Mike Boots, the acting chairman of the White House Council on Environmental Quality (CEQ), is leaving in March. Boots has served as the chairman since February 2014. While no specific details have been provided as to where he is going, a spokesperson at the CEQ did say that he is “considering a number of energy- and environmentally-related options” possibly in the private sector.

At the start of the Obama administration, Boots was an associate director at the CEQ. His earlier work during the Obama adminstration included land and marine conservation. He has since led efforts to establish several new national monuments and drive down greenhouse gas emissions. Since 2008, he has helped the federal government decrease greenhouse gas emissions by 17%.

Boots isn’t the only one leaving in early 2015; John Podesta, the current Counselor to the President, will be leaving in February. Together, Podesta and Boots have been the driving force in changing the administration’s climate strategy as well as its work on public lands. It is unknown who will be taking the reins after Podesta and Boots leave. The White House has not yet nominated a permanent replacement for Nancy Sutley, who was the head of the CEQ prior to Boots.