Articles on the ABC News site.

There is plenty of evidence that coastal erosion is becoming an increasing problem along the WA coastline.
Mandurah, North Fremantle, Sorrento, Seabird, Lancelin and Geraldton are just some of the areas tackling a crumbling coastline.
Some homes and roads have already been lost and it's costing millions in emergency repairs.
Scientists are well advanced in this area but can only make relatively short term predictions regarding the impact of erosion.
And they warn it will get much worse in WA and eventually drive some people out of their costal communities.

a comprehensive piece focusing on coastal erosion in Australia. For the 50% of the Australian coast that is composed of sand and in some places mud, the shoreline is prone to change, building seaward and in some places eroding landward. In most locations, this is a natural process with usually no impact on human settlement.

Coastal protection of the shoreline is rarely required in Australia, however in a few locations the dynamic shoreline has become a problem, in some cases a major and expensive problem, and in almost all of these cases the problem is related to human interference or encroachment on the shoreline.

This government website explains: types of erosion, how to identify erosion and the impacts of erosion.

The expansion of coastal urban development places increasing pressure on the natural environment through the effects of land clearing, waste disposal and pollution. Building along the foreshore and on sand dunes can affect the coastal landscape, coastal processes, and the natural movement of sand. Structures built on the coastline can increase erosion, leading to the need for beach replenishment. Coastal planning and management is now being undertaken to try to take into account these physical processes to avoid further erosion. As well as increased erosion, coastal communities are also vulnerable to rising sea levels, tropical cyclones and a loss of wetlands. In addition, the discharge of sewage and stormwater, land run-off, groundwater, and river inputs of nutrients and sediments to estuaries and the coastal waters constitutes one of Australia's greatest coastal management challenges (NLWRA 2002).

"I was not on the on the edge of the shoreline because I know the problem — I was quite a way back — and suddenly the whole ground went under me and threw me down about four metres," Ronda Weidmann said (Burgess, 2018).

Saibai is a low-lying mud island just a short dinghy trip from Papua New Guinea, which has been struggling with rising sea levels, land erosion and king tides for years. (Terzon, 2017).

For many, the seaside shanty town of Wedge Island, on Western Australia's coastline 160 kilometres north of Perth, is a weekend getaway destination.
But for one family it is the only home they have.
Rob and Kerry Howell live in a rusted tin shack and have been told they must leave because the ocean is threatening to wash away their home, in a devastating display of coastal erosion.
It is the second shack to be issued a demolition notice in two weeks, following bad weather and high tides.

Coastal erosion involves the wearing away of the coastline by natural processes, human activities, or both. Erosion creates various features in rocky shorelines, including cliffs and caves. It may also lead to the destruction of property and facilities close to the shore and cause flooding in nearby areas. Coastal erosion affects shorelines all around the world and, according to the 2007 Intergovernmental Panel on Climate Change (IPCC) Assessment Report, it is likely that anthropogenic global warming will exacerbate problems associated with coastal erosion.

The idyllic north coast areas where owners are caught between an encroaching ocean and plummeting property prices
IN a Mid West city of 40,000 people, up to 1000 properties are at risk of disappearing beneath the ocean, causing concern and anger among home oweners.
Geraldton has forged a reputation, and lucrative tourist trade, on its warm, windswept beaches and inviting turquoise water.
So when a council report released last month revealed that same water was reclaiming parts of coastal suburbs at rates up to 2m a year, it sent shock waves through the community.
Ocean views, in many cases earned through decades of toil, were suddenly a liability. (Zimmerman, 2018)

ALREADY heavily eroded, Port Beach appears to be partially losing its car park.

Eroded rubble has also been found in dunes after strong wind and waves during the weekend in North Fremantle.

“We’re only in April and we’ve already only got very little beach to walk on, and we don’t know where this erosion will end,” Port Beach Polar Bears president Suzette Felton told Community News this morning.

a rescue plan that would involve installing “reef modules” offshore and creating onshore groynes through sandbagging. However, it is not yet clear what option the Shire of Gingin, which will receive the money, will pursue.

Even 100km away in Perth the frustration emanating from the coastal town of Seabird is almost tangible.

Houses in the town, populated by fishermen, retirees and those in search of a quiet life, are in danger of falling into the ocean. Soon.

The popular units at Geordie Bay were built in the wrong place.
They are too close to the water.
And during winter storms, ocean water laps up to their foundations.
According to Rottnest Island Authority chief John Driscoll, they will eventually fall into the ocean. The same applies to units along Thomson Bay.

Quinns Rocks residents remember a time when they could swing from monkey bars and look out to the ocean.

But severe storms this winter forced the City of Wanneroo to demolish the playground at the popular Quinns beach foreshore.

“The erosion has come so far back they had to remove the playground for safety reasons,” longtime resident Natalie Sangalli said.

“We have lost 100m in 30 years and the beach is eroding at least one metre every year.”