20/05/2020

'For Your Children': Former Top Australian Public Servants Call For Carbon Price

The Guardian

Ex-Treasury head Ken Henry tells Four Corners he looks back on a decade of failed climate policy and feels ‘gutted’

Several former public servants have expressed their frustration over Australia’s climate policy. Photograph: Darren England/AAP

Former senior public servants have called for the re-introduction of a carbon price, saying it would be the least economically damaging way to cut greenhouse gas emissions and could deliver the technological solutions the Morrison government says are needed.

In interviews on ABC TV’s Four Corners on Monday, several ex-top advisors expressed frustration and in some cases anger about the country’s failure to introduce durable policies to address climate change.

Ken Henry, the Treasury secretary between 2001 and 2011, said the question the government should be asking itself on climate was how to put a cap, or limit, on national emissions at least cost to the country.

“The answer to that question – and everybody will tell this – is an emissions trading scheme,” he said.

Martin Parkinson, a former secretary of Treasury and the now defunct climate change department, said it was incorrect to categorise carbon pricing as being “about taxing people”.

“The carbon price is actually about creating the right sort of incentives to develop the technology and then use it,” he said.

On national climate policy, Parkinson said: “What climate policy? I mean it’s basically … it’s a mess. It’s incoherent and has been for a decade.”

Peter Shergold, the head of the Department of Prime Minister and Cabinet in the final years of the Howard government, was asked what he would say to the prime minister, Scott Morrison, if he held that position now.

He said he would tell him: “My sense, prime minister, is that there is a mood to follow such leadership if it exists. Tell it honestly, and tell it truthfully, and don’t try and pretend there are not going to be costs imposed on industry and costs imposed on individuals, but it is worth that for the sake of your children and your grandchildren.”

The former bureaucrats made the comments while reflecting on the bipartisan support for carbon pricing between 2007 and 2009. Their shared position is consistent with advice given to governments since before that period.

ABC Four Corners: Climate Wars
How brutal politics derailed climate policy in Australia. Several former senior public servants speak about flawed decision making and squandered opportunities by parties on all sides of the political spectrum over a decade.

The Morrison government has rejected calls for fossil fuel industries to have to pay for their emissions. Its central climate policy, the $2.5bn emissions reduction fund, uses taxpayer money to pay some businesses and landowners to limit carbon pollution, often by restoring and protecting native habitat.

Angus Taylor, the energy and emissions reduction minister, told Four Corners the answer to reducing emissions was to use incentives and focus on “technology, not taxes”. The government has promised a “technology investment roadmap” this year.

“Ultimately, reductions in emissions will happen when technologies that work, that are at parity with their higher-emitting alternatives, where rational people choose them because they’re good choices,” Taylor said.

“That’s how we’ll bring down emissions globally, and Australia is absolutely committed not just to using those technologies within Australia, but playing a role in areas like hydrogen, integration of household solar, land management, to help other countries to reduce their emissions in that longer term timeframe as well.”

Henry said the past decade of climate politics had left him in no doubt that “we have failed”.

“I look back on it now and I still feel gutted,” he said. “I feel angry. I know that’s not a good thing, and I probably should get therapy, but I’ve asked myself this question many, many times: why do I still feel angry about it? And the reason I feel angry about it is that I feel angry about what Australia has lost.”

There is a growing push internationally for governments and business to back a green recovery from the Covid-19 pandemic. More than 120 countries and Australia’s six states have set a goal of net zero greenhouse gas emissions. The Morrison government has not set this target, and has emphasised that gas, a fossil fuel, will be central to its economic recovery plans. It has also promised a long-term emissions strategy this year.

The Intergovernmental Panel on Climate Change was commissioned at the 2015 Paris climate summit to report on what would be involved in limiting global heating to 1.5C above pre-industrial levels. It found it was likely it could be achieved by cutting global emissions 45% between 2010 and 2030 and reaching net zero by about 2050.

Until this year, Australia’s emissions had largely flatlined since 2014, when the Coalition repealed the emissions trading scheme introduced by Labor with the support of the Greens and independents. Though often mis-described as a carbon tax, it was designed to become a trading scheme after three initial years of a fixed carbon price imposed on emitting businesses.

Both Australian and global emissions have fallen this year due to the economic shutdown caused by the Covid-19 pandemic, but analysts say they are expected to rebound unless recovery plans incorporate policies to address climate change.

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Humans Coexisted With Three-Tonne Marsupials And Lizards As Long As Cars In Ancient Australia

The ConversationScott HocknullAnthony DossetoGilbert Price
                                  Lee ArnoldPatrick MossRenaud Joannes-Boyau

We now know people and megafauna overlapped by up to 20,000 years, until changes to vegetation, water and fire

Life and death in tropical Australia, 40,000 years ago. Giant reptiles ruled northern Australia during the Pleistocene with mega-marsupials as their prey. Image Credit: R. Bargiel, V. Konstantinov, A. Atuchin & S. Hocknull (2020). Queensland Museum.

Authors
  • Scott Hocknull is senior curator of geosciences at the Queensland Museum, and an honorary research fellow at the University of Melbourne
  • Anthony Dosseto is a professor at the University of Wollongong
  • Gilbert Price is a lecturer in palaeontology at the University of Queensland
  • Lee Arnold is associate professor in earth sciences at the University of Adelaide
  • Patrick Moss is a professor at the University of Queensland
  • Renaud Joannes-Boyau is a senior research fellow at Southern Cross University
When people first arrived in what is now Queensland, they would have found the land inhabited by massive animals including goannas six metres long and kangaroos twice as tall as a human.

We have studied fossil bones of these animals for the past decade.

Our findings, published today in Nature Communications, shed new light on the mystery of what drove these ancient megafauna to extinction.

The first bones were found by the Barada Barna people during cultural heritage surveys on their traditional lands about 100 kilometres west of Mackay, at South Walker Creek Mine.

Our study shares the first reliable glimpse of the giants that roamed the Australian tropics between 40,000 and 60,000 years ago.

These megafauna were the largest land animals to live in Australia since the time of the dinosaurs. Understanding the ecological role they played and the environmental impact of their loss remains their most valuable untold story.

Fossils are found eroding out of the ancient flood plains of South Walker Creek. Rochelle Lawrence, Queensland Museum.



While megafauna lived at South Walker Creek, people had arrived on the continent and were spreading across it. Our study adds new evidence to the ongoing megafauna extinction debate, but importantly underscores how much is left to learn from the fossil record.

The megafauna welcoming party

We excavated fossils from four sites and made detailed studies of the sites themselves to find the age of the fossils and understand what the environment was like in the past.

Our findings give us an idea of what megafaunal life was like in the tropical Australian savanna over a period of about 20,000 years, from around 60,000 to 40,000 years ago. During this time, the northern megafauna were different to those from the south.

Mega-reptiles of Pleistocene tropical Australia. V. Konstantinov, A. Atuchin, R. Allen, S. Hocknull. Queensland Museum.

We have found at least 13 extinct species so far at South Walker Creek, with mega-reptiles as apex predators, and mega-mammals their prey. Many of the species discovered are likely new species or northern variations of their southern counterparts.

Mega-mammals from Pleistocene tropical Australia. V. Konstantinov, A. Atuchin, S. Hocknull. Queensland Museum.

Some, like the extinct crocodiles, were thought to have gone extinct long before people were on the scene. However, we now know they survived in at least one place 60,000-40,000 years ago.

The giant kangaroo of South Walker Creek may be the largest kangaroo ever found. Pictured here next to the previous titleholder, Procoptodon goliah. Scale bar equals 1 m. V. Konstantinov, A. Atuchin, R. Allen, S. Hocknull. Queensland Museum.




Imagine first sighting a six-metre goanna and its Komodo Dragon-sized relative, or bumping into a land-dwelling crocodile and its plate-mail armoured aquatic cousin. The mammals were equally bizarre, including a giant bucktoothed wombat, a strange “bear-sloth” marsupial, and enormous kangaroos and wallabies.

A yet-to-be named giant kangaroo is the largest ever found. With an estimated mass of 274 kg, it beats the previous contender, the goliath short-faced kangaroo, Procoptodon goliah.

The biggest of all the mammals was the three-tonne marsupial Diprotodon, and the deadliest was the pouched predator Thylacoleo. Living alongside these giants were other megafauna species that still survive today: the emu, the red kangaroo and the saltwater crocodile.

Whodunnit? The evidence points to environmental change

Why did these megafauna become extinct? It has been argued that the extinctions were due to over-hunting by humans, and occurred shortly after people arrived in Australia.

However, this theory is not supported by our finding that a diverse collection of these ancient giants still survived 40,000 years ago, after humans had spread around the continent.

Fossil seeds, leaves and insects help palaeontologists reconstruct the megafauna’s environment. Scale bar equals 1 mm. Paul Tierney, Queensland Museum.


The extinctions of these tropical megafauna occurred sometime after our youngest fossil site formed, around 40,000 years ago. The timeframe of their disappearance coincided with sustained regional changes in available water and vegetation, as well as increased fire frequency. This combination of factors may have proven fatal to the giant land and aquatic species.

The megafauna extinction debate will no doubt continue for years to come. New discoveries will plug up the key gaps in the record. With the gaps in the north of the continent the greatest yet to fill.

With an overlap between people and megafauna of some 15,000–20,000 years, new questions arise about co-habitation. How did people live with these giants during a period of such drastic environmental change?

How much more change can Australia bear?

Major environmental change and extinctions are not an unusual part of our geological past, but this time it’s personal; it involves us. Throughout the Pleistocene (the time that ended with the most recent ice age), Australia has undergone major climatic and environmental change.

Within the same catchment of these new megafauna sites, one study shows how major climatic upheaval beginning around 280,000 years ago caused the disappearance of a diverse rainforest fauna. This set in motion a sequence of changes to the ecosystem that culminated in the loss of the megafauna at South Walker Creek around 40,000 years ago.

It’s still unclear what impact these long-term environmental changes and the loss of the megafauna had on the species that survived.

This long-term trend of extinctions has now been given a kick along by the major changes to the environment created by humans which continue today. In the early 21st century in Australia we have seen increases in floods, droughts and bushfires, and we expect these increases to continue.

The fossil record provides us with a window into our past that can help us understand our present. As our study shows, dramatic environmental change takes a heavy toll on species survival especially for those at the top of the food chain. Will we heed the warnings from the past or suffer the consequences?

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Doomsday: By 2300, Global Sea Levels Could Rise by An Astounding 16 Feet

The National Interest - Ethen Kim Lieser

Today, about 770 million people, or about 10 percent of the global population, live on high-risk land that is less than 16 feet above the high-tide line. 

Image: Reuters

International scientists recently warned that if Earth’s surface temperature warms another 6 to 7 degrees Fahrenheit, oceans will likely rise as much as four feet by the year 2100.

In a peer-reviewed study published in the journal Climate Atmospheric Science, the world looks even grimmer by 2300, when ice sheets covering West Antarctica and Greenland will have shed trillions of tons of mass. In this catastrophic scenario, sea levels could swell by more than 16 feet, which would redraw the globe’s coastlines.

Benjamin Horton, acting chair of the Nanyang Technical University’s Asian School of the Environment in Singapore, headed the survey that aimed to give “policymakers an overview of the state of the science,” a statement said.

Today, about 770 million people, or about 10 percent of the global population, live on high-risk land that is less than 16 feet above the high-tide line.

Compared to various reports released by the U.N. Intergovernmental Panel on Climate Change (IPCC), these new projections for both 2100 and 2300 paint a much more frightening picture about what’s to come.

“It is clear now that previous sea-level rise estimates have been too low,” the study’s co-author Stefan Rahmstorf, head of Earth system analysis at the Potsdam Institute for Climate Impact Research, told AFP.

“The IPCC tends to be very cautious and conservative, which is why it had to correct itself upwards already several times.”

Experts warned that although sea-level rise might not garner the same media attention of punishing hurricanes and crop-destroying droughts, this particular threat might ultimately prove to be the most devastating of all climate-change effects. Only a couple of extra inches of ocean water could make tropical storms and hurricanes that much more lethal and destructive.

Scientists noted that for much of the 20th century, sea-level rise was caused chiefly by melting glaciers and the expansion of ocean water as it warms. Over the last two decades, however, the main culprit has been the melting of Greenland and West Antarctica.

These two massive ice sheets are losing at least six times more ice today than during the 1990s. From 1992 through 2017, these two bodies shed roughly 6.5 trillion tons of mass.

Combined, Greenland and West Antarctica hold enough ice to lift oceans by about 43 feet. The much more stable East Antarctica has enough ice to potentially have a 160-foot impact.

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