Associated Press: President Barack Obamas top environmental official wasted no time Tuesday taking on opponents of the administrations plan to crack down on global warming pollution. In her first speech as the head of EPA, Gina McCarthy told an audience gathered at Harvard Law School in Cambridge, Mass., that curbing climate-altering pollution will spark business innovation, grow jobs and strengthen the economy. The message was classic Obama, who has long said that the environment and the economy arent in conflict...