Australia has locked in its contribution to the next decade of global climate action, with a pledge to cut its greenhouse gas emissions by 62 to 70 per cent.

The updated commitment is a requirement under the top international climate pact and is viewed as a beacon of national ambition on limiting temperature rise.

In the works for at least a year, and subject to rigorous debate, Prime Minister Anthony Albanese finally unveiled the 2035 target on Thursday ahead of his trip to New York for the United Nations General Assembly.

"Our government knows that climate change is real and we want to continue to seize the economic opportunity that the energy transition offers our nation," he told reporters in Sydney.

"This is a responsible target supported by science and a practical plan to get the

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