Our Aviation Environmental & Sustainability Group specializes in analyzing and resolving airport environmental challenges, supporting over 200 airports worldwide with noise and air quality studies, sustainability plans, mitigation strategies, environmental documentation, public engagement, and regulatory compliance. Since 1981, Harris Miller Miller & Hanson Inc. (HMMH) has been a trusted leader in studying, assessing, and mitigating the environmental impacts of transportation projects across aviation, highway, rail, transit, industrial, construction, military, recreational, and entertainment sectors.