This sort of development has significant impact on the environment and in this case most specifically the water and sea bed. Just because the developers or poli's organise "multi million dollar environmental impact studies" does not mean they know what they are talking about and the damage will be done despite these boffins "studies".
Take Botany Bay for instance. Millions and millions of dollars were spent on "environmental impact studies to determine the impact the 3rd runway into the bay would have on the rest of the bay. It was given a green light and all clear from the know alls and the project proceeded.
From as soon as the project was started the damage also began. Nowadays, the government has placed dozens of 'ashtetically pleasing' (NOT!) rock groynes all around the bay to try and rectify the problem of beaches that all disappeared due to changes in tidal movement and currents as a result from the runway and sand dredging.
Towra Point used to be one large island which is a bird sanctuary. After the runway the island split into two seperate sections and then the western most island disappeared alltogether.
We cannot afford to make massive changes to fragile ecosystems so more rich people can live by the water and developers can make a few more million whilst laying waste to whatever habitats get in their way.
One of the best things about Perth is that it isn't all high rise and trendy, I moved away from all that and I love the fact that Perth is a little sleepy and about 20 years behind. 20 years ago Sydney was a better place to live too, not any more.

You can keep the crowds of new age trendys and yuppies on the east coast. Perth is about lifestyle in the outdoors. WA is rugged and up until this time, relatively unspoiled. Why on earth would we want another Gold Coast, Brisbane etc, those places are shocking to live in!
This flies in the face of other changes the government is making, like adding and increasing Marine sanctuary areas and protecting fishes to have something for future generations. But it's OK to rape the sea bed and destroy natural ecosystems around the foreshore so long as they make mega bucks from the destruction?
This is a slap in the face to all Western Australians who appreciate the outdoors. Appreciate what we have because it is rare and beautiful and should not be taken for granted. If you want waterfront high rise, go live in Sydney or Melbourne. Don't allow the blight on the waterfront to contaminate an otherwise natural scene.
Stop reading and believing the lies of the developers and paid poli's. The joke will be on all of us

I'm stopping now because I'm getting angry

Good winds,