Hobart’s status as the gateway to Antarctica is under threat due to the “exorbitant cost” of the redevelopment of Macquarie Wharf 6, the federal environment minister has warned.

In a letter to Premier Jeremy Rockliff, Environment Minister Tanya Plibersek said the redevelopment of Macquarie Wharf 6 was a “fundamental requirement” if Hobart was to remain the home of the research ship the RSV Nuyina.

Signing off on her letter, Ms Plibersek said she looked forward to reaching a solution that would deliver “certainty for Hobart as Australia’s home port for RSV Nuyina, with an appropriate refuelling option”, throwing in that this would allow the Tasmanian government to access the $240 million in federal funding for the Macquarie Precinct redevelopment, including the proposed stadium.