Tom Langan

Zach Freeze is the Senior Director for Sustainability at Walmart.  Zach is responsible for leading the environmental sustainability initiatives at the company, which includes strategic target setting and implementation of goals in the areas of climate, zero waste, and sustainable packaging.  Zach has been with Walmart for over 13 years, and has held roles in other areas in Walmart that include environmental health and safety and indirect sourcing and procurement.   

Prior to joining Walmart, Zach’s experience includes hazardous waste management, environmental consulting, and product specification testing.  Zach earned his Bachelor of Science degree in Chemistry from Arkansas Tech University and a Master of Science in Operations Management from the University of Arkansas.