A Malcolm Turnbull puppet will be the centrepiece of a rally in Melbourne protesting against a proposed Queensland coal mine.
Mr Turnbull will meet with Adani CEO Guatam Adani, who plans to build the world's largest new coal mine in the Galilee Basin, in Melbourne on Monday.
It's believed the pair will discuss a $1 billion federal government loan to pay for a rail line that will link the proposed coal mine to the port.
Environmental groups are unhappy with the meeting because they say Mr Turnbull promised he wouldn't give public money to Adani's Galilee Basin coal projects.
The project will consist of six open-cut pits and up to five underground mines, and will supply Indian power plants.
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It also involves dredging an area near the Great Barrier Reef Marine Park.
Australian Conservation Foundation CEO Kelly O'Shanassy said the mine would be a "global climate catastrophe".
Protesters will gather outside the Commonwealth offices and have a puppet of Mr Turnbull being controlled by Mr Adani.
