan Mackey receives funding from the Australian Research Council

James Allan does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond the academic appointment above.

City of Port Phillip to save $44,000/year on electricity costs with installation of 172kW solar on the roof of St Kilda Town Hall.

Regulator report into SA high price event shows generators have a new way to exploit their market power, underling the case for rule changes.

Solar storage developer says it would be a shame if Australian authorities "doubled down" on gas, and missed the opportunity to introduce new technologies that could lower prices, boost jobs, and accelerate clean energy transition.

According to the Victorian pricing authority – yes they are. But is this a “market failure” that justifies regulatory intervention, or are we missing something?

Some of the winning images from this year's competition.

Choosing renewables means negotiating a series of technical and regulatory issues at a scale never before attempted in Australia. But if anyone can do it...

Nathan is a passionate home owner and client advocate in sustainable design and construction. Completed a Diploma in Sustainability and is keen to champion the fight for sustainable living.

The project is a single storey mixed construction building (comprising some lightweight and reverse masonry veneer construction) on concrete slab with skillion roofs. Home Components: Polished concrete to all rooms except bedrooms which are carpeted | In slab hydronic heating with slab-edge insulation | Double Glazed windows with UPVC frames |4 KW PV system | 10800L rainwater tanks | Solar domestic Hot Water | Retractable shade to western courtyard

Sustainable House Day Showcase Collaborators
Event Partner:
Recycled Interiors & Sustainable Home Hub - recycledinteriors.org

Event Sponsors:
City of Adelaide - adelaidecitycouncil.com
Sustainability House - sustainabilityhouse.com.au
Brocante in the Barossa - brocante-in-the-barossa.com
Hills Sustainable Gardens - hillssustainablegardens.com
Accumulus Energy Group - accumuluseg.com

Media Partner:
Environmental & Science Media - esmedia.com.au

Cast: AdelaideSBN and ESM

Tags: Sustainable Living, Sustainable Design, Sustainability, Green Homes, Australia and Adelaide

After turning its back on solar, the UK government has put its eggs in the nuclear basket, approving two new reactors – a $A31.7bn project.

CHANGING GALAXY: An international team of astronomers has cracked the case of a mysterious galaxy that has suddenly dimmed after shining brightly for 30 years.

The Guardian newspaper recently hit a wall of non-response when it raised concerns about the possibility of an oil well blowout in BP’s proposed drilling operations in the Great Australian Bight.

The facts are that bolts on drilling rigs used in other parts of the world have been found to be defective, with the potential to fail catastrophically. When asked whether its operations were at similar risk, BP referred The Guardian to its subcontractor, Diamond Offshore, which reportedly failed to respond to emails and phone calls.

Whether or not these technical concerns are justified, this is a public relations disaster for BP, Diamond Offshore and even for the Australian industry regulator, the National Offshore Petroleum Safety and Environmental Management Authority.

BP, in particular, can ill afford such bad publicity. Six years ago it suffered a disastrous blowout of its Macondo well in the Gulf of Mexico, which killed 11 men and caused more than US$40 billion of environmental damage along the US coast.

It’s perfectly understandable that people will ask whether the same thing can happen in the Great Australian Bight.

Lessons learnt?

BP claims to have learnt the lessons from the Gulf of Mexico incident, and to have incorporated them in its drilling plan for the Bight (as outlined in section 6 of its environmental overview). However, the lessons it refers to are drawn from its own report on the accident, which dealt primarily with technical issues rather than the underpinning organisational factors.

Other major reports and commentary have identified a range of organisational failures that contributed to the blowout. BP has not shown that it has learnt these bigger lessons.

One of these organisational causes was the system of bonus payments made to employees at all levels, which created continual pressure to minimise costs and maximise drilling speeds. A key performance indicator when calculating employee bonuses was “days per 10,000 feet of well drilled”.

These incentives generated pressure to ignore anomalies or warnings that things might be amiss, and to just get on with the job. Of course, BP is not alone in this – these are industry-wide practices. But to satisfy a sceptical public, BP needs to show that it has addressed this issue.

Second, BP was using the wrong indicators of risk, which meant that it was systematically misleading itself and others about the risk of blowout at the Macondo well.

Its primary indicator was the number of cases of “loss of containment” – that is, incidents when oil was spilled into the sea from a hydraulic hose or other piece of equipment. Of course these spills are environmentally undesirable, but the number of these relatively minor incidents does not in itself indicate a risk that the well will blow.

Far more significant is the number of “kicks” – incidents in which operators temporarily lose control of the well and high-pressure fluids begin forcing their way towards the surface. If operators do not act quickly to control kicks, they can develop into blowouts, and indeed this was one of the contributing factors in the Gulf of Mexico blowout.

Here is another relevant indicator. Drilling wells involves pumping cement down at various times to seal joints, and to plug the bottom of the well when drilling is complete but the well is yet to begin production. Cementing jobs sometimes fail, and in fact the regulator in the Gulf of Mexico found that half of all blowouts were initiated by a cementing failure.

The number of cementing failures would therefore seem to be an important indicator of risk. BP again needs to show it has developed a list of key risk indicators for its proposed drilling operations in the Bight, and that things such as employee bonuses will not work to counteract this system.

Bending the rules

One of the most insidious processes that contributes to many major accidents is the “normalisation” of substandard practices. Typically, this happens when people start taking shortcuts with no penalty, which gives the impression that strict compliance with safety regulations or standard engineering practices is unnecessary. Eventually, however, an unusual set of circumstances may catch them out.

Some companies have a formal process for authorising deviations from the standard practice, in cases where strict compliance seems unnecessary or onerous. In isolation, such deviations may seem to involve a negligible increase in risk, but if the number of such authorisations is not controlled, the cumulative increase in risk may be considerable.

After the Gulf of Mexico disaster, BP itself proposed that the number of authorised deviations from approved engineering practices be treated as an indicator of risk, and that this number should be kept as low as possible. It would be good to know if this principle will be applied to its drilling activities in the Bight.

Another critical lesson from the Gulf of Mexico spill is that senior managers should ask the right questions when they visit operational sites, as they routinely do. Senior managers were actually touring the rig that was drilling the Macondo well at the time of the blowout. But they failed to ask any questions about how well the rig was controlling the blowout risk. Had they done so, the accident might never have happened. Has BP learnt that lesson? It is not one that was identified in its own report, so we cannot be sure.

Accident prevention depends on understanding and counteracting the human and organisational factors that lead to accidents, as well as the technical ones. The documents that BP has publicly released about how it intends to drill in the Bight describe how it has learnt the technical lessons, but are silent on the human and organisational lessons.

Spelling out these lessons, and whether BP really has learnt them, might give the public more confidence in the drilling proposal.

Andrew Hopkins is the author of Disastrous Decisions: The Human and Organisational Causes of the Gulf of Mexico Blowout_.

Andrew Hopkins is the author of a recent article published by (but not funded by) the Australia Institute, titled "From climate pariah to climate saviour? What the petroleum industry can do about climate change".

Can Kangaroo Island's pioneering spirit be harnessed in the push for renewable energy? Dider B/Wikimedia Commons, CC BY

South Australia’s iconic Kangaroo Island, the site of Australia’s first free settled colony, could pioneer a new age of renewable energy, according to our new research.

The first hardy settlers in 1836 had to decide whether to go it alone with a settlement on the island or revert to the mainland. Today, the 4,400 or so people who call the island home face a similarly stark choice: energy independence, or continued reliance on the mainland.

On one hand, the ageing existing cable could simply be replaced, at a cost of between A$22 million and A$50 million. This is the “preferred network option” proposed by the local electricity distribution network, SA Power Networks (SAPN).

On the other hand, SAPN is also currently considering an alternative mix of local wind, solar and biomass generation, complemented by diesel generation, battery storage and demand management.

Simple vs smart?

The new cable option is straightforward and well understood, if a little uninspiring. The local renewable power supply option means energy independence, more local investment and economic activity, and a boost for the tourist mecca’s clean, green brand. But it also requires solutions to a series of tricky technical and regulatory issues, at a scale never before attempted in Australia.

To help inform this crucial decision by SAPN and the Kangaroo Island community, I and my colleagues at the Institute for Sustainable Futures (ISF) at the University of Technology Sydney yesterday published a study of the feasibility of renewable energy for the island.

We conclude that Kangaroo Island could be powered by 86-100% renewable energy for about the same cost as replacing the cable to the mainland.

We examined ten different electricity supply scenarios for Kangaroo Island. The direct costs of the three most interesting scenarios are shown below.

Kangaroo Island electricity supply scenarios: direct costs (net present value over 25 years). Institute for Sustainable Futures

The most cost-effective alternative to a new cable is local supply of wind, solar photovoltaics and diesel generation, complemented by battery storage and “demand management”. This hybrid solution could supply the island with 86% renewable energy for only A$10 million more than a new cable option. This option would also meet SAPN’s tight deadline of being able to meet the island’s entire electricity demand by December 2018.

For a further A$13 million, 100% renewable power could be provided by displacing the diesel with biomass generation technology fuelled by local, currently unharvested plantation wood. We estimate that this system could be established within five years.

Both the hybrid and 100% renewable options could actually cost Kangaroo Islanders less than the new cable over a 25-year period, if we factor in indirect impacts such as savings in local network charges.

Kangaroo Island electricity supply scenarios: direct and indirect costs (net present value over 25 years). Institute for Sustainable Futures

So with the cost of the different options roughly comparable, the choice of power supply will probably depend on other factors. These include the preferences of the local community; how the costs, benefits and risks are shared; and the level of support from key stakeholders including SAPN, government and regulators.

For local generation to be cost-competitive, SAPN’s funds earmarked for the new cable would need to be redirected to support local generation and demand management. However, the current regulatory system creates barriers to SAPN providing this support.

For example, SAPN can earn a net financial return on investment in network assets such as a new undersea cable over their 30-40-year life. But if, instead of investing in a new network asset, SAPN spends money on supporting local supply options, then at best it can only retain a few years' savings by deferring capital investment.

Another challenge for local electricity supply is ensuring that local electricity suppliers do not abuse their monopoly by price-gouging customers if and when the existing cable eventually fails. Two possible ways to guard against this are by sharing community ownership of generation assets, and by periodic tendering of retail services.

For a local electricity supply solution to proceed it requires strong support, from both the Kangaroo Island community and SAPN. It would also require a major third party, such as the SA Government or the Australian Energy Regulator, to help reduce the barriers to SAPN adopting a more innovative non-network solution.

Renewable future

A balanced local electricity supply solution and a transition to 100% renewable power could deliver a range of economic development and other benefits to the local community. But it will require market testing to confirm the costs, and stakeholder and community consultation to develop a suitable regulatory and business model.

It is unclear who would provide the time and resources for such leadership, but the SA Government and the Kangaroo Island Council are two possible candidates.

Addressing such barriers in the context of Kangaroo Island would provide not just an inspiring local solution, but a powerful precedent for supporting local renewable energy initiatives throughout Australia.

Within months of their arrival in 1836, most of the original Kangaroo Island settlers had left to set up the new mainland colony of South Australia. But a few enterprising souls stayed on. We will soon see if that pioneering Kangaroo Island spirit prevails when it comes carving out Australia’s clean energy future.

A community forum will be held on September 22 in Kingscote, Kangaroo Island, to share the study’s findings and canvass community views about future power supply options.

Chris Dunstan is a Research Director at the Institute for Sustainable Futures (ISF) at the University of Technology Sydney. ISF undertakes paid sustainability research for a wide range of government, corporate and NGO clients. The Towards 100% Renewable Energy for Kangaroo Island study was funded by ARENA and RenewablesSA with assistance from the Kangaroo Island Council.

Exclusive: Bob Bea, who investigated Deepwater Horizon, blasts BP and Australian regulators, calling their response to concerns about faulty equipment an ‘early warning sign’ of a potential disaster

A leading global expert on oil disasters has said the response to concerns about potentially faulty equipment in offshore drilling planned for the Great Australian Bight by BP is an early warning sign of problems that could potentially lead to disasters.

Bob Bea, an emeritus professor and founder of the center for catastrophic risk management at Berkeley, said what BP, its subcontractor Diamond Offshore Drilling and the Australian regulator had said in response to concerns about faulty bolts was “very alarming”.

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Arctic ice cover in 2016 reached the second lowest minimum on record, tied with 2007.