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Obama takes aim at global warning, emissions

President Barack Obama declared the climate change debate over Tuesday as he announced his most sweeping plan yet to tackle pollution and global warming, moving to deliver on a major priority he laid out in his first presidential campaign.

 

Obama ordered his administration to end the practice of coal-fired power plants dumping unlimited carbon dioxide emissions into the atmosphere, announcing the first-ever federal regulations on heat-trapping gases emitted by new and existing power plants. (AP)