The czar position, and Ms. Browner herself, have been lightning rods for critics of the president's environmental-policy agenda and a reassurance to its supporters, who liked having a top official in the White House devoted to their priorities.
The White House health czar position may also be eliminated, said people familiar with the process.
Ms. Browner led the administration's effort to gather votes in Congress for legislation to limit emissions of greenhouse gases. The effort unraveled in the Senate last year, amid opposition from Republicans and some Democrats fearful of its impact on energy prices and jobs.
Ms. Browner was also a heroine to many environmentalists who cheered her decisions when she led the EPA in the 1990s and viewed her as an ally in internal administration debates over environmental regulation. Her influence within the administration within the White House has long been a source of concern to Republicans critical of her record in the Clinton administration. Fred Upton, the new chairman of the House Energy and Commerce (R., Mich.), had suggested in recent weeks that he intended to investigate Ms. Browner's authority.
Both czars were charged by President Barack Obama with coordinating policy among multiple government agencies, a function that some members of Congress argued should be left to agency directors who are confirmed by the Senate and would be subject more directly to congressional scrutiny.
Ms. Browner, whose formal title is assistant to the president for energy and climate change, was a leading candidate in the current White House reorganization for one of two positions as deputy chief of staff to Mr. Obama.
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WASHINGTON — Carol Browner is leaving her position as White House "energy czar," and a staff shake-up is likely to eliminate her post altogether, according to Democrats familiar with events.