Miranda  Ballentine serves as the assistant secretary of the U.S. Air Force, with responsibility in the oversight, formulation, review and execution of plans, policies, programs and budgets for installations, energy, environment, safety and occupational health.
She was previously the director of sustainability for global renewable energy and sustainable facilities at Walmart Stores Inc., where she helped to develop and execute global strategies to reduce operating expenses in various facilities worldwide.
Ballentine was vice president for investor analysis and chief operating officer at David Gardiner & Associates before she joined Walmart.
She also chaired the World Economic Forum’s global growth action alliance’s renewable energy working group; the Sustainability Consortium’s external relations committee; NetImpact Corporate Advisory Council and the George Washington University’s institute for sustainability research, education and policy advisory board.
Ballentine holds a bachelor’s degree in psychology from Colorado State University and a master’s degree in business administration from George Washington University.