The Australian Greens have slammed the WA Government for environmentally approving the Beeliar Wetlands section of the Roe 8 freight highway, pointing out that no amount of so-called protection could safe-guard against slamming a multi-lane freight freeway through such a unique and significant area.

"This is an appalling decision from a government that doesn't even to pretend to care about the damage to people, suburbs and the environment," Senator Scott Ludlam said today.

The Australian Greens said today that a damning report on the Perth Freight link should be the final nail in the coffin of the unwanted project.

The report was prepared by Professor Peter Newman and Cole Hendrigan from the Curtin University Sustainability Policy Institute (CUSP) and describes the project as ‘a waste of taxpayers' money', confirming what residents and rail transport advocates have been saying for years.