Feed aggregator

The obscure and difficult to reach tracts of the seabed being claimed in the hope they contain mineral riches.

A group of the world's Ocean Elders led by marine biologist Dr. Sylvia Earle has written to Prime Minister Malcolm Turnbull calling on him to stop the Adani coal mine to demonstrate climate leadership and help save the Great Barrier Reef.

World’s largest banks lent $87bn to oil, coal and LNG companies in 2016 – a 22% drop from a collective $111bn worth of lending in 2015

The world’s biggest banks have reduced their lending to some of the most carbon-intensive sectors of the fossil fuel industry by billions of dollars, marking a potentially seismic shift against coal investment, a new study says.

The report commissioned by environmental groups tracked the lending decisions of 37 banks across Australia, the US, Europe, Canada, China and Japan in the first calendar year since the signing of the Paris climate agreement.

Continue reading...

Australia is renowned worldwide for our venomous and poisonous creatures, from snakes, spiders and ticks on land, to lethal jellyfish, stingrays and stonefish in our waters. Even the shy platypus can inflict excruciating pain if handled without due care.

Yet while injuries and deaths caused by venomous snakes and jellyfish are often sensationalised in the media, and feared by international visitors, a recent review found that very few “deadly” Australian animals actually cause deaths. Between 2000 and 2013, there were two fatalities per year from snake bites across Australia, while the average for bee stings was 2.2 and for jellyfish 0.25, or one death every four years. For spiders – including our notorious redbacks and Sydney funnel-webs – the average was zero.

Snakes nevertheless strike fear into many people who live in or visit Australia. When we have a higher risk of injury or death from burns, horses, bee stings, drownings and car accidents, why don’t we fear these hazards as we do the sight of a snake?

Snakes and statistics through history James Bray, Venomous and Non-Venomous Reptiles (1897). State Library of NSW/Peter Hobbins

When settlers arrived in Australia in the late 18th century, they believed that Australian snakes were harmless. By 1805 it was accepted that local serpents might kill humans, but they were hardly feared in the same way as the American rattlesnake or Indian cobra.

Until the 1820s, less than one human death from snake bite was recorded each year; in 1827 visiting surgeon Peter Cunningham remarked that:

…comparatively few deaths [have] taken place from this cause since the foundation of the colony.

Similar observations were made into the 1840s. What the colonists did note, however, was the significant death toll among their “exotic” imported animals, from cats and sheep to highly valuable horses and oxen.

By the 1850s, living experiments in domestic creatures – especially chickens and dogs – were standard fare for travelling antidote sellers. Given the popularity of these public snake bite demonstrations, from the 1860s, doctors and naturalists also took to experimenting with captive animals. It was during this period that official statistics on deaths began to be collated across the Australian colonies.

One sample from 1864–74, for instance, reported an average of four snake bite deaths per year across Victoria, or one death per 175,000 colonists. In contrast, during the same period one in 6,000 Indians died from snake bites each year; little wonder that around the world, Australian snakes were considered trifling.

The 1890s represented a dramatic period of divergence, though. On one hand, statistical studies in 1882–92 suggested that on average, 11 people died annually from snake bite across Australia. Similar data compiled in Victoria led physician James Barrett to declare in 1892 that snakes posed “one of the most insignificant causes of death in our midst”. On the other hand, by 1895 standardised laboratory studies, aimed especially at producing an effective antivenom, saw a global recognition that Australian snake venoms were among the most potent in the world.

In Sydney, physiologist Charles Martin claimed that Australian tiger snake venom was as powerful as that of the cobra. In 1902, his collaborator Frank Tidswell ranked local tiger snake, brown snake and death adder venoms at the top of the global toxicity table.

Over the ensuing century, this paradox has remained: why do so few Australians die from snake bites when our serpents have the world’s most potent venoms? Why aren’t they more deadly?

Deadly fear

Scientific research has delivered ever-expanding knowledge about venoms, what they do, how they work, how they affect us clinically, and their comparative “potency” based on animal studies. In response we have introduced first aid measures, guidelines, effective clinical management and treatment, which in Australia forms one of the world’s best emergency health care systems.

In contrast, countries where snakebites cause far more deaths generally face challenges in accessing affordable essential medicines, prevention and education options.

Snakes form an essential part of their ecosystems. They do not “attack” humans, mostly being shy animals, but are defensive and prefer to escape.

It would seem that venom potency is not a good measure of deadliness, and it may be a combination of our history, behaviour and belief that creates a cultural fear.

Without understating the potential danger posed by venomous snakes, what we offer instead is reassurance. As nearly two centuries of statistics and clinical experience suggest, most snake bites in Australia are survivable, if managed quickly, calmly and effectively. In fact, encounters with humans all too often prove deadly to the snakes themselves – a paradox that is within our power to change.

The authors are presenting on this topic at the upcoming Emerging Issues in Science and Society event at Deakin University’s Downtown campus on 6 July 2017. Sponsored by the Australian Academy of Science and Deakin University’s Science and Society Network.

The event brings together scientists with humanities and social science scholars to discuss common questions from different angles. For more information on the event and to book tickets see the event’s website.

Ronelle Welton receives funding from the NHMRC.

Peter Hobbins received an Australian Postgraduate Award to undertake his PhD on the subject of snakebite in colonial Australia, and was the 2016 Merewether Fellow at the State Library of New South Wales, which entailed research on a similar topic.

Prominent oceanographers and global leaders write to Australian prime minister and Queensland premier

A group of prominent oceanographers and global leaders headed by renowned marine biologist Dr Sylvia Earle has written to the Australian prime minister, Malcolm Turnbull, urging him to reject the proposed Adani Carmichael coalmine, which it says will have a devastating impact on the Great Barrier Reef.

The letter from the group Ocean Elders argues that if it goes ahead, the coalmine will damage international efforts to mitigate climate change by increasing global carbon emissions.

Continue reading...

Climate change | Inflammatory language | Plagiarism | The cryptic crossword | North-south divide

Normally I would write to complain about such a gendered phrase as “man-made” (Opinion, 17 June). In the case of “man-made climate change” however, I’m inclined to let it pass. On balance it seems likely that rather more men than women do bear responsibility for the changes which are leading our planet to fry. “Anthropogenic” is a much more elegant word though.
Sylvia Rose
Totnes, Devon

• Virginia Cumming (Letters, 21 June) calls out the Daily Mail for inflammatory language. On page 25, Aditya Chakrabortty declares that “Britain still murders its poor” (Opinion, 21 June) Mote and Beam?
J Moorhead
Gorstage, Cheshire

Continue reading...

Analysis of world’s lenders reveals many claim green credentials while still financing fuels like tar sands, oil and coal

Some of the world’s top banks are continuing to lend tens of billions for extracting the most carbon-intensive fossil fuels, according to a report of top lenders.

Finance provided for these fossil fuels – tar sands and other unconventional oil and gas, as well as coal and liquefied natural gas – amounted to $87bn for the top 37 banks in 2016. That represented a slump of more than a fifth compared with the $111bn raised the previous year, and was also down on 2014’s total of $92bn.

Continue reading...

Former US vice-president says green revolution is bigger than industrial revolution and happening at faster pace than digital revolution

The fight against global warming is one of humanity’s great moral movements, alongside the abolition of slavery, the defeat of apartheid, votes for women and gay rights, according to the former US vice-president and climate campaigner, Al Gore.

The battle to halt climate change can be won, he said, because the green revolution delivering clean energy is both bigger than the industrial revolution and happening faster than the digital revolution.

Continue reading...

A government plan to protect the UK's £13.7bn space industry has been laid out in the Queen's Speech.

On behalf of students and alumni from all Ivy-Plus universities, we call on our institutions to join the “We Are Still In” coalition

America’s top universities expend considerable efforts to lead in the rankings, but last week they fell short—missing a critical opportunity to show moral leadership on climate change. If top schools want to lead on climate action, they should join the “We Are Still In” coalition, a collection of states, cities, businesses, and universities promising to support the Paris Climate Agreement.

President Trump’s decision to pull out of the international climate accord was swiftly rejected by local and state officials, as well as members of the business and academic community. Over 1,000 leaders have signed on to the “We Are Still In” pledge—including mayors and governors representing about 120 million people. More than 200 colleges and universities have joined. Leadership from these institutions sends a powerful message to President Trump and the globe: even if the federal government reneges on its international commitments, Americans are stepping up to fill the gap.

Continue reading...

Once known as the ‘city of lakes’, urban sprawl has destroyed 85% of Bangalore’s rivers and lakes, while pollution has ruined much of what remains. Like many residents, Lakshmi and her mother struggle to find clean water

Continue reading...

A new report warns global warming will drive increasingly severe humanitarian crises, forced migration, political instability and conflict in the Asia-Pacific and world.

Lethal risks of extreme weather are under-reported and government must stop cutting public awareness funds

Hundreds of people across the UK are likely to be killed by a natural disaster this week, but their deaths will not be the subject of ministerial statements or newspaper reports, even though a failure of government policy is partly responsible.

The heatwave conditions are causing preventable deaths partly because large swaths of the population wrongly believe that extremely hot days are becoming less common.

Continue reading...

In echo of ‘defeat device’ scandals, one TV increased energy consumption by 47% when tested in real-world viewing

TVs, dishwashers and fridge freezers have been found to guzzle up to twice as much energy as advertised on their energy labels, in a wide-ranging EU product survey.

When tested under real-world conditions, the €400,000, 18-month investigation found widespread overshooting of the goods’ colour-coded A-G energy classes, due to the outmoded and selective test formats on which these have been based.

Continue reading...

Getting your strata committee to agree to solar panels is tricky, but it can be done. Stucco, Author provided

While there are now more solar panels in Australia than people, the many Australians who live in apartments have largely been locked out of this solar revolution by a minefield of red tape and potentially uninformed strata committees.

In the face of these challenges, Stucco, a small co-operative housing block in Sydney, embarked on a mission to take back the power. Hopefully their experiences can serve as a guide to how other apartment-dwellers can more readily go solar.

From an energy perspective, Stucco was a typical apartment block: each of its eight units had its own connection to the grid and was free to choose its own retailer, but was severely impeded from choosing to supply itself with on-site renewable energy.

Things changed in late 2015 when the co-op was awarded an Innovation Grant from the City of Sydney with a view to becoming the first apartment block in Australia to be equipped with solar and batteries.

A central part of Stucco’s plan was to share the locally produced renewable energy by converting the building into an “embedded network”, whereby the building has a single grid connection and manages the metering and billing of units internally.

Such a conversion seemed like an ideal solution for solar on apartments, but turned into an ideological battle with the electricity regulator that took months and hundreds of hours of pro bono legal support to resolve.

Layout of Stucco as solar powered embedded network. Sonia Millway

In this way the Stucco project grew to embody the struggle at the heart of the Australian electricity market: a battle between choice and control, between current regulations that mandate consumers to choose between incumbent retailers, and the public’s aspirations for green self-sufficiency.

A chicken and egg problem

Embedded networks have been around for decades. Yet if the Australian Energy Regulator had its way, they would be banned as soon as possible.

The reason for this is that they inhibit consumers’ choice of retailer: consumers are forced to buy their electricity from the building’s embedded network management company, which may exploit its monopoly power.

Yet it doesn’t have to be this way. At least one company in Germany allows apartment residents to buy power either from their preferred grid retailer or from the building’s solar-powered embedded network. This business model relies on Germany’s smart meter standards that ensure all market participants can access the data they require.

We currently find ourselves in a standoff. The regulator is waiting on companies to offer solar powered embedded networks that include retail competition, while companies are waiting on the regulator to create an accessible playing field that would make such services viable.

The recently released Finkel Report touches on this by recommending a “review of the regulation of individual power systems and microgrids”.

Stucco members celebrating signing the installation contract with Solaray. Monique Duggan Stucco’s bespoke solution

In the absence of such a solution, Stucco made a unique agreement with the regulator: the co-op committed to cover fully the costs of installing a grid meter for any unit whose occupant wishes to exit the embedded network in the future.

Such a commitment was feasible because Stucco’s residents, as co-op members, have direct input into the management of the network including controlling prices (that are mandated to be cheaper than any grid offer). But it is difficult to image regular strata committees accepting such liabilities.

Embedded networks are therefore not the best general solution for retrofitting solar on apartments, at least not under current regulations. This is unfortunate because they represent the best utilisation of an apartment block’s solar resource (Stucco’s system provides more than 75% of the building’s electricity) and are therefore increasingly being adopted by developers.

Advice for apartments

The good news for residents of existing apartments is that there are easier routes to installing solar. The even better news is that the cost of solar systems has plummeted (and continues to do so), while retail rates continue to skyrocket, so much so that body corporates are reporting rates of return of 15-20% on their solar investments.

The recommended options for apartments are epitomised by the old adage “keep it simple”. They fall into two categories: a single solar system to power the common area, or multiple smaller systems powering individual units. Which of these is best suited to a particular apartment depends primarily on the building’s size (as a proxy for its energy demand).

Decision tree for solar power on apartments. Bjorn Sturmberg

For buildings with 1 square metre of sunny roof space per 2m² of floor space (typically blocks up three stories high), it is worth installing a solar system for each unit, as these will typically be well matched to unit’s consumption.

Taller buildings (with less sunshine per apartment) are better off installing a single system for the common area, particularly if this contains power-hungry elements such as elevators or heating and cooling systems.

But here’s the crux: no apartment can install solar without the political support of its strata committee. While this hurdle has historically tripped up many initiatives, increased public awareness has created a groundswell of support. Plus you may need fewer votes than you think.

Myth of the Special Resolution. Christine Byrne - Green Strata

To improve the chances of overcoming this barrier I have put together a solar-powered apartment pitch deck, available here.

While this article focuses on solar, it is important to remember that the first priority for any building should be to improve energy efficiency, by installing items such as LED lights, modern appliances, and insulation and draft proofing. For advice on these opportunities see the City of Sydney’s Smart Green Apartments website and the Smart Blocks website.

Lastly, adding batteries to an apartment solar system creates extra challenges, for instance fire-prevention planning. But it allows for far greater energy independence and resilience, and a chance to join the future of distributed energy currently being enjoyed by so many of Australia’s non-strata householders.

Stucco Co-operative’s 43.2 kWh battery system. Bjorn Sturmberg

Bjorn Sturmberg is a founding director of SunTenants Pty Ltd and Kairos Power Pty Ltd. SunTenants is a social enterprise bringing the solar revolution to Australia's rentals (single occupancy, ie non-apartments) and was the basis on which Bjorn was awarded a 2017 Myer Innovation Fellowship. Kairos Power is a boutique engineering and research consultancy specialising in hybrid microgrids and energy markets.

Calstock, Tamar Valley In the woods, leaves obscure all but glimpses of the ebbing river

Dogwoods, covered in flowers with cream bracts, shine from the prevailing green of Cotehele’s valley garden and in the woods leaves obscure all but glimpses of the ebbing river.

Flag iris, water dropwort and reeds slow the flow of the Danescombe tributary into the Tamar and opposite this little delta, beyond the swirling current, two swans feed on the mud bank where “point stuff” – fallen leaves washed into the river – used to be shovelled into rowing boats for use as manure in the market gardens.

Continue reading...

Two very different storage technologies – one old, one new; one that takes years to build, one that can be built ‘within 100 days (or it’s free)’. How else do they differ, and is there a place for both?

Finkel says it clear investors prefer wind and solar because they are cheaper to build than traditional generation such as hydro and coal.

Turnbull's pursuit of "baseload dispatchable" power has all the hallmarks of the Trump administration's campaign against renewables. But data shows that countries with lots of wind and solar have better energy security.

AGL Energy Limited (AGL) today announced that the Board had appointed Graeme Hunt to succeed Jerry Maycock as Chairman following the AGM.