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China-based solar PV manufacturer Trina Solar can no longer call itself the world’s leading solar PV supplier.

Rapid warming trend sees heat records in Australia outnumber cold records by 12 to one over the past decade

The heatwave that engulfed southeastern Australia at the end of last week has seen heat records continue to tumble.

On Saturday 11 February, as New South Wales suffered through the heatwave’s peak, temperatures soared to 47℃ in Richmond, 50km northwest of Sydney, while 87 bushfires raged across the state, amid catastrophic fire conditions.

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Origin Energy CEO says industry investment in renewables needs clarity around Australia's emissions reduction targets.

U.S. solar market nearly doubled its annual record, topping out at 14,626 megawatts of solar PV installed in 2016.

The World Bank has highlighted steps to improve sustainable energy investment.

Australia ranks equal 15th overall in a new World Bank scorecard on sustainable energy. We are tied with five other countries in the tail-end group of wealthy OECD countries – behind Canada and the United States and just one place ahead of China.

Called the Regulatory Indicators for Sustainable Energy (RISE), the initiative provides benchmarks to evaluate clean energy progress, and insights and policy guidance for Australia and other countries.

RISE rates country performance in three areas - renewable energy, energy efficiency, and access to modern energy (excluding advanced countries), using 27 indicators and 80 sub-indicators. These include things like legal frameworks, building codes, and government incentives and policies. The results of the individual indicators are turned into an overall score.

The majority of wealthy countries score well in the scorecard. But when you drill down into the individual areas, the story becomes more complex. The report notes that “about half the countries with more appropriate policy environments for sustainable energy are emerging economies,” for example.

The RISE ranking. RISE report

The report relies on data up to 2015. So it does not account for recent developments such as the Paris climate conference, the Australian National Energy Productivity Plan, the widespread failure to enforce building energy regulations, and the end of Australia’s major industrial Energy Efficiency Opportunities program under the Abbott government.

Furthermore, Australian electricity demand growth has recently re-emerged after five years of decline.

But the World Bank plans to publish updated indicators every two years, so over time the indicators should become a valuable means of tracking and influencing the evolution of global clean energy policy.

Australia

Australia’s ranking masks some good, bad and ugly subtleties. For example, Australia joins Chile and Argentina as the only OECD high-income countries without some form of carbon pricing mechanism. Even the United States, whose EPA uses a “social cost of carbon” in regulatory action, and has pricing schemes in some states, meets the RISE criteria.

Australia also ranks lower than the United States for renewable energy policy, at 24th. This is due to scoring poorly in incentives and regulatory support, carbon pricing, and mechanisms supporting network connection and appropriate pricing. But we are saved somewhat by having a legal framework for renewables, and strong management of counter-party risk. It’s not clear how recent political uncertainty, and the resulting temporary collapse of investment in large renewable energy projects, may affect the score.

I have argued in the past that Australia is missing out on billions of dollars in savings through its lack of ambition on energy efficiency. Yet we rate equal 13th on this criterion, compared with 24th on renewable energy. It seems that many other countries are forgoing even more money than us.

In energy efficiency, we score highly for incentives from electricity rate structures, building energy codes and financing mechanisms for energy efficiency. Our public sector policies and appliance minimum energy standards also score well. Our weakest areas are lack of carbon pricing and monitoring, and information for electricity consumers. National energy efficiency planning, incentives for large consumers and energy labelling all do a bit better. Of course, these ratings are relative to a low global energy efficiency benchmark.

The rest of the world

Much of the report focuses on developing countries. There is a wide spread of activity here, with some countries almost without policies, and others like Vietnam and Kazakhstan doing well, ranking equal 23rd. China ranks just behind Australia’s cluster at 21st.

RISE shows that policies driving access to modern energy seem to be achieving results. The report suggests that 1.1 billion people do not have access to electricity, down from an estimated 1.4 billion a few years ago. A significant contributor to this seems to be the declining cost of solar panels and other renewable energy sources, and greater emphasis on micro-grids in rural areas.

The report highlights the importance of strategies that integrate renewables and efficiency. But it doesn’t mention an obvious example. The viability of rural renewable energy solutions is being greatly assisted by the declining cost and large efficiency improvement in technologies such as LED lighting, mobile phones and tablet computers. The overall outcome is much improved access to services, social and economic development with much smaller and cheaper renewable energy and storage systems.

The takeaway

Screen Shot at am. RISE report

RISE finds that clean energy policy is progressing across most countries. However, energy efficiency policy is well behind renewable energy. “This is another missed opportunity”, say the report’s authors, “given that energy efficiency measures are among the most cost-effective means of reducing a country’s carbon footprint.” They also note that energy efficiency policy tends to be fairly superficial.

Australia’s ranking on renewable energy policy is mediocre, while our better energy efficiency ranking is relative to global under-performance. The Finkel Review and Climate Policy Review offer opportunities to integrate renewables and energy efficiency into energy market frameworks. The under-resourced National Energy Productivity Plan could be cranked up to deliver billions of dollars more in energy savings, while reducing pressure on electricity supply infrastructure and making it easier to achieve ambitious energy targets. And RISE seems to suggest we need a price on carbon.

The question is, in a world where action on clean energy is accelerating in response to climate change and as a driver of economic and social development, will Australia move up or slip down the rankings in the next report?

Alan Pears has worked for government, business, industry associations public interest groups and at universities on energy efficiency, climate response and sustainability issues since the late 1970s. He is now an honorary Senior Industry Fellow at RMIT University and a consultant, as well as an adviser to a range of industry associations and public interest groups. His investments in managed funds include firms that benefit from growth in clean energy.

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Emergency crews tackle a bushfire at Boggabri, one of dozens across NSW during the heatwave. AAP Image/NEWZULU/Karen Hodge

The heatwave that engulfed southeastern Australia at the end of last week has seen heat records continue to tumble like Jenga blocks.

On Saturday February 11, as New South Wales suffered through the heatwave’s peak, temperatures soared to 47℃ in Richmond, 50km northwest of Sydney, while 87 fires raged across the state amid catastrophic fire conditions.

On that day, most of NSW experienced temperatures at least 12℃ above normal for this time of year. In White Cliffs, the overnight minimum was 34.2℃, breaking the station’s 102-year-old record.

On Friday, the average maximum temperature right across NSW hit 42.4℃, beating the previous record of 42℃. The new record stood for all of 24 hours before it was smashed again on Saturday, as the whole state averaged 44.02℃ at its peak. At this time, NSW was the hottest place on Earth.

A degree or two here or there might not sound like much, but to put it in cricketing parlance, those temperature records are the equivalent of a modern test batsman retiring with an average of over 100 – the feat of outdoing Don Bradman’s fabled 99.94 would undoubtedly be front-page news.

And still the records continue to fall. At the time of writing, the northern NSW town of Walgett remains on target to break the Australian record of 50 days in a row above 35℃, set just four years ago at Bourke Airport.

Meanwhile, two days after that sweltering Saturday we woke to find the fires ignited during the heatwave still cutting a swathe of destruction, with the small town of Uarbry, east of Dunedoo, all but burned to the ground.

This is all the more noteworthy when we consider that the El Niño of 2015-16 is long gone and the conditions that ordinarily influence our weather are firmly in neutral. This means we should expect average, not sweltering, temperatures.

Since Christmas, much of eastern Australia has been in a flux of extreme temperatures. This increased frequency of heatwaves shows a strong trend in observations, which is set to continue as the human influence on the climate deepens.

It is all part of a rapid warming trend that over the past decade has seen new heat records in Australia outnumber new cold records by 12 to 1.

Let’s be clear, this is not natural. Climate scientists have long been saying that we would feel the impacts of human-caused climate change in heat records first, before noticing the upward swing in average temperatures (although that is happening too). This heatwave is simply the latest example.

What’s more, in just a few decades’ time, summer conditions like these will be felt across the whole country regularly.

Attributing the heat

The useful thing scientifically about heatwaves is that we can estimate the role that climate change plays in these individual events. This is a relatively new field known as “event attribution”, which has grown and improved significantly over the past decade.

Using the Weather@Home climate model, we looked at the role of human-induced climate change in this latest heatwave, as we have for other events before.

We compared the likelihood of such a heatwave in model simulations that factor in human greenhouse gas emissions, compared with simulations in which there is no such human influence. Since 2017 has only just begun, we used model runs representing 2014, which was similarly an El Niño-neutral year, while also experiencing similar levels of human influence on the climate.

Based on this analysis, we found that heatwaves at least as hot as this one are now twice as likely to occur. In the current climate, a heatwave of this severity and extent occurs, on average, once every 120 years, so is still quite rare. However, without human-induced climate change, this heatwave would only occur once every 240 years.

In other words, the waiting time for the recent east Australian heatwave has halved. As climate change worsens in the coming decades, the waiting time will reduce even further.

Our results show very clearly the influence of climate change on this heatwave event. They tell us that what we saw last weekend is a taste of what our future will bring, unless humans can rapidly and deeply cut our greenhouse emissions.

Our increasingly fragile electricity networks will struggle to cope, as the threat of rolling blackouts across NSW showed. It is worth noting that the large number of rooftop solar panels in NSW may have helped to avert such a crisis this time around.

Our hospital emergency departments also feel the added stress of heat waves. When an estimated 374 people died from the heatwave that preceded the Black Saturday bushfires the Victorian Institute of Forensic Medicine resorted to storing bodies in hospitals, universities and funeral parlours. The Victorian heatwave of January 2014 saw 167 more deaths than expected, along with significant increases in emergency department presentations and ambulance callouts.

Infrastructure breaks down during heatwaves, as we saw in 2009 when railway lines buckled under the extreme conditions, stranding thousands of commuters. It can also strain Australia’s beloved sporting events, as the 2014 Australian Open showed.

These impacts have led state governments and other bodies to investigate heatwave management strategies, while our colleagues at the Bureau of Meteorology have developed a heatwave forecast service for Australia.

These are likely to be just the beginning of strategies needed to combat heatwaves, with conditions currently regarded as extreme set to be the “new normal” by the 2030s. With the ramifications of extreme weather clear to everyone who experienced this heatwave, there is no better time to talk about how we can ready ourselves.

We urgently need to discuss the health and economic impacts of heatwaves, and how we are going to cope with more of them in the future.

We would like to acknowledge Robert Smalley, Andrew Watkins and Karl Braganza of the Australian Bureau of Meteorology for providing observations included in this article.

Sarah Perkins-Kirkpatrick receives funding from the Australian Research Council.

Andrew King receives funding from the ARC Centre of Excellence for Climate System Science.

Matthew Hale receives funding from the Australian Research Council.

Richard Higgins (Letters, 15 February) writes: “Farming is about maintaining the land in such a way as to support the animals and people who live upon it”. The late Tony King, professor of politics at Essex University, argued that all successful popular revolutions, good and bad, were accompanied by land reform and redistribution. One criticism of the EU levelled historically by the progressive, internationalist wing of the Labour party has been that the common agricultural policy encourages wasteful use of our common agricultural wealth. Max Weber, more than 100 years ago, showed that there was a relationship between the existence of large, capital-intensive farming estates and reliance on seasonal, immigrant labour.

When the inevitable leftwing reaction to this rightwing Brexit comes we would do well to consider how to reframe agriculture to involve a greater portion of the population and to ensure that a greater portion of our basic needs can be met at a local level rather than, as we seem to do at the moment, relying entirely on production for export and thus throwing ourselves open to the tempestuous nature of global commodity markets in the hope we can be saved by financial calculus alone.
Tom Muddiman
Southampton

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