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UN Climate Chief Pushes Australia for Ambitious 2035 Emissions Cut

Simon Stiell warned that Canberra’s September decision will shape Australia’s clean energy partnerships.

Simon Stiell, Secretary of UN Climate Change (UNFCCC), speaks prior to the Copenhagen Climate Ministerial meeting in Copenhagen, Denmark, May 7, 2025. Ritzau Scanpix/Mads Claus Rasmussen via REUTERS/File Photo
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Australia is running out of time to make a difference to its climate emissions, a top United Nations official says.

Overview

  • Simon Stiell described the 2035 target as a defining moment and urged a 65–75% emissions reduction to secure investment, jobs and national security.
  • The government is awaiting the Climate Change Authority’s formal advice, which recommended cutting emissions by at least 65% from 2005 levels by 2035.
  • Critics argue the May approval of the nation’s largest gas plant to operate until 2070 calls Australia’s climate commitment into question.
  • Wood Mackenzie projected that state-level rollbacks, grid connection delays and low investment will leave Australia short of its 82% renewable energy goal for 2030.
  • Experts warned that a weak target could erode living standards and destabilize Pacific and Southeast Asian neighbours vulnerable to climate impacts.