News & Stories

Greene Economics led the 2025 update of Thurston County’s On-Site Sewage System Management Plan to meet new state code and strengthen public and environmental health protections for drinking water, shellfish beds, and Puget Sound. The plan targets vulnerable on-site sewage systems—especially in sensitive and flood-prone areas—enhances data and climate change planning, protects sensitive watershed, and supports more than 55,000 systems serving homes and businesses countywide.

Greene Economics supported a benefit-cost analysis of California’s Early Earthquake Warning (EEW) system for the Governor’s Office of Emergency Services, supporting research data modeling to quantify system benefits. The study identified measurable gains across public safety, infrastructure, and business sectors and highlighted opportunities to strengthen and expand EEW use statewide.

Greene Economics is partnering with The Nature Conservancy and Highland Economics to study shared oat storage infrastructure in Minnesota’s Driftless Region. The project will help farmers expand production, meet quality standards for food-grade markets, and support the region’s role in rebuilding the domestic oat supply—while improving soil health and economic resilience.

Greene Economics’ compost market study for the Washington State Department of Ecology identifies state and county-level gaps and opportunities in organic waste collection, processing, and markets. The study projects organic material collected for composting will nearly quadruple by 2035, helping local governments and compost facilities plan for infrastructure growth and GHG reduction.