Australia's High Court blocks extension of Mount Pleasant coal mine in landmark climate ruling

Australia's High Court has ruled in favor of a community group, blocking the expansion of the Mount Pleasant coal mine in New South Wales. The court dismissed MACH Energy's appeal to extend the mine's life until 2048 and double its output. The ruling found that the state's planning commission failed to consider the majority of the mine's greenhouse gas emissions, which come from overseas customers burning the coal. The decision is a landmark for climate litigation in Australia.

Australia's High Court blocks extension of Mount Pleasant coal mine in landmark climate ruling
Updated Oct 7, 2026 First reported Oct 4, 2026
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