22/02/2022

(AU ASPI) Sea Country, Climate Change And Indigenous Knowledge

 Australian Strategic Policy Institute

julie burgher/Flickr

Author
Mibu Fischer is a marine ethnoecologist in the multi-use ecosystems tropical coastal group in CSIRO’s Oceans and Atmosphere.
Extending beyond Australia’s 30,000 kilometres of coastline are millions of hectares of ‘sea country’, which encompasses the flora and fauna, beliefs and cultural practices of the many Indigenous groups that care for these areas.

The Australian coastline has receded over the past 35,000 years, with an estimated two million hectares inundated as climate systems changed. This land, though now submerged, still has significant cultural connections for many traditional custodians.

Aboriginal and Torres Strait Islander peoples hold the knowledge of past responses to climate change, but our ability to continue to add to this body of knowledge is limited.

Past generations were able to freely move and adapt to a changing climate. Today, many Aboriginal and Torres Strait Islander communities that are being impacted and will continue to be impacted by climate change rely on Western management systems, imposed through colonisation, to address the issues they face.

On the island of Masig in the Torres Strait, storm surges, higher king tides and rising sea levels are inundating roads, graveyards, freshwater supplies and homes. With current sea-level rise in the region at 6–8 millimetres per year, some islands are likely to become uninhabitable.

The impacts on communities are likely not to end there. The indirect impacts—as a result of ocean acidification, temperature increases on the sea surface and species redistribution—will influence traditional and economic resources, along with culturally important species and practices.

In northern Australia, it’s predicted that cultural species such as turtles will suffer nesting site loss due to sea-level rise. Even where nests survive, ocean temperature increases will result in a skewed gender ratio among hatchlings, with the potential for all-female populations in some nesting areas.

Among human populations, there will be direct impacts on health from increased heat stress and spread of disease, such as mosquito-borne illnesses.

In the south, the Tasmanian Aboriginal shell-stringing community is already noticing changes to the culturally important species of maireener shells. Western-led scientific studies are yet to confirm whether these changes are linked to climate change, but increased ocean acidification is a likely driver.

Decreased abundance and increased shell brittleness may also be caused by increasing ocean temperatures and a reduction in kelp beds due to habitat destruction from invasive sea urchins.

One of the biggest unknowns is the effect that increased storm surges, cyclones and rising tides will have on Australia’s coastlines.

 Climate change and other human activities are reducing the capacity of natural coastal defence systems—such as seagrass meadows, mangroves, saltmarshes, dunes, beaches, shellfish reefs and coral reefs—to protect our shores.

Many communities will lose significant cultural sites and species, resources, spiritual connections and food sources. This will have numerous flow-on effects, including impacts to mental health and wellbeing.

The recognition of Indigenous knowledge and traditional ecological knowledge as a science is increasing among natural resource scientists, researchers, managers, practitioners and policy partners, especially since the Black Summer bushfires of 2019–20.

While appreciation of the effectiveness of traditional firestick fire-management techniques is expanding across the country, the idea that this knowledge also extends beyond our shores and into our coastal and marine environments is still new for many.

In a recent survey, most marine scientists who responded acknowledged the importance of Indigenous engagement, but many were unsure of how to weave it into their research practices.

There are some important considerations for researchers, practitioners and policy partners who want to include an Indigenous perspective in their work. Perhaps foremost among these is reframing the idea that traditional custodians are stakeholders who need to be engaged in addition to and in the same way as other stakeholder groups.

 Aboriginal and Torres Strait Islander peoples are rights and title holders under international and national frameworks and legislation such as the UN Declaration on the Rights of Indigenous Peoples and the Commonwealth Native Title Act 1993.

The engagement of Aboriginal and Torres Strait Islander communities needs to reflect these rights and involve traditional custodians in the earliest project stages. Included in these rights is the principle of ‘free, prior and informed consent’, which is considered standard practice for Indigenous communities.

There’s a move towards co-designed and Indigenous-led marine and coastal management. This shift is about balancing the power dynamics and knowledge governance between traditional custodians and government departments, organisations and researchers.

The inclusion and use of Indigenous knowledge frameworks are one way to empower and weave Indigenous rights and knowledge into marine and coastal management arrangements.

Internationally, the ‘Two-eyed seeing’ or Etuaptmumk (in Mi’kmaw) framework as explained by Mi’kmaw Elder Albert Marshall is an example of an Indigenous framework that has been used in research.

It is a guide to seeing through one eye with strengths and ways of knowing from the Indigenous lens, seeing through the other eye with the strengths of Western ways of knowing and then using both eyes together to find benefits for all. In Australia, the eight-ways pedagogy framework has been used by some scholars.

Aboriginal culture is the longest continuous culture on earth. This continuity means that Aboriginal and Torres Strait Islander cultures are living and can change in response to interactions with different societies, environmental factors, new technologies, changing political beliefs and new discoveries.

Adequate weaving of Indigenous knowledge in marine and coastal management must involve Aboriginal and Torres Strait Islander processes and protocols and move beyond only including Indigenous knowledge as content.

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(AU SMH) There’s Real Power In Change – And Jobs Too

Sydney Morning HeraldAndrew Stock

Author
Andrew Stock is a Climate Council Expert. He is a former Origin Energy executive, with more than 40 years’ experience in senior energy executive roles.
Origin Energy’s decision to bring forward the closure of its Eraring coal-fired power station – NSW’s largest – reflects the reality of a 21st-century power grid, and 21st-century economics.

Coal is king no longer. Unable to compete on cost with renewable energy, it is also inflexible, ageing, inefficient and polluting.

Eraring power station, which owner Origin Energy has said will close seven years early in 2025. Credit: Dean Sewel

In Australia, and globally, renewables backed by storage deliver the cheapest power, and do so without the greenhouse emissions coal and gas produce, which is critical if we are to avoid the worsening impacts of climate change.

As a senior executive for over 10 years at Origin, I was responsible for the development of its power generation fleet, gas, wind and solar. In the early 2000s, before global emissions ballooned on the back of coal and gas expansions, gas power was seen as a transition pathway to renewables.

Even then, though, I thought Origin’s foray into coal power was a step too far in the face of climate change science, and stayed well clear of it.

After a decade of coal ownership, it looks like the current board and CEO have finally seen the light.

Energy Coal plant closure explainer
Origin’s announcement should not have come as a surprise to the Morrison government. As recently as this month, other energy majors like AGL and Alinta, have made announcements or comments about bringing forward their coal power station closures.

The market operator, AEMO, foreshadowed earlier coal closures at the end of 2021 in its draft Integrated System Plan.

By giving three to four years’ notice, Origin is ensuring the market has the time needed to build out more renewables and storage to replace Eraring’s capacity and energy. Although, last year, the Eraring station ran at only 50 per cent capacity factor.

Big batteries can be delivered in less than a year, large solar and wind farms in less than two, and there is no shortage of players willing to invest the capital to deliver these projects.

Origin itself has said it will add a 700 megawatt battery at the Eraring site and could double capacity of its pumped hydro station at Shoalhaven.

AGL is doing the same, adding renewables and storage to cover the progressive closure of its Torrens A gas power station in South Australia, and its Liddell coal power station in NSW.

Energy production in 2021
*South West Interconnected System only Source: OpenNEM. This data covers the period from 1 January 2021 to 31 December 2021.

The same week as Origin’s announcement, the NSW government unveiled a comprehensive plan to prepare the state’s electricity grid for inevitable coal closures.

This includes the new Hunter-Central Coast Renewable Energy Zone (REZ), which aims to provide 100 terawatt hours of power by the mid 2020s. That is almost double the generation of NSW’s entire coal fleet.

The new Hunter REZ is just one of four proposed renewable energy zones in the state.

Provided that extra new renewable capacity and storage is in place and operating before coal closures, there is every reason to believe the transition away from coal in NSW will deliver cheaper power to consumers.

That is what happened in my home state of South Australia.

The state now routinely has the cheapest wholesale power prices in the National Electricity Market, and the cleanest grid of any mainland state. Meanwhile, gas in SA is in steep decline, as it is across much of the national electricity system.

Origin has made a commercial decision and says it is positioning for a global clean energy future. However, it has a long way to go after Eraring closes, as it still seeks to expand its gas fracking in places like the NT’s Beetaloo Basin, Canning in Western Australia and its coal gas in Queensland.

Energy
All of these projects are hugely emissions intensive.

Hopefully Origin will soon realise the folly of continuing to sink shareholder funds into these carbon-intensive gas developments, ones that the traditionally conservative International Energy Agency says have no place in the world’s energy future.

Australia has the natural resources to become a world leader in renewable energy, as well as industries such as clean manufacturing, minerals processing and renewable hydrogen.

Generations of Australians could work in these clean industries.

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(AU ABC) Magpies Face Bleak Future As Heat Rises With Climate Change

ABC Radio Perth | Alicia Bridges

Two magpies from Amanda Ridley's research group warbling at the University of Western Australia recently. (ABC Radio Perth: Alicia Bridges)

Key Points
The sound of magpies warbling in the morning is synonymous with life in Australia, but Perth researchers are predicting a bleak future for the beloved species.
Research conducted by associate professor Amanda Ridley and her team at the University of Western Australia has found that very hot weather is affecting the birds' ability to survive, reproduce and raise their chicks.

Dr Ridley, who has been collecting data on magpies since 2013, said heatwaves had devastated the birds and their babies over the past three summers.

"During that very bad heatwave (in 2019-2020), which caused terrible bushfires all across Australia, we had zero reproductive success," Dr Ridley said.

"All the babies that were alive during that heatwave died before it ended.
"That's a one-off event but if this happens more frequently, which is predicted to happen under climate change, and we're already seeing it happen in Perth ... this could cause a catastrophic decline."
The Western Australian Climate Projections summary, a document prepared by the state government, predicts the number of very hot days over 35 degrees Celsius in WA's South West will increase from 28 to 36 by 2030, under an "intermediate emissions scenario".

By 2090, the number of days would increase to 63.

Dr Ridley and her team, the Western Magpie Research Project, work with multiple groups of wild but tame birds across Perth.

Amanda Ridley with some of the research group of wild magpies, and a few of the crows that live in the area. (ABC Radio Perth: Alicia Bridges)

She said the more recent heatwave over the 2021 holiday period had also affected the birds.

The team's research has found that the magpies suffer cognitive decline when the temperature reaches around 32 to 33 C.

Too hot to sing

They experience heat stress which hinders their ability to forage for food and

"What we also found is that they were trading off investment in the babies," Dr Ridley said.

"So, when it came to having to make sure they were gaining enough body mass, they would abandon their babies.

"The babies weren't being fed on those really hot days, and that's causing the babies to die."

With chicks facing more barriers to survival, Dr Ridley said there were issues with fewer juvenile birds reaching breeding age, and those that did often had stunted development which affected their success as adults.

Number of birds might be deceiving

"At the moment, people see magpies around a lot; they think magpies are really common, but the thing with magpies is that they're long-lived," Dr Ridley said.

"So, these adults that you're seeing around ... can live for 20 years.

PhD student Lizzie Speechley with a magpie called Yum, part of the wild research group at UWA. (ABC Radio Perth: Alicia Bridges)

"But what's important is that juveniles come through and are recruited to breeding adults. And we've seen recently that that's not happening."

Recruitment, she said, was when juveniles joined the social group as breeding adults, maintaining the group's size by replacing other adults when they die.

Dr Ridley is yet to collate her data into projections to estimate the exact risk and timeline of population decline in magpies.

African birds present troubling picture

However, she has compiled projections using data on another bird called a pied babbler, which has a similar body mass and lives in a part of South Africa with a similar climate to Perth.

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Playful birds brainier

She said more than 30 per cent of predictions said that the babbler population would become extinct in hot and dry conditions.

"That was quite a wake-up call for us, because you see them everywhere you think that they're going to be fine," Dr Ridley said.

"But every species is affected by climate change, and they're potentially facing a cliff — that breakpoint of their tolerance — that they're going to fall off."

Dr Ridley said other groups doing similar research were also seeing "breakpoints" once it got too hot.

"I think it is probably quite a solid representation of what's happening to a lot of bird species," she said.

Dr Ridley added that providing water for the magpies in hot weather is one way to help the birds.

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