SBS News reports on a landmark High Court ruling that halted the expansion of the Mount Pleasant coal mine in New South Wales, marking the first time Australia's highest court required project approvals to account for overseas carbon emissions. The decision, driven by a legal challenge from local residents, establishes that planning authorities must consider the broad environmental impacts of burning exported fossil fuels. While the ruling is hailed as a historic precedent for climate litigation, government officials and industry groups have cautioned that its application to Commonwealth de…