Mary-Leigh Ariens has 8 years of experience in solid waste services. She began her career in consulting as an Environmental Scientist with a history of working with air quality compliance, odor management, and sustainability for municipal solid waste (MSW) Landfills. Mrs. Ariens continues her work with landfill gas (LFG) as the Manager of Operations Planning and Performance at Archaea Energy, a bp company, where she supports the entire operations for renewable natural gas (RNG) and LFG to electric (LFGTE) facilities. Her professional experience includes a range of work including air quality compliance monitoring, modeling, and reporting for local, state, and federal regulatory agencies. She also compiles summaries of operational activities, analyzing plant financial performance, and creating insightful materials to showcase business unit performance. Additionally, she builds relationships and communication between different stakeholders within the company to improve collaboration and efficiencies on enterprise-wide projects.