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The Biden administration on Thursday made official its push for tougher regulations of greenhouse gas emissions from existing and newly built electric-power plants, the second-most polluting sector driving global warming.
It’s a step that widens previous stalled intentions to clamp down on the emissions from any new power plant to come on line but that would have let most operational coal- and natural gas-burning plants to be grandfathered in, as has been reported in recent weeks in the lead-up to Thursday’s Environmental…