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The Trump administration has repealed federal rules limiting greenhouse gas emissions from power plants, arguing the move will save the industry more than $300 billion and 'unleash' American energy production. The repeal marks a significant rollback of Biden-era environmental regulations aimed at curbing emissions from the electricity sector. Environmental advocates are expected to challenge the decision, which critics say will increase carbon emissions and undermine US climate commitments, while the administration frames it as reducing regulatory burdens on energy producers.