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‘Refrain from returning': New warning as flood risk remains

‘Refrain from returning': New warning as flood risk remains

Perth Now23-05-2025
'The Premier has announced, of course, some of the support that is there,' Mr Albanese said.
'Can I say that on top of the 16 local government areas in which we have announced disaster assistance, I can announce that we're extending this to three additional local government areas: Armidale, Muswellbrook and Walcha.
'That support will be made available as soon as possible.
'In addition to that, the disaster recovery allowance that we have indicated in four local government areas - Kempsey, Port Macquarie, Mid Coast and Dungog - that provides for up to 13 weeks pay for people who are employees unable to work or people who are sole traders, self-employed to that will be made available from 2 pm on Monday. This coming Monday.'
'Please listen to the advice and follow it,' Mr Albanese said.
'Because tragically, we have seen four people lose their lives, three of which are associated with driving through flood waters.
'If it's flooded, forget it. We keep saying it. You can't tell what is underneath the water as you make these assessments, and it is just not worth people taking risks at this point in time.
'This is a dangerous circumstance and even when the rain stops falling from the sky, sometimes the waters keep rising for a period of time.
'That is the case in the mid-north coast.'
'The Federal Government, State Government, Local Government, as well as the whole of the people of NSW and indeed the people of Australia, are with you at this time,' Prime Minister Anthony Albanese said.
'Tragically, we're seeing more extreme weather events. They're occurring more frequently and they're more intense.
'This flood area that goes all the way from the North Coast of NSW, right down really to the Victorian border, but particularly with intensity from the Kempsey area down to the bottom of the Central Coast, is having a real impact on people and communities.
'Can I give a shout-out to the SES and the wonderful volunteers?
'These people are heroes.
'They are helping their neighbours, they're helping their community, but they're also helping people from other parts of NSW.
'We had the privilege of saying thank you to the volunteers at the Maitland SES headquarters just a while ago, and there I met people from my local hood, someone from Leichhardt was there helping out.'
'I want to announce with the Prime Minister that assistance will begin to flow soon,' NSW Premier Chris Minns said alongside Anthony Albanese.
'Today, I can announce in conjunction with the Commonwealth Government that personal hardship assistance grants of $180 per individual or $900 per family, will be available as soon as possible.
'It's not today, but I wanted to announce that that funding is on the way for communities that are subject to an evacuation order, again jointly funded by the state and the Commonwealth Government, $1 million community recovery grants for local councils, $1 million for each of the local councils that are affected by emergency orders will flow soon.
'Thank the Commonwealth for that.'
'It's also important to note that there have terribly been four fatalities so far, and the community will rightly be devastated by that,' Mr Minns said.
'I have to report the SES and emergency services, including the VRE, Polair NSW Police, completed 678 flood rescues, including 177 flood rescues in the last 24 hours.
'An amazing, heroic logistical effort where in very difficult circumstances, many volunteers put themselves in harm's way to rescue a complete stranger.
'Over the coming days and weeks, we will hear scores of stories of locals being plucked out of impossible, desperate situations.
'So, of course, we mourn the people that have passed. But I do think it's important to say without the SES, without the volunteers, we would have had hundreds of deaths.'
NSW Premier Chris Minns and Prime Minister Anthony Albanese are giving an update on the NSW floods.
'The weather that has brought such devastation and an enormous anxiety to the local community is moving south, which is good news,' Mr Minns said on Friday.
'However, we need to report that there are still 39 emergency warnings still in place. Many of them are evacuation orders, and we're asking people to look at the app rather than the sky, to make a determination about whether it's safe to go home or to use local roads.
'It's still incredibly important that the community listens to emergency service workers, to local police, to the SES, to anyone who's an official who has the latest information, they may be aware of a set of circumstances that aren't immediately apparent.
'That's how we're going to keep people alive during this difficult period.'
The formal distribution of preferences in the Sydney seat of Bradfield has sliced independent Nicolette Boele's lead over Liberal contender Gisele Kapterian down to just five votes.
As the distributions are carried out, minor discrepancies are often found, which have cut Ms Boele's lead from 29 votes earlier this morning, now down to five.
If this distribution process results in a margin of less than 100 votes, there will automatically be a recount, which could take another few weeks.
Prime Minister Anthony Albanese and NSW Premier Chris Minns have arrived at the SES centre in Maitland.
They will provide an update on the NSW floods and response at 12.45pm AEST.
'We do have blue sky in some of these locations where we've got evacuation warnings in place,' Superintendent Dallas Burnes told 7NEWS.
'Can I ask the community in those locations to refrain from returning.
'We don't know if it's safe on those roads. We don't know if the power is safe. We don't know if the sewer systems are safe yet.
'We will take out those emergency warnings when it's safe to do so.
'We're also concerned about some further river rises that might be possible because of rainfall up in the higher catchment areas, which is still to come downstream.
'So you maybe standing in beautiful sunshine at the moment, but the river may still rise up further than what it is at the moment, probably not to the heights that they've experienced in the last 48 hours, but it still may pop back up again.
'Please be cautious.'
Senior manager of state operations for the NSW SES, Superintendent Dallas Burnes says operations in flood-affected areas are 'intensive' and ongoing.
'So, still a very intensive operation going on in the Mid North coast. 170 flood rescues across the state in the last 24 hours, 150 of them in our northern zone, seven in metro zone, dealing with the flash flooding and people driving into flood waters and getting stuck in our metropolitan areas,' he told 7NEWS.
'So in the northern zone, the focus today is really going to be on resupply for those 50,000 people who are currently isolated, a large amount of them in Taree, obviously, until the M1 gets cleared and we get access into that town there, normal supply chains are down.
'So varying types of resupply depending on if it's an individual house that's isolated, a village or a town, those resupplies can be happening by aviation boats, cars, large trucks, a lot of planning going into it, and we'll be doing that for the next 48 hours in some of those locations, possibly out through to Sunday.
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‘We grabbed the cat and got out': The waterside dwellers facing rising sea levels
‘We grabbed the cat and got out': The waterside dwellers facing rising sea levels

Sydney Morning Herald

time2 days ago

  • Sydney Morning Herald

‘We grabbed the cat and got out': The waterside dwellers facing rising sea levels

On April 1, just before midnight, as a 2.1-metre king tide smashed the NSW coastline, real estate agent and father-to-be Steve Psomadelis got up for a drink of water. Underneath the floorboards of his low-set 1950s brick house at Dolls Point, on the southern reaches of Sydney's Botany Bay, he could hear the sound of gushing water. The tide had breached the seawall protecting the foreshore, inundating the waterfront promenade, main roadway and beachfront houses. At the Psomadelises' house, a block back from the beach, water was seeping into the laundry and lapping at the sunroom doors. In the driveway, the bonnet of his wife's car was underwater. 'I called out to my wife, 'We're flooding,' ' Psomadelis recalls. Minutes later, seawater was swirling above the top step. Just as Psomadelis and his pregnant wife Stephanie were attempting to climb out a side window, the SES arrived to evacuate them. 'We grabbed the cat and got out of there,' Psomadelis says. His street flooded to knee-height, along with the beachfront strip and two neighbouring streets. Water rose through the floorboards of their house, and sand was dumped across their front yard. They lost two fridges and a couch, and Stephanie's car was a write-off. Between rising sea levels and more frequent extreme-weather events, Australia's coastlines are being battered by the very visible effects of climate change. Has the dream of living by the beach become a nightmare? And what will Australia's coastlines look like in decades to come? 'The April king tide was a once-in-50-year event, and it's happened twice in the last 10 years,' says Psomadelis, who bought his house in 2022, seven years after Dolls Point last flooded in the April 2015 king tide. His neighbours – some who have lived there for decades – also blame infrastructure interventions on Botany Bay including two airport runways and a desalination plant, which they say have changed tidal patterns. 'Is it worth it? Yeah, for a place like this, it is,' says Psomadelis. 'I can see the beach, and it's a beautiful area. We won't leave over something like this.' Only just the beginning The bad news for Australia's coast-loving communities is that rising sea levels are leading to more frequent and extreme events, resulting in severe coastal erosion and inundation of low-lying areas. The drivers behind coastal erosion are complex: tidal patterns, storm systems, ocean temperatures and broader climate cycles like El Niño and La Niña. But rising sea levels complicate the picture further. The recent east coast low, described by meteorologists as a 'bomb cyclone', and the first to hit the NSW coast since 2022, has brought the topic into sharp focus. It's likely to cause coastal erosion and damage to infrastructure between Seal Rocks and the NSW-Victorian border. UNSW coastal erosion expert Associate Professor Mitchell Harley says there's no evidence that east coast lows have become more frequent or severe in recent years. However, rising sea levels means their impact on the built coastline will be more profound. East coast lows are the subject of ongoing research, says Harley, as present climate models lack the resolution to truly capture their unpredictable behaviour. Sea levels have been on an upward trajectory since records were first collected in the 1880s. But satellite monitoring over the past three decades shows a clear pattern: not only are sea levels rising, the rate is accelerating. The Intergovernmental Panel on Climate Change's (IPCC) sixth report, published in 2021, found a global mean sea level rise per year of 3.2 millimetres from 1993 to 2015, and 3.6 millimetres between 2006 and 2015. A 2024 NASA analysis of satellite data found a faster than expected rise last year alone, largely due to thermal expansion of seawater. Scientists had anticipated an increase of 4.3 millimetres but instead recorded 5.9 millimetres – a direct result of 2024 being the hottest year on record. Though these increments sound minuscule, the impact on coastal communities can be monumental. 'As a general rule of thumb, for every 10 centimetres of sea level rise, you might see three times more extreme flooding events, depending on your location,' says Dr Julian O'Grady, a sea level scientist with the CSIRO. The IPCC's projections for sea level rise are sobering. They vary depending on location and whether we can meet Paris Agreement emissions targets. Even if global warming is limited to 1.5 degrees above pre-industrial levels, the IPCC is predicting global sea level rises of 0.15-0.23 metres by 2050. By 2100, under very high emission scenarios, it could be 1 metre. Extreme sea level events that occurred once per century will be 20 to 30 times more frequent by 2050, the IPCC says. Along the NSW coast, state government data predicts rises of up to 2.3 metres by 2100 and 5.5 metres by 2150 under very high emissions – figures which, unlike the IPCC's, include the impact of melting ice sheets. CSIRO modelling for Melbourne's Port Phillip Bay, released in 2024, predicts council areas like Hobsons Bay, Greater Geelong, Frankston and Mornington Peninsula could see three times the current degree of sea level inundation under a scenario in which sea levels rise by 1.4 metres by 2100. Add king tides, extreme weather and storm surges, and it's a disastrous picture for anyone living within a few blocks of a beach. O'Grady knows just how vulnerable Australia's coastline is, both as a scientist and as a beach lover. His family camps each year at Pambula Beach on the NSW South Coast. Several decades ago, a storm eroded the front row of campsites. The local community restored a wide, vegetated dune – a natural barrier that now protects the campsite and caravan park. 'My kids hear the story every year,' says O'Grady, who explains to them that regular tides and even king tides are highly predictable. But it's the forces caused by anthropogenic (human-caused) climate change – leading to heavier rain events, more intense cyclones and rising sea levels caused by glacial melting and thermal expansion – that are pushing ocean water further onto land and increasing the potential for coastal erosion. O'Grady and his team are tracking how often these events occur, how high sea levels rise during them and how climate change is increasing their frequency and intensity, and providing web-based tools and data for local councils. 'The coastal councils are doing a great deal to understand and adapt,' he says. 'But we need to keep providing information about climate change and sea level rise and how that might impact the coast.' Coastal hotspots Environmental scientists now favour natural strategies to lessen wave impact and slow coastal erosion. This includes beach nourishment, dune revegetation, retrofitting existing sea walls with more vegetation cover or, in some cases, creating artificial reefs offshore. In many local council areas, beach nourishment programs have been underway for years. On the Gold Coast, dredging ships suck up seafloor sediment and pump it back into surf zones, reinforcing dunes and widening the beach. 'During Cyclone Alfred, that extra sand made a real difference,' O'Grady says. 'But what works in one place won't necessarily work somewhere else. Where nature-based solutions are not possible, protecting people's homes, businesses and infrastructure might require sea walls.' Mention sea walls on Sydney's northern beaches and you might have to swim for cover. In June 2016, Collaroy-Narrabeen beach became an epicentre of coastal erosion after a violent East Coast low lashed the NSW coastline and stripped the region's beaches of sand. A home swimming pool teetering above the dunes at Collaroy made global news. In response, residents funded a $17 million, seven-metre-high concrete sea wall to protect their multimillion-dollar beachfront properties. State and local government tipped in $3.5 million. Furious locals, worried about beach access and accelerated erosion, protested, forming a human 'line in the sand'. Expect to see more sea walls in targeted locations around Australia. Recent satellite imagery confirms that erosion is emerging not as a broad, sweeping pattern, but concentrated in known hotspots – especially around tidal inlets, hard structures and headlands where the coastline is more dynamic. In NSW, places such as Collaroy-Narrabeen, Cronulla and Palm Beach in Sydney; Wamberal Beach and The Entrance on the NSW Central Coast; and at Port Stephens, Yamba and Byron Bay further north. In Victoria, hotspots already showing accelerated change include Inverloch on the Bass Coast, Silverleaves on Port Phillip Island, and Apollo Bay and Port Fairy on the Great Ocean Road. Loading Inverloch, which is exposed to Bass Strait swells, has lost about two metres of beach per year since the 1990s, according to satellite imagery. Beach loss has accelerated since 2010, with scientists and locals describing it as 'significant'. A resilience plan, begun by the Victorian government in 2021 and released in draft form for comment in late 2024, recommends a range of solutions linked to specific environmental triggers. For now, it proposes 'adaptation' (dune restoration and beach nourishment) and 'accommodation' (lifting, upgrading or reinforcing houses, buildings and infrastructure). A sea level rise of 0.2 metres by 2040, or one of six specific triggers, would prompt 'major project engineering' such as seawalls, groynes or breakwaters, followed by 'retreat' at 0.5 metres by 2070 – decommissioning buildings and relocating homes. Locals say two triggers have already been met, and they've watched the water creep higher year after year. They're worried there's still no plan for a sea wall and no talk of house buybacks. 'It's just money going down the drain, pushing sand around the beach,' says Inverloch Surf Life Saving Club president Glenn Arnold. The surf club, perched atop a beach dune on the ocean side of the road, was sandbagged six years ago. Those sandbags are now failing, with large swells in recent months forcing Bass Coast Shire Council to undertake urgent sand re-nourishment works. The club is the 'canary in the coalmine', says Arnold – and behind it lies several streets of oceanfront homes. 'No one is panic-selling yet but in the past, there was a degree of complacency,' Arnold says. 'People were thinking, 'Surely no council, no state government is going to let 300 to 400 houses sink into the ocean.' Now they want their voice heard. People's homes are at risk when they don't need to be. It's a simple fix, it just takes political will and money.' Allison and Kim White, both 68, bought their beach house in Inverloch's Lohr Avenue in 2012 and have lived there full-time since COVID-19. Just one block from the beach, they've had a front-row seat to the ocean's relentless advance. 'We used to walk over three sand dunes to get to the water,' says Kim. 'Now we walk over one-and-a-half. We can see the ocean from the road now. Before we couldn't.' The Whites worry about young families with large mortgages who are anxious that house prices will plummet. For retirees like themselves, the financial threat is also confronting. 'Regardless of whether you are living here full-time or whether you own a beach house, the impact is the same,' Allison says. 'It's a huge investment. For a lot of retirees, it's their last hurrah, their entire nest egg – all they have for their old age, their aged care and to leave their children.' The Whites say Inverloch's coastal erosion problem is well known to state politicians, but the urgency has not yet penetrated either political or public consciousness. They are concerned that there are no permanent engineering works planned – just more sand. For a potential funding solution, they point to Western Australia's Royalties for Regions program, where coastal towns like Esperance, Denmark and Geraldton have received direct, targeted investment. 'They're talking the talk, but they're not walking the walk,' Allison says of the Victorian state government. 'It's happening before our eyes, and it's been happening for a long time. What is the cut-off point?' It's a question the Whites can't bear to ask themselves. In their minds, they tally the collective value of homes at immediate risk – about 200 homes worth roughly $1 million each – plus the town's sewerage system, a caravan park and the RACV Club Resort. If the coast road is breached, the town will be cut off from Cape Paterson and the RACV resort, which is a major employer in the town, and vital infrastructure will be destroyed. The thought is overwhelming – for everyone. 'We have not looked at an alternative, it's too depressing,' says Allison. 'At our stage of life, we're not ready for a retirement village. And I doubt whether any compensation you get back would be worth what you put in.' The long view The IPCC says coastal communities must take a long-term approach – 100 years and beyond – to best respond to rising sea-water levels. It ranks beach nourishment as one of the least effective strategies – effective for around 15 years. Elevating houses keeps seas at bay for 30 years. Levees and sea walls work for about 50 and 100 years respectively. 'Planned relocation' is the most effective long-term solution of all. For someone who's studied his field for more than 20 years, coastal erosion expert Dr Mitchell Harley didn't start out as a beach lover. 'I was born and raised on Sydney's northern beaches, but I wasn't your typical beach kid,' says Harley. His passion for maths and science led him to a degree in environmental engineering, and later, a PhD – one that saw him driving a quad bike up and down Narrabeen beach every month for years, collecting data. 'It sounded like a good gig,' he laughs. 'And that's how I ended up studying coastlines.' Harley is one of Australia's leading coastal researchers. He names the June 2016 East Coast low, which stripped sand from Collaroy-Narrabeen and other NSW beaches, as one of the most memorable events of his career. It was a moment that captured for him just how vulnerable Australia's built coastline is. 'I knew that beach [Narrabeen] like the back of my hand – and suddenly, it was unrecognisable. Just gone, overnight.' Harley's research suggests that not all beaches will suffer equally. Some may look unchanged, while others could shrink rapidly or disappear altogether. In remote parts of the country, where there is little housing or infrastructure, beaches will migrate and we won't even notice. The real issue? Planning decisions made a century ago, and in the decades since. Loading 'Places like Collaroy and Narrabeen were zoned too close to the coast back in the early 1900s,' he says. 'We're still paying for those decisions 120 years later. But what really concerns me now is that we're making similar mistakes.' Harley and his team work like storm-chasers, deploying technology and aircraft to scan all Australia's 11,000 beaches before and after extreme weather events. One of their most powerful tools is CoastSnap, a citizen science initiative where people use their smartphones to photograph beaches. Harley collates the photographs to measure and track beach erosion over time. But good data won't be enough without strong planning policy and funding, he warns. His research aims to identify coastal setback lines – 'basically the line in front of which you shouldn't be building', he says. He wants to see all tiers of government maintain the dynamic coast and only build in zones which are safe from erosion. 'Beaches act as natural buffers,' he says. 'If we lose that, the waves will break right against sea walls and promenades. It'll be more hazardous, more expensive to manage and much less accessible.' So what will Australian beaches look like in 2050 or 2100? 'Some beaches will look relatively similar to what they are today,' Harley predicts. 'Others will change. Some urban beaches will have very little sand and we'll be climbing off staircases, straight into the water. We're going to lose access in some places because the beach will be more hazardous. For many parts of the country, it's likely that the sand beaches that we know today will no longer exist, without expensive interventions.' Harley points to Manly's Fairy Bower. A 1956 painting held in the State Library of NSW depicts a small sandy beach, tucked in against the curve of the roadway. Today, it's a rocky platform with a tidal pool protected by a small sea wall. 'We'll have to learn to enjoy our beaches in different ways,' he says.

‘We grabbed the cat and got out': The waterside dwellers facing rising sea levels
‘We grabbed the cat and got out': The waterside dwellers facing rising sea levels

The Age

time2 days ago

  • The Age

‘We grabbed the cat and got out': The waterside dwellers facing rising sea levels

On April 1, just before midnight, as a 2.1-metre king tide smashed the NSW coastline, real estate agent and father-to-be Steve Psomadelis got up for a drink of water. Underneath the floorboards of his low-set 1950s brick house at Dolls Point, on the southern reaches of Sydney's Botany Bay, he could hear the sound of gushing water. The tide had breached the seawall protecting the foreshore, inundating the waterfront promenade, main roadway and beachfront houses. At the Psomadelises' house, a block back from the beach, water was seeping into the laundry and lapping at the sunroom doors. In the driveway, the bonnet of his wife's car was underwater. 'I called out to my wife, 'We're flooding,' ' Psomadelis recalls. Minutes later, seawater was swirling above the top step. Just as Psomadelis and his pregnant wife Stephanie were attempting to climb out a side window, the SES arrived to evacuate them. 'We grabbed the cat and got out of there,' Psomadelis says. His street flooded to knee-height, along with the beachfront strip and two neighbouring streets. Water rose through the floorboards of their house, and sand was dumped across their front yard. They lost two fridges and a couch, and Stephanie's car was a write-off. Between rising sea levels and more frequent extreme-weather events, Australia's coastlines are being battered by the very visible effects of climate change. Has the dream of living by the beach become a nightmare? And what will Australia's coastlines look like in decades to come? 'The April king tide was a once-in-50-year event, and it's happened twice in the last 10 years,' says Psomadelis, who bought his house in 2022, seven years after Dolls Point last flooded in the April 2015 king tide. His neighbours – some who have lived there for decades – also blame infrastructure interventions on Botany Bay including two airport runways and a desalination plant, which they say have changed tidal patterns. 'Is it worth it? Yeah, for a place like this, it is,' says Psomadelis. 'I can see the beach, and it's a beautiful area. We won't leave over something like this.' Only just the beginning The bad news for Australia's coast-loving communities is that rising sea levels are leading to more frequent and extreme events, resulting in severe coastal erosion and inundation of low-lying areas. The drivers behind coastal erosion are complex: tidal patterns, storm systems, ocean temperatures and broader climate cycles like El Niño and La Niña. But rising sea levels complicate the picture further. The recent east coast low, described by meteorologists as a 'bomb cyclone', and the first to hit the NSW coast since 2022, has brought the topic into sharp focus. It's likely to cause coastal erosion and damage to infrastructure between Seal Rocks and the NSW-Victorian border. UNSW coastal erosion expert Associate Professor Mitchell Harley says there's no evidence that east coast lows have become more frequent or severe in recent years. However, rising sea levels means their impact on the built coastline will be more profound. East coast lows are the subject of ongoing research, says Harley, as present climate models lack the resolution to truly capture their unpredictable behaviour. Sea levels have been on an upward trajectory since records were first collected in the 1880s. But satellite monitoring over the past three decades shows a clear pattern: not only are sea levels rising, the rate is accelerating. The Intergovernmental Panel on Climate Change's (IPCC) sixth report, published in 2021, found a global mean sea level rise per year of 3.2 millimetres from 1993 to 2015, and 3.6 millimetres between 2006 and 2015. A 2024 NASA analysis of satellite data found a faster than expected rise last year alone, largely due to thermal expansion of seawater. Scientists had anticipated an increase of 4.3 millimetres but instead recorded 5.9 millimetres – a direct result of 2024 being the hottest year on record. Though these increments sound minuscule, the impact on coastal communities can be monumental. 'As a general rule of thumb, for every 10 centimetres of sea level rise, you might see three times more extreme flooding events, depending on your location,' says Dr Julian O'Grady, a sea level scientist with the CSIRO. The IPCC's projections for sea level rise are sobering. They vary depending on location and whether we can meet Paris Agreement emissions targets. Even if global warming is limited to 1.5 degrees above pre-industrial levels, the IPCC is predicting global sea level rises of 0.15-0.23 metres by 2050. By 2100, under very high emission scenarios, it could be 1 metre. Extreme sea level events that occurred once per century will be 20 to 30 times more frequent by 2050, the IPCC says. Along the NSW coast, state government data predicts rises of up to 2.3 metres by 2100 and 5.5 metres by 2150 under very high emissions – figures which, unlike the IPCC's, include the impact of melting ice sheets. CSIRO modelling for Melbourne's Port Phillip Bay, released in 2024, predicts council areas like Hobsons Bay, Greater Geelong, Frankston and Mornington Peninsula could see three times the current degree of sea level inundation under a scenario in which sea levels rise by 1.4 metres by 2100. Add king tides, extreme weather and storm surges, and it's a disastrous picture for anyone living within a few blocks of a beach. O'Grady knows just how vulnerable Australia's coastline is, both as a scientist and as a beach lover. His family camps each year at Pambula Beach on the NSW South Coast. Several decades ago, a storm eroded the front row of campsites. The local community restored a wide, vegetated dune – a natural barrier that now protects the campsite and caravan park. 'My kids hear the story every year,' says O'Grady, who explains to them that regular tides and even king tides are highly predictable. But it's the forces caused by anthropogenic (human-caused) climate change – leading to heavier rain events, more intense cyclones and rising sea levels caused by glacial melting and thermal expansion – that are pushing ocean water further onto land and increasing the potential for coastal erosion. O'Grady and his team are tracking how often these events occur, how high sea levels rise during them and how climate change is increasing their frequency and intensity, and providing web-based tools and data for local councils. 'The coastal councils are doing a great deal to understand and adapt,' he says. 'But we need to keep providing information about climate change and sea level rise and how that might impact the coast.' Coastal hotspots Environmental scientists now favour natural strategies to lessen wave impact and slow coastal erosion. This includes beach nourishment, dune revegetation, retrofitting existing sea walls with more vegetation cover or, in some cases, creating artificial reefs offshore. In many local council areas, beach nourishment programs have been underway for years. On the Gold Coast, dredging ships suck up seafloor sediment and pump it back into surf zones, reinforcing dunes and widening the beach. 'During Cyclone Alfred, that extra sand made a real difference,' O'Grady says. 'But what works in one place won't necessarily work somewhere else. Where nature-based solutions are not possible, protecting people's homes, businesses and infrastructure might require sea walls.' Mention sea walls on Sydney's northern beaches and you might have to swim for cover. In June 2016, Collaroy-Narrabeen beach became an epicentre of coastal erosion after a violent East Coast low lashed the NSW coastline and stripped the region's beaches of sand. A home swimming pool teetering above the dunes at Collaroy made global news. In response, residents funded a $17 million, seven-metre-high concrete sea wall to protect their multimillion-dollar beachfront properties. State and local government tipped in $3.5 million. Furious locals, worried about beach access and accelerated erosion, protested, forming a human 'line in the sand'. Expect to see more sea walls in targeted locations around Australia. Recent satellite imagery confirms that erosion is emerging not as a broad, sweeping pattern, but concentrated in known hotspots – especially around tidal inlets, hard structures and headlands where the coastline is more dynamic. In NSW, places such as Collaroy-Narrabeen, Cronulla and Palm Beach in Sydney; Wamberal Beach and The Entrance on the NSW Central Coast; and at Port Stephens, Yamba and Byron Bay further north. In Victoria, hotspots already showing accelerated change include Inverloch on the Bass Coast, Silverleaves on Port Phillip Island, and Apollo Bay and Port Fairy on the Great Ocean Road. Loading Inverloch, which is exposed to Bass Strait swells, has lost about two metres of beach per year since the 1990s, according to satellite imagery. Beach loss has accelerated since 2010, with scientists and locals describing it as 'significant'. A resilience plan, begun by the Victorian government in 2021 and released in draft form for comment in late 2024, recommends a range of solutions linked to specific environmental triggers. For now, it proposes 'adaptation' (dune restoration and beach nourishment) and 'accommodation' (lifting, upgrading or reinforcing houses, buildings and infrastructure). A sea level rise of 0.2 metres by 2040, or one of six specific triggers, would prompt 'major project engineering' such as seawalls, groynes or breakwaters, followed by 'retreat' at 0.5 metres by 2070 – decommissioning buildings and relocating homes. Locals say two triggers have already been met, and they've watched the water creep higher year after year. They're worried there's still no plan for a sea wall and no talk of house buybacks. 'It's just money going down the drain, pushing sand around the beach,' says Inverloch Surf Life Saving Club president Glenn Arnold. The surf club, perched atop a beach dune on the ocean side of the road, was sandbagged six years ago. Those sandbags are now failing, with large swells in recent months forcing Bass Coast Shire Council to undertake urgent sand re-nourishment works. The club is the 'canary in the coalmine', says Arnold – and behind it lies several streets of oceanfront homes. 'No one is panic-selling yet but in the past, there was a degree of complacency,' Arnold says. 'People were thinking, 'Surely no council, no state government is going to let 300 to 400 houses sink into the ocean.' Now they want their voice heard. People's homes are at risk when they don't need to be. It's a simple fix, it just takes political will and money.' Allison and Kim White, both 68, bought their beach house in Inverloch's Lohr Avenue in 2012 and have lived there full-time since COVID-19. Just one block from the beach, they've had a front-row seat to the ocean's relentless advance. 'We used to walk over three sand dunes to get to the water,' says Kim. 'Now we walk over one-and-a-half. We can see the ocean from the road now. Before we couldn't.' The Whites worry about young families with large mortgages who are anxious that house prices will plummet. For retirees like themselves, the financial threat is also confronting. 'Regardless of whether you are living here full-time or whether you own a beach house, the impact is the same,' Allison says. 'It's a huge investment. For a lot of retirees, it's their last hurrah, their entire nest egg – all they have for their old age, their aged care and to leave their children.' The Whites say Inverloch's coastal erosion problem is well known to state politicians, but the urgency has not yet penetrated either political or public consciousness. They are concerned that there are no permanent engineering works planned – just more sand. For a potential funding solution, they point to Western Australia's Royalties for Regions program, where coastal towns like Esperance, Denmark and Geraldton have received direct, targeted investment. 'They're talking the talk, but they're not walking the walk,' Allison says of the Victorian state government. 'It's happening before our eyes, and it's been happening for a long time. What is the cut-off point?' It's a question the Whites can't bear to ask themselves. In their minds, they tally the collective value of homes at immediate risk – about 200 homes worth roughly $1 million each – plus the town's sewerage system, a caravan park and the RACV Club Resort. If the coast road is breached, the town will be cut off from Cape Paterson and the RACV resort, which is a major employer in the town, and vital infrastructure will be destroyed. The thought is overwhelming – for everyone. 'We have not looked at an alternative, it's too depressing,' says Allison. 'At our stage of life, we're not ready for a retirement village. And I doubt whether any compensation you get back would be worth what you put in.' The long view The IPCC says coastal communities must take a long-term approach – 100 years and beyond – to best respond to rising sea-water levels. It ranks beach nourishment as one of the least effective strategies – effective for around 15 years. Elevating houses keeps seas at bay for 30 years. Levees and sea walls work for about 50 and 100 years respectively. 'Planned relocation' is the most effective long-term solution of all. For someone who's studied his field for more than 20 years, coastal erosion expert Dr Mitchell Harley didn't start out as a beach lover. 'I was born and raised on Sydney's northern beaches, but I wasn't your typical beach kid,' says Harley. His passion for maths and science led him to a degree in environmental engineering, and later, a PhD – one that saw him driving a quad bike up and down Narrabeen beach every month for years, collecting data. 'It sounded like a good gig,' he laughs. 'And that's how I ended up studying coastlines.' Harley is one of Australia's leading coastal researchers. He names the June 2016 East Coast low, which stripped sand from Collaroy-Narrabeen and other NSW beaches, as one of the most memorable events of his career. It was a moment that captured for him just how vulnerable Australia's built coastline is. 'I knew that beach [Narrabeen] like the back of my hand – and suddenly, it was unrecognisable. Just gone, overnight.' Harley's research suggests that not all beaches will suffer equally. Some may look unchanged, while others could shrink rapidly or disappear altogether. In remote parts of the country, where there is little housing or infrastructure, beaches will migrate and we won't even notice. The real issue? Planning decisions made a century ago, and in the decades since. Loading 'Places like Collaroy and Narrabeen were zoned too close to the coast back in the early 1900s,' he says. 'We're still paying for those decisions 120 years later. But what really concerns me now is that we're making similar mistakes.' Harley and his team work like storm-chasers, deploying technology and aircraft to scan all Australia's 11,000 beaches before and after extreme weather events. One of their most powerful tools is CoastSnap, a citizen science initiative where people use their smartphones to photograph beaches. Harley collates the photographs to measure and track beach erosion over time. But good data won't be enough without strong planning policy and funding, he warns. His research aims to identify coastal setback lines – 'basically the line in front of which you shouldn't be building', he says. He wants to see all tiers of government maintain the dynamic coast and only build in zones which are safe from erosion. 'Beaches act as natural buffers,' he says. 'If we lose that, the waves will break right against sea walls and promenades. It'll be more hazardous, more expensive to manage and much less accessible.' So what will Australian beaches look like in 2050 or 2100? 'Some beaches will look relatively similar to what they are today,' Harley predicts. 'Others will change. Some urban beaches will have very little sand and we'll be climbing off staircases, straight into the water. We're going to lose access in some places because the beach will be more hazardous. For many parts of the country, it's likely that the sand beaches that we know today will no longer exist, without expensive interventions.' Harley points to Manly's Fairy Bower. A 1956 painting held in the State Library of NSW depicts a small sandy beach, tucked in against the curve of the roadway. Today, it's a rocky platform with a tidal pool protected by a small sea wall. 'We'll have to learn to enjoy our beaches in different ways,' he says.

Wind and surf warnings remain as wild weather starts easing in NSW
Wind and surf warnings remain as wild weather starts easing in NSW

SBS Australia

time2 days ago

  • SBS Australia

Wind and surf warnings remain as wild weather starts easing in NSW

After causing wild weather in NSW this week, a weakening low-pressure system is now drifting north off the state's coast, according to the Bureau of Meteorology (BoM). "A series of low-pressure systems remain in the Tasman Sea. A secondary low that was moving northwards just offshore from the NSW coast has begun to weaken," BoM said in a statement on Thursday morning. "Winds are expected to ease about the high terrain in the north of the state later during the morning." The NSW State Emergency Services (SES) still has 32 warnings in place across the state, maintaining its orders from earlier this week for people in Wamberal and North Entrance to evacuate. 'Strong to damaging' winds According to the BoM, severe weather no longer affects the Hunter, metropolitan, Illawarra, and south coast districts, and the warning for these areas has been cancelled. But "strong to damaging" winds averaging 55 to 65km/h, with peak gusts of about 100km/h, are still likely in parts of the Northern Tablelands, the mid-north coast hinterland, and around the Border Ranges, and are expected to ease later on Thursday morning. Locations which may be affected include eastern metropolitan Sydney, Wollongong, Ulladulla, and Tenterfield. Six-metre-high waves In another statement, BoM has warned about damaging surf conditions for coastlines between Seal Rocks and the NSW-Victorian border. "These conditions are expected to begin easing during the day. Initially for southern coastlines, later during Thursday morning, and may ease throughout the warning area by late Thursday afternoon," it said. Waves with heights exceeding six metres have been observed in some of these areas. Severe warning for Lord Howe Island The bureau has also issued a severe weather warning for damaging winds for Lord Howe Island, 600km east of Port Macquarie. A complex low-pressure system "is bringing notably windy conditions and elevated seas to Lord Howe Island today", according to BoM. SES has advised people on the island to: Keep clear of fallen power lines. Stay indoors, away from windows, and keep children indoors. Check your property regularly for erosion or inundation by sea water, and if necessary, raise goods and electrical items. Stay out of the water and stay well away from surf-exposed areas. Warragamba Dam starts to spill WaterNSW has reported that the Warragamba Dam, located about 65km west of Sydney, started to spill last night. It has been predicted the peak outflows will reach approximately 60 gigalitres per day. WaterNSW said: "If you are downstream of the dam, stay away from fast flowing or deep water and never drive, ride or walk through floodwater."

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