Property developer One Living, backed by former Macquarie banker turned investment manager Chris Green’s investment firm, has unveiled plans to bring more institutional capital into housing to help address the national supply crisis.

The New York-based investor has focused his firm, GreenPoint Partners, on addressing the supply shortage hitting middle market housing in Australia.

It is backing the new One Living business to develop more than 1000 units along the eastern seaboard. The new firm is starting with a development on Mona Vale Road, on the border of Mona Vale and Pymble, in Sydney’s Northern Beaches, with around 140 apartments planned. They are eyeing off more sites across the city.

With cost pressures rising in the industry, One Living’s model is to be a vertically integrated developer-builder, so it can respond directly to the housing gap by removing the cost inefficiencies embedded in traditional residential delivery.

“We are building a platform designed to operate at scale and starting in a market where there’s a clear need for quality, attainable housing,” One Living joint managing director Joseph Scuderi said.

“It’s that missing middle – it’s that attainable end of housing… that’s what most Australians invest into and what Australians can actually afford.”

<img alt="Mona Vale" data-entity-type="file" data-entity-uuid="798dfa93-4941-4db6-a696-31e9dc18e81c" src="https://s3.ap-southeast-2.amazonaws.com/www.urban.com.au/s3fs-public/inline-images/Screenshot%202026-05-28%20at%202.31.50%E2%80%AFPM.png?VersionId=mKBqi5C_DmeiXS.AtJkcR8LQIxqCqmFi" />

GreenPoint Partners brings years of experience assembling and scaling real estate operating businesses across major markets. And Green sees a big opportunity in Australia.

“For its size, sophistication and importance to the community, Australia’s living sector has remained largely under-institutionalised, which represents significant opportunity,” Green said. “GreenPoint identified that gap, assembled the right team, and is backing One Living to build a platform that is aligned to market needs.”

Green said being a builder-developer would give the company the capacity and flexibility it required to deliver reasonably-priced homes.

“We want it to be at that attainable level; not super high end luxury but at that attainable level,” he said.

<img alt="Mona Vale" data-entity-type="file" data-entity-uuid="74a5344a-4b26-4d4a-ada3-056b1220be77" src="https://s3.ap-southeast-2.amazonaws.com/www.urban.com.au/s3fs-public/inline-images/Screenshot%202026-05-28%20at%202.32.15%E2%80%AFPM.png?VersionId=vY8hXHO4reBMdO8ZXMWCNtGZJofUPQ3j" />

&nbsp;

One Living will undertake a component of affordable housing in its schemes, which it will own and operate, and it could also run build-to-rent on some sites.

Green praised local policy settings.

“The NSW government is being very supportive, strategic and pragmatic in terms of how do we generate more supply of housing,” he said. “We think it’s actually positive for development and the bit that’s been lacking at that attainable level is that it’s lots of relatively small private developers, whereas we want to create an institutional platform.”

One Living is also&nbsp;looking at high-density projects and could take on more institutional funding in the future.

“The way we will be able to achieve economies of scale is through size,” Green added.

Joel Robinson

One Living enters Sydney's new apartment market with Northern Beaches site acquisition

It's been several years since there's been an opportunity to buy a brand new townhome in Melbourne's coastal suburb of Mordialloc. Even apartment developments in recent times have been few and far between in the area.

Local developer LDS Property identified the gap in new housing, securing a site on White Street, directly opposite&nbsp;Woodlands Golf Club Mordialloc. They've recently launched&nbsp;<a href="https://www.apartments.com.au/new-townhouses/wm-residences-mordialloc-102-white-street-mordialloc-vic-3195">WM Residences</a>, just 13 townhouses which they have already started building.

Projects by Buxton Director Heath Thompson, who is selling WM Residences, says the townhouses x that perfect middle ground be

"Mordialloc residents have had limited options to downsize within the suburb, often forcing them to look elsewhere despite long-standing ties to the area," Thompson says.

"With very little comparable new supply coming to market, projects like WM Residences are well placed, particularly as buyers look to capitalise on current conditions amid constrained supply."

[smartcode_project:default project_id=134646 project_image_fid=6109]

The development, designed by regarded architecture firm&nbsp;<a href="https://www.apartments.com.au/architects/ewert-leaf">Ewert Leaf</a>,&nbsp;adopts a deliberately restrained architectural approach, focusing on simplicity, durability and liveability rather than overt design gestures.

The boutique scale is central to the offering. With only 13 three-bedroom residences, each home is configured to prioritise functional layouts and everyday use, supported by private terraces and secure two-car garages.

Ewert Leaf’s design response leans into a calm, neutral material palette. Interiors are defined by oak flooring, white walls and soft finishes, creating a consistent and understated backdrop. The approach avoids trend-driven detailing in favour of longevity, with an emphasis on natural light and spatial clarity.

[smartcode_project:default project_id=134646 project_image_fid=6110]

Beyond aesthetics, the homes are designed to meet contemporary performance expectations. Each residence targets a minimum 6-star energy rating, incorporating double glazing, comprehensive insulation and all-electric Bosch appliances.

The project’s location supports a walkable coastal lifestyle, sitting within close proximity to Mordialloc’s foreshore, Main Street retail strip and the train station. Local cafés and dining venues, including Suburbia Deli and Hendriks Café, are within a short walk, reinforcing the area’s established neighbourhood character.

[smartcode_project:default project_id=134646 project_image_fid=6116]

While <a href="https://www.apartments.com.au/developments/mordialloc-vic-3195">Mordialloc</a> is often defined by its beach and pier, the project taps into other areas of day to day living, offering easy access to local food, casual dining and transport, rather than positioning itself purely as a lifestyle retreat.

WM Residences reflects a continued trend across Melbourne’s coastal suburbs towards smaller-scale, design-led townhouse developments, particularly on infill sites where proximity to amenity is already established.

With construction commenced prior to its market entry, the project aligns with a growing preference among buyers for developments with visible progress and defined delivery timeframes.

[smartcode_project_cta:default project_id=134646]

WM Residences fills gap in Mordialloc townhouse market

&nbsp;

Developer GURNER™ Group has revealed $1.65 billion in residential sales nationally across the 12 months to December 2025, driven largely by the continued momentum of its Docklands wellness-focused precinct, Elysium Fields.

The sales result was generated across seven projects in Victoria and New South Wales, headlined by Elysium Fields, GURNER™’s $2.75 billion mixed-use precinct planned for Harbour Esplanade in Docklands.

The project has recorded more than $500 million in sales across the first three towers, equating to around 580 apartments sold.

The first tower, Helios, has now sold out of its 240 private residences, with GURNER™ preparing to release a premium penthouse collection comprising 15 three-bedroom penthouses in coming weeks.

[smartcode_project:default project_id=144441 project_image_fid=370975]

Elysium Fields is being developed on the long-held 20,000 sqm Docklands site at 208-226 Harbour Esplanade, which had remained undeveloped for more than two decades prior to GURNER™ taking over the project around four years ago.

Construction has now commenced across four towers ranging between 18 and 30 storeys, with Hamilton Marino and Maxcon appointed as builders.

Once complete, the precinct is expected to comprise around 1,100 residences, alongside retail, hospitality and public realm uses integrated throughout the site.

[smartcode_project:default project_id=144441 project_image_fid=370981]

Designed by Fraser &amp; Partners in collaboration with GURNER™ Design House, the project has been positioned around the developer’s broader focus on wellness-led residential living.

“We don’t sell apartments. We create a true luxury lifestyle that simply doesn’t exist elsewhere in the market today,” Founder and Executive Chairman Tim Gurner said.

“To deliver that requires an extraordinary level of detail, coordination and discipline across multiple verticals, from design and hospitality through to wellness and service.”

“We’ve always believed that living extends far beyond the physical residence. It’s about how you feel the moment you arrive, how you live day-to-day, and the ecosystem that supports that.” 
[smartcode_project:default project_id=144441 project_image_fid=370977]

The project’s design places a heavy focus on landscaping, wellness amenities and biophilic design principles.

Plans include around 3,700 sqm of landscaped gardens and open space throughout the precinct, alongside a retail and dining offering spanning approximately 5,000 sqm.

The broader public realm strategy centres around what GURNER™ describes as the “Path of Life”, an urban forest and landscaped pedestrian environment intended to connect the various buildings and wellness spaces across the precinct.

The apartments themselves will incorporate a range of wellness-focused inclusions, including purified air and water systems, circadian lighting, antimicrobial surfaces, and optional in-home wellness upgrades.

[smartcode_project:default project_id=144441 project_image_fid=370980]

Gurner said the company’s experience through its Saint Haven wellness clubs had directly informed the residential offering now being incorporated into Elysium Fields.

“We’re seeing a clear global shift toward longevity, performance and proactive health,” Gurner said.

“Our role is to deliver that in a way that feels seamless, highly private and beautifully resolved within the environments we create.”

A large component of the wellness offering is planned through the resident amenity and health facilities proposed within the precinct.

That includes plans for bathing and recovery facilities spread throughout the towers, incorporating mineral pools, saunas, steam rooms, flotation therapy, red light therapy and wellness lounges.

The developer is also seeking approvals for what it describes as a “reverse ageing medical clinic” within the precinct.

[smartcode_project:default project_id=144441 project_image_fid=370978]

According to project information released by the group, the proposed facility would include cryotherapy, IV infusion therapy, infrared and dry saunas, PEMF beds, MRIs, DEXA scans, brain scans and blood analysis services.

Within the first tower, Helios, residents will also have access to a dedicated amenity offering known as the Sky Private Club.

The upper 15 levels of the building will include private lounges, dining spaces, rooftop amenities and optional private wellness studios integrated within residences.

The Helios tower itself comprises 260 apartments ranging between 60 sqm and 300 sqm, including a collection of penthouses.

That includes a planned two-storey penthouse spanning around 600 sqm with uninterrupted bay views.

The Elysium Fields precinct is being delivered in partnership with Digital Harbour Holdings, a consortium that includes the Liberman family, which controls the development rights across the Docklands site.

[smartcode_project:default project_id=144441 project_image_fid=370979]

The sales result comes as GURNER™ continues expanding its national development pipeline beyond Victoria.

“We have a strong pipeline across Australia and are now focused on scaling into key markets including New South Wales and Queensland, while continuing to build on our Melbourne base,” Gurner said.

“We currently have more than $3 billion in the market, growing to over $5 billion by October, and expect to materially outperform last year in the 2026 calendar year.”

The result also reflects the continued strength of the upper-end apartment market in Melbourne, particularly for owner-occupier-focused product with large-scale amenity and lifestyle offerings.

[smartcode_project_cta:default project_id=144441]

Record result anchored by the Group’s “utopian” Elysium Fields precinct – defying market headwinds in Docklands.

Elysium Fields drive Gurner to $1.65 billion in apartment sales over 2025

National Australia Bank (NAB) will fund <a href="https://www.apartments.com.au/new-apartments/palmera-residences-gold-coast-18-garfield-terrace-surfers-paradise-qld-4217">Palmera</a>, a $1 billion, 52-level luxury residential tower being developed by Central Equity in one of the Gold Coast’s most tightly held coastal locations at Northcliffe.

The project, launched recently by <a href="https://www.apartments.com.au/developers/central-equity">Central Equity</a>, one of Victoria’s largest private residential developers, comes at a time when construction funding for large residential developments has become increasingly competitive as lenders tighten exposure to the sector.

Multiplex has been appointed the builder, and construction is now underway.

[smartcode_project:default project_id=108274 project_image_fid=365784]

Since its first project, Central Equity has delivered more than 85 residential developments with a combined end value exceeding $8 billion.

Palmera reflects Central Equity’s growing focus on the Gold Coast luxury apartment market and continues a relationship between Central Equity and NAB that dates back to the late 1980s, when the bank funded one of Melbourne’s earliest inner-city residential towers at a time when high-rise apartment living in the CBD was largely unproven.

“NAB’s funding of Central Equity’s $36 million CBD development in the late 1980’s to the financing of the billion-dollar tower today highlights the long-term relationship between the two organisations in delivering major residential projects” said Central Equity Founder and Chairman Eddie Kutner.

He said NAB’s early support was instrumental in helping establish the company’s development model.

“When we commenced our first residential tower in the late 1980s the concept of funding off-the-plan apartments was still largely untested in Australia,” Kutner said.

“NAB recognised the opportunity early and supported the project when others were uncertain. That relationship has now continued for more than 37 years across many developments.”

[smartcode_project:default project_id=108274 project_image_fid=365771]

Central Equity was established in 1987 when Melbourne’s CBD and Southbank precinct were still dominated by warehouses and commercial buildings. Fewer than 100 residents lived in Southbank at the time, and large-scale residential development in the inner city was not widely considered.

Recognising changing demographics and lifestyle preferences, the company began developing high-rise residential projects designed to bring permanent residents into the city centre.

Central Equity has provided accommodation for approximately 40,000 residents across Melbourne’s CBD and Southbank, while also incorporating supporting infrastructure including essential lifestyle facilities like retail spaces, childcare facilities and neighbourhood activity centres.

Central Equity has spent many years assembling the Palmera development site on the corner of Garfield Terrace and Frederick Street in Northcliffe, creating a supersite of around 3,300 sqm.

The developer said the Palmera apartment tower reflects its long-term view of the Gold Coast as a growing and increasingly diversified economy.

[smartcode_project:default project_id=108274 project_image_fid=365768]

Supported by infrastructure including the light rail network, major road upgrades expanded education, hospital and medical facilities and continued expansion at the Gold Coast Airport with more international and domestic flights.

Positioned in the tightly held Northcliffe precinct, the 52-level tower will deliver 347 apartments, targeting buyers seeking a high-end coastal lifestyle, from downsizers to interstate investors.

Designed by Marchese Partners with interiors by DBI, Palmera has been conceived as a next-generation residential offering, featuring a collection of oversized apartments, with premium three-bedroom residences offering sweeping northern views stretching from Surfers Paradise through to Burleigh Heads.

[smartcode_project_cta:default project_id=108274]

NAB funds $1 billion Surfers Paradise apartment development, Palmera

Two years after completing one of the newest developments in North Sydney, developer <a href="https://www.apartments.com.au/developers/aqualand-australia">Aqualand</a> is turning its attention to the rapidly evolving St Leonards apartment market.

The developer, which completed AURA by Aqualand on North Sydney's Walker Street, has lodged plans for a 5,918 sqm site at <a href="https://www.apartments.com.au/new-apartments/33-37-herbert-street-st-leonards-nsw-2065">33-37 Herbert Street, St Leonards,</a> seeking approval for a pair of residential towers rising above a shared podium opposite Royal North Shore Hospital.

The proposal forms part of the broader transformation underway across the St Leonards-Crows Nest precinct, where former industrial and commercial sites are increasingly being redeveloped into high-density mixed-use projects tied to major transport infrastructure.

<img alt="Aqualand" data-entity-type="file" data-entity-uuid="2cc428cf-fe70-4cac-9cd5-264ad53af62c" src="https://s3.ap-southeast-2.amazonaws.com/www.urban.com.au/s3fs-public/inline-images/Screenshot%202026-05-28%20at%209.51.56%E2%80%AFAM.png?VersionId=otKSnHtbjAvAddOnovyXQMgcAwE6DMe1" />

According to the planning documents, the site sits “within the St Leonards–Crows Nest Strategic Centre, identified by the NSW Government as a key area for accommodating future jobs and housing across Sydney.”

The proposal has been designed by fjcstudio, formerly FJMT Studio, and is being progressed through the State Significant Development pathway due to its scale and affordable housing provision.

The scheme would comprise 413 apartments, including 46 affordable housing units, alongside retail and commercial uses fronting Herbert Street. The project would also include communal open space, landscaping, a swimming pool, gymnasium, children’s play areas and podium-level resident amenities.

Planning documents show the development would consist of a part-13, part-39 storey tower form positioned above a four-storey podium.

“The development comprises a unified podium that activates the street interface, and two setback towers to accommodate new housing supply while maintaining an appropriate human scale at ground level,” fjcstudio noted in its Design Report.

The northern and southern towers have been shaped to respond to the surrounding skyline while also limiting overshadowing impacts to nearby public open space, particularly Talus Reserve.

The design report said the differing tower heights were intended to “contribute to a varied skyline while responding to the surrounding built form context and solar access considerations.”

<img alt="Aqualand" data-entity-type="file" data-entity-uuid="36da62dc-ff9e-41f2-a7e3-7be38373751c" src="https://s3.ap-southeast-2.amazonaws.com/www.urban.com.au/s3fs-public/inline-images/Screenshot%202026-05-28%20at%209.51.45%E2%80%AFAM_0.png?VersionId=Mo6Rp2r.XRLTzIfg_PEEpw8NepDH8UBs" />

The site sits directly opposite Royal North Shore Hospital and within walking distance of both St Leonards Station and the new Crows Nest Metro station.

While the site itself sits just outside the formal Crows Nest Transport Oriented Development boundary, the planning documents repeatedly reference its alignment with the broader TOD objectives reshaping the Lower North Shore.

“The site is located adjacent to St Leonards Station and in close proximity to Crows Nest Metro which is within the Crows Nest Transit Orientated Development Accelerated Precinct which has been identified by the NSW Government to support housing delivery,” the Design Verification Statement noted.

According to fjcstudio, the project has been designed to respond to the broader transition occurring across St Leonards, where increasing residential density is being concentrated around transport infrastructure and employment hubs.

“The broader precinct is undergoing significant change, with a mix of existing mid-rise buildings and newer high-density developments,” the report stated.

“Recent and approved projects indicate a consistent shift toward taller built form, typically organised as tower-and-podium typologies with more active ground levels.”

The proposal includes close to 6,000 sqm of retail and commercial space across the ground floor and podium levels, designed to create a more activated street edge along Herbert Street.

Aqualand’s plans would also introduce a landscaped podium shared between the two towers, with communal open space in the form of a podium rooftop designed to support resident interaction and improve urban greening outcomes. The scheme would also introduce pocket parks at the northern and southern ends of the site, including a landscaped area at the corner of Herbert and Ella streets designed to improve pedestrian amenity and soften the streetscape.

&nbsp;

The proposal is being progressed through the NSW Government’s Housing Delivery Authority pathway, which was introduced to accelerate housing supply across the state. The application was declared State Significant Development in April 2025 following an expression of interest process.

<img alt="Aqualand" data-entity-type="file" data-entity-uuid="faf6d97d-2671-454f-b85a-fe1c6a7be608" src="https://s3.ap-southeast-2.amazonaws.com/www.urban.com.au/s3fs-public/inline-images/Screenshot%202026-05-28%20at%209.51.49%E2%80%AFAM.png?VersionId=diVd28OBVr5.YV.7prrOz.uAanwwwm7a" />

St Leonards has been particularly active with new developments in recent weeks. Developer SP Setia’s <a href="https://www.apartments.com.au/news/nsw/first-look-sp-setia-targets-st-leonards-skyline-with-40-storey-tod-tower">plans for a new 42-storey tower</a> recently went on exhibition through the same pathway, while <a href="https://www.apartments.com.au/news/nsw/first-look-stockland-plans-52-storey-538-apartment-st-leonards-tower">Stockland’s 52-storey tower proposal</a> was also recently unveiled.

Aside from the St Leonards project, which is expected to take around nine months to move through the approvals process ahead of a potential 2027 launch, Aqualand is also preparing to launch Boronia, a new apartment project in Roseville comprising around 111 apartments on Larkin Street.

The developer also has approvals in place for the next stage of the Barangaroo precinct, which will feature new residential, retail, hospitality and community uses, alongside a new metro entry across the five-hectare site.

More than 50 new retail destinations are planned for Central Barangaroo, alongside a 270-metre-long boulevard connecting Hickson Park to Nawi Cove. Together with Harbour Park, more than 50 per cent of the precinct will comprise public open space and parkland.

First look: Aqualand joins St Leonards apartment party

Antarctica

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<img src="https://counter.theconversation.edu.au/content/81747/count.gif?distributor=republish-lightbox-advanced" alt="The Conversation" width="1" height="1">
GUEST OBSERVER
Domestic animals are rarely associated with Antarctica. However, before non-native species (bar humans) were excluded from the continent in the 1990s, many travelled to the far south.
These animals included not only the obvious sledge dogs, but also ponies, sheep, pigs, hamsters, hedgehogs and a goat. Perhaps the most curious case occurred in 1933, when US Admiral Richard E. Byrd’s second Antarctic expedition took with it three Guernsey cows. 
The cows, named Klondike Gay Nira, Deerfoot Guernsey Maid and Foremost Southern Girl, plus a bull calf born en route, spent over a year in a working dairy on the Ross Ice Shelf. They returned home to the US in 1935 to considerable celebrity. 
Keeping the animals healthy in Antarctica took a lot of doing – not least, hauling the materials for a barn, a huge amount of feed and a milking machine across the ocean and then the ice. What could have possessed Byrd to take cows to the icy south? 
The answer we suggest in our recently published paper is multi-layered and ultimately points to Antarctica’s complex geopolitical history.
Solving the “milk problem”
The cows’ ostensible purpose was to solve the expedition’s so-called “milk problem”. By the 1930s, fresh milk had become such an icon of health and vigour that it was easy to claim it was needed for the expeditioners’ well-being. Just as important, however, were the symbolic associations of fresh milk with purity, wholesomeness and US national identity. 
Powdered or malted milk could have achieved the same nutritional results. Previous expeditions, including those of Ernest Shackleton and Roald Amundsen, had survived just fine with such products. What’s more, William Horlick of Horlick’s Malted Milk sponsored Byrd’s second Antarctic expedition; the seaplane Byrd used was named for this benefactor. 
So if fresh milk was not actually a health requirement, and other forms were readily available, why go to the trouble of lugging three cows and their accoutrements across the ice?
Maximising publicity
The cows represented a first, and Byrd well knew that “firsts” in the polar regions translated into media coverage. The expedition was privately funded, and Byrd was adept at attracting media attention and hence sponsorship. His backers expected a return, whether in the form of photographs of their product on the ice or mentions in the regular radio updates by the expedition. 
The novelty value that the cows brought to the expedition was a valuable asset in its own right, but Byrd hedged his bets by including a pregnant cow – Klondike was due to give birth just as the expedition ship sailed across the Antarctic Circle. The calf, named “Iceberg”, was a media darling and became better known than the expeditioners themselves. 
The celebrity attached to the cows helped the expedition remain in the headlines throughout its time in Antarctica, and they received an enthusiastic welcome upon its return. Although the unfortunate Klondike, suffering from frostbite, had to be put down mid-expedition, her companions made it home in good condition. They were feted on their return, meeting politicians in Washington, enjoying “hay cocktails” at fancy hotels, and making the front page of The New York Times.
It would be easy, then, to conclude that the real reason Byrd took cows south was for the publicity he knew they would generate, but his interest in the animals may also have had a more politically motivated layer.
Eyeing a territorial claim
A third reason for taking cows to Antarctica relates to the geopolitics of the period and the resonances the cows had with colonial settlement. By the 1930s several nations had claimed sectors of Antarctica. Byrd wanted the US to make its own claim, but this was not as straightforward as just planting a flag on the ice. 
According to the Hughes Doctrine, a claim had to be based on settlement, not just discovery. But how do you show settlement of a continent covered in ice? In this context, symbolic gestures such as running a post office – or farming livestock – are useful. 
Domestic animals have long been used as colonial agents, and cattle in particular were a key component of settler colonialism in frontier America. The image of the explorer-hero Byrd, descended from one of the First Families of Virginia, bringing cows to a new land and successfully farming them evoked this history. 
The cows’ presence in Antarctica helped symbolically to turn the expedition base – not coincidentally named “Little America” – into a frontier town. While the US did not end up making a claim to any sector of Antarctica, the polar dairy represented a novel way of demonstrating national interest in the frozen continent.
The Antarctic cows are not just a quirky story from the depths of history. As well as producing milk, they had promotional and geopolitical functions. On an ice continent, settlement is performed rather than enacted, and even Guernsey cows can be more than they first seem.
<a href="https://theconversation.com/profiles/hanne-e-f-nielsen-139245" target="_blank">Hanne E.F. Nielsen</a> is PhD Candidate in Antarctic Representations, University of Tasmania.
<a href="https://theconversation.com/profiles/elizabeth-leane-267090" target="_blank">Elizabeth Leane</a> is Associate Professor of English and ARC Future Fellow, University of Tasmania.
Both are authors for <a href="https://theconversation.com/au" target="_blank">The Conversation</a>.
</body></html>

j.ballantyne1990-6AQqhLzZaK

Cows in Antarctica? How one expedition milked them for all their worth

<html><body>
<img src="https://counter.theconversation.edu.au/content/80314/count.gif?distributor=republish-lightbox-advanced" alt="The Conversation" width="1" height="1">
GUEST OBSERVER
Icebergs breaking off Antarctica, even massive ones, do not typically concern glaciologists. But the impending birth of a new massive icebergcould be more than business as usual for the frozen continent. 
The Larsen C ice shelf, the fourth-largest in Antarctica, has attracted worldwide attention in the lead-up to calving an iceberg one-tenth of its area – or about half the area of greater Melbourne. It is still difficult to predict exactly when it will break free.
But it’s not the size of the iceberg that should be getting attention. Icebergs calve all the time, including the occasional very large one, with nothing to worry about. Icebergs have only a tiny direct effect on sea level. 
The calving itself will simply be the birth of another big iceberg. But there is valid concern among scientists that the entire Larsen C ice shelf could become unstable, and eventually break up entirely, with knock-on effects that could take decades to play out.
Ice shelves essentially act as corks in a bottle. Glaciers flow from land towards the sea, and their ice is eventually absorbed into the ice shelf. Removal of the ice shelf causes glaciers to flow faster, increasing the rate at which ice moves from the land into the sea. This has a much larger effect on sea level than iceberg calving does.
While the prediction that Larsen C could become unstable is based partly on physics, it is also based on observations. Using aerial and satellite images, scientists have been able to track very similar ice shelves in the past, some of which have been seen to retreat and collapse. 
<h2>The death of an ice shelf</h2>
The most dramatic ice shelf collapse observed so far is that of Larsen C’s neighbour to the north – the imaginatively named Larsen B. Over the course of just six weeks in 2002 the entire ice shelf splintered into dozens of icebergs. Almost immediately afterwards, the glaciers feeding into it sped up by two to six times. Those glaciers continue to flow faster to this day. 
In our new study, published in Earth and Planetary Science Letters, we turn the clock back even further to look at the Wordie ice shelf, on the west coast of the southern Antarctic Peninsula, which began to retreat in the 1960s and eventually disappeared in January 2017. 
Over the past 20 years, observations have shown that the main glacier feeding into the Wordie ice shelf, the Fleming Glacier, has sped up and thinned. Compared with the glaciers feeding Larsen B and C, Fleming Glacier is massive: 80km long, 12km wide, and 600m thick at its front.
<a href="https://www.propertyobserver.com.au/images/2017/07/28/file-20170705-16510-iymhsl.gif" target="_blank">Click to enlarge</a>
<img src="https://www.urban.com.au/images/2017/07/28/file-20170705-16510-iymhsl.gif" alt="">
<div class="enlarge_hint">
Locations of the Larsen C Ice Shelf and the Wordie Ice Shelf-Fleming Glacier system with ice front positions from 1947 to 2016. Author provided
</div>
We used historic aerial photographs from 1966 to create an elevation map of the Fleming Glacier, and compared it to elevation measurements from 2002 to 2015. Between 1966 and 2015 the Fleming Glacier thinned by at least 100m near the front. The thinning rate, which is the elevation change rate, rapidly increased: the thinning rate after 2008 is more than twice that during 2002 to 2008, and four times the average rates from 1966 to 2008.
<a href="https://www.propertyobserver.com.au/images/2017/07/28/file-20170629-5317-1j5zalo.png" target="_blank">Click to enlarge</a>
<img src="https://www.urban.com.au/images/2017/07/28/file-20170629-5317-1j5zalo.png" alt="">
Ice thinning rate of the Fleming Glacier region during (a) 2002-2008 and (b) 2008-2015. Author provided
Ice flow speeds have also increased by more than 400m per year at the front since 2008. This is <a href="https://www.the-cryosphere-discuss.net/tc-2017-75/">the largest speed change in recent years of any glacier in Antarctica</a>. These changes all point to ice shelf collapse as the cause.
We estimate the total glacier ice volume lost from all glaciers that feed the Wordie is 179 cubic kilometres since 1966, or 319 times the volume of Sydney Harbour. The weight of this ice moving off the land and into the ocean has caused the bedrock beneath the glaciers to lift by more than 50mm. 
Other research has suggested this lift could have acted to slow the glacier’s retreat, but it’s clear that the bedrock deformation has not stopped the ice movement speeding up. It seems the Fleming Glacier has a long way to go before it will return to a new stable state (in which snowfall feeding the glacier equals the ice flowing into the oceans).
Fifty years after the Wordie Ice Shelf began to collapse, the major feeding glaciers continue to thin and flow faster than before. 
We can’t yet predict the full consequences of the new iceberg calving from Larsen C. But if the ice shelf does begin to retreat or collapse, history tells us it is very possible that its glaciers will flow faster – making yet more sea level rise inevitable.
<a href="https://theconversation.com/profiles/chen-zhao-382317" target="_blank">Chen Zhao</a> is PhD candidate of Antarctic Science, University of Tasmania
<a href="https://theconversation.com/profiles/christopher-watson-159793" target="_blank">Christopher Watson</a> is Senior Lecturer, Surveying and Spatial Sciences, School of Land and Food, University of Tasmania.
<a href="https://theconversation.com/profiles/matt-king-15004" target="_blank">Matt King</a> is Professor, Surveying &amp; Spatial Sciences, School of Land and Food, University of Tasmania.
All are authors for <a href="https://theconversation.com/au" target="_blank">The Conversation</a>.
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Don’t worry about the huge Antarctic iceberg – worry about the glaciers behind it

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<img src="https://counter.theconversation.edu.au/content/80140/count.gif?distributor=republish-lightbox-advanced" alt="The Conversation" width="1" height="1">
GUEST OBSERVER
When you think of Antarctica, you probably picture vast, continuous ice sheets and glaciers, with maybe a penguin or two thrown in.
Yet most Antarctic plants and animals live in the permanently ice-free areas that cover about 1 percent of the continent. Our new research predicts that these areas could grow by a quarter during this century, with mixed prospects for the species that currently live there. 
Besides everyone’s favourite Emperor and Adélie penguins, terrestrial Antarctic species also include beautiful mosses, lichens, two types of flowering plants, and a suite of hardy invertebrates such as nematodes, springtails, rotifers and tardigrades, many of which are found nowhere else on Earth. Tardigrades – tiny creatures sometimes nicknamed “waterbears” – are so tough they can survive in space.
Antarctica’s ice-free areas are currently limited to a scattering of rocky outcrops along the coastline, or cliff faces, or the tops of mountain ranges. They form small patches of suitable habitat in a huge sea of ice, much like islands. 
As a result, the plants and animals that live there are often isolated from each other. But as Antarctica’s climate warms, we expect ice-free areas to get bigger and eventually start joining up. This would create more habitat for native species, but also new opportunities for non-native species to spread. 
Our study, published today in Nature, forecasts that climate change will expand Antarctica’s ice-free areas over the course of this century. Under the most severe scenario that we modelled (which is also the one on which the globe is currently tracking), more than 17,000 square km of new ice-free area could emerge across the continent by 2100. 
This would increase the current total ice-free area by nearly a quarter. The majority of this new ice-free land will be on the Antarctic Peninsula, which could have three times as much ice-free area as it does today.  
Brave new world
As the ice-free areas expand, the distances between them will decrease, giving plants and animals more opportunity to spread through the landscape. On the Antarctic Peninsula, which has already warmed more than anywhere else in Antarctica, many of the ice-free patches will expand so much that they will start joining together.
Will this increase in habitat availability benefit the plants and animals that live there? It will definitely provide new opportunities for some native plants and animals to expand their range and colonise new areas. The warming climate may also give a boost to species that are currently hampered by the lack of warmth, nutrients and water. Some Antarctic mosses, for example, are expected to grow faster as temperatures rise, and Antarctica’s two flowering plant species are already expanding southward.
However, the potential benefits seem likely to be outweighed by the negatives. The joining-up of habitat patches could allow species that have been isolated for much of their evolutionary past to meet suddenly. If the newcomers to a particular area outcompete the native species, then it may lead to localised extinctions. Over the coming centuries this could lead to the loss of many plants and animals, and the homogenisation of Antarctica’s ecosystems.
Antarctic aliens
An even bigger concern is that Antarctica’s great thaw could provide new opportunities for species to invade. Antarctica’s best bulwark against non-native species is its harsh climate and extreme weather, to which native Antarctic species have spent many thousands of years adapting. 
We already know that many plants and invertebrates are reaching Antarctica, most often in food or cargo shipments. As the climate warms, some of these non-native species may be able to establish themselves on the Antarctic Peninsula, and the increasing connectivity will allow them to easily move through the landscape. Many of these animals and plants may become invasive, competing with the native species for space and resources. 
We don’t know how Antarctica’s species will cope with the increasing competition. But if the sub-Antarctic islands provide any indication, the outlook is depressing. Australia’s World Heritage-listed Macquarie Island, for example, was severely impacted by invasive cats, rats, rabbits and mice (although it has since been declared free of these pests after an intensive eradication effort).
Several non-native species have already come to Antarctica, including the invasive annual meadowgrass Poa annua (a common weed around the world), which has colonised newly ice-free areas left behind by retreating glaciers. It is thought to outcompete Antarctica’s native plants, although we don’t yet know what the impact will be on animals. 
Humans – both scientists and tourists – are key transporters of non-native species to the continent, and tourist numbers continue to grow (almost 37,000 visited in the 2016-17 summer). 
Biosecurity is paramount for the ongoing protection of Antarctica. If bags, shoes, clothes and field equipment are not properly cleaned and inspected before arriving on the continent, then non-native seeds, microbes and insects could be transported to Antarctica and begin to spread. 
We call for protection of ice-free areas that will remain intact in a changing climate, and for the Antarctic scientific and tourism communities to pinpoint key areas where greater biosecurity and monitoring for invasive species may be needed.
<a href="https://theconversation.com/profiles/jasmine-lee-171931" target="_blank">Jasmine Lee</a> is PhD candidate, biodiversity conservation and climate change, The University of Queensland.
<a href="https://theconversation.com/profiles/justine-shaw-299755" target="_blank">Justine Shaw</a> is Conservation Biologist, The University of Queensland.
<a href="https://theconversation.com/profiles/richard-fuller-169469" target="_blank">Richard Fuller</a> is Associate Professor in Biodiversity and Conservation, The University of Queensland.
All are authors for <a href="https://theconversation.com/au" target="_blank">The Conversation</a>.
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