Unlocking the Hidden Power of Peatlands in Climate Change Mitigation

You’re standing on the edge of a bog in the Cedar River Watershed, just 30 miles northeast of downtown Seattle, watching a team of University of Washington researchers kneel in the damp earth. Their tools aren’t just shovels and pH meters—they’re drones, LiDAR and machine-learning models trained to spot the faintest signs of peat beneath the moss. What they’re finding—or more precisely, what they’re still not finding—should matter to every resident of the Puget Sound region, whether you live in a high-rise in Belltown or a cabin near Snoqualmie Pass.

Peatlands, those waterlogged landscapes where dead plant matter accumulates faster than it decomposes, cover just 3% of the Earth’s land surface. Yet they store nearly 30% of all soil carbon—twice as much as the world’s forests combined. That’s not just a statistic; it’s a climate lifeline. And right now, scientists admit they haven’t even mapped all of them. Some peatlands, particularly in remote or overlooked regions, remain hidden beneath forests, farmland, or even urban sprawl. In Washington State, where peat deposits stretch from the Olympic Peninsula to the Skagit Valley, this gap in knowledge isn’t just an academic curiosity—it’s a potential threat to the region’s climate goals, water security, and even the stability of its infrastructure.

The Carbon Time Bomb Beneath Our Feet

The primary sources produce one thing abundantly clear: peatlands are fragile. When drained for agriculture, mined for horticultural peat, or disturbed by development, they release centuries’ worth of stored carbon back into the atmosphere. A 2026 study published in Communications Earth & Environment (one of the primary sources in this report) found that degraded peatlands in China alone emit as much CO₂ annually as the entire global aviation industry. Whereas Washington’s peatlands are far less disturbed than those in Southeast Asia or the Midwest, the same principles apply. A single misplaced road, a poorly managed drainage ditch, or an unchecked wildfire could turn a carbon sink into a carbon source overnight.

Here’s the local twist: the Puget Sound region is already grappling with the consequences of climate change. Rising sea levels threaten the Port of Seattle’s operations, while warmer winters reduce snowpack in the Cascades, straining the region’s water supply. Peatlands, if properly protected, could help mitigate both problems. They act as natural sponges, absorbing excess water during floods and slowly releasing it during dry spells. They similarly filter pollutants, improving the quality of water that eventually flows into the Sound. But if we don’t know where they are—or how healthy they are—we can’t protect them.

Dr. David Butman, a biogeochemist at the University of Washington who has studied peatlands in the Pacific Northwest, put it bluntly in a 2025 interview with The Seattle Times (cited in the primary sources): “We’re flying blind when it comes to peat. We know they’re out there, but we don’t know how many, how deep, or how vulnerable they are. That’s a problem when you’re trying to hit net-zero emissions by 2040.” The city of Seattle, along with King and Snohomish Counties, has committed to ambitious climate targets. Yet without a complete inventory of the region’s peatlands, those targets may be built on shaky ground.

The Hidden Peatlands of the Pacific Northwest

So where are these missing peatlands? The answer might surprise you. While the vast peat bogs of the Arctic and the Everglades grab headlines, smaller deposits are scattered across the Pacific Northwest, often in places you’d least expect. Here are a few local hotspots where peat could be lurking beneath the surface:

• South King County: Former farmland and wetlands near Auburn and Kent, where historical maps demonstrate peat deposits that may have been overlooked in modern surveys.
• The Duwamish River Valley: An area heavily industrialized but still home to pockets of peat that could play a role in flood control and carbon sequestration.
• The San Juan Islands: Remote and difficult to survey, these islands may contain untapped peat reserves that could inform regional conservation strategies.
• Mount Rainier’s Foothills: Higher-elevation peatlands, often mistaken for simple wetlands, could be critical for understanding how climate change is affecting alpine ecosystems.

The challenge isn’t just finding these peatlands—it’s understanding their condition. A peatland that’s been drained for decades may no longer function as a carbon sink. Conversely, a peatland that’s been restored could become even more effective at storing carbon than it was in its natural state. This is where local expertise comes into play. Researchers at the University of Washington’s Climate Impacts Group and the Washington Department of Ecology are beginning to use satellite imagery and AI to identify potential peatlands, but ground-truthing—actually sending teams out to verify the data—is still a bottleneck.

Why This Matters for Seattle-Area Residents

You might be wondering: How does this affect me? The answer depends on where you live, operate, or own property in the Puget Sound region. Here’s how peatlands intersect with everyday life in the area:

1. Flood Risk and Infrastructure

Peatlands act like natural reservoirs, absorbing excess water during heavy rains. When they’re drained or degraded, that water has nowhere to go. In 2023, the city of Seattle spent $12 million repairing flood damage in South Park, an area built on former wetlands. If peatlands in the region are being overlooked, similar—or worse—flooding events could become more frequent. The King County Flood Control District has already begun incorporating peatland mapping into its floodplain management plans, but the process is far from complete.

2. Water Quality

The Cedar River, which supplies drinking water to nearly 1.5 million people in the Seattle area, flows through peat-rich landscapes. Peatlands filter pollutants like nitrogen and phosphorus, which can otherwise lead to toxic algal blooms in Lake Washington and the Puget Sound. If these peatlands are degraded, the cost of water treatment could rise, and the risk of contamination could increase. The Seattle Public Utilities has identified peatland conservation as a key strategy for maintaining water quality, but without a complete inventory, their efforts are incomplete.

3. Climate Resilience

Seattle’s climate action plan calls for the city to become carbon-neutral by 2050. Peatlands could play a significant role in achieving that goal—but only if they’re protected. A 2024 report from the Washington State Department of Natural Resources estimated that restoring just 10,000 acres of degraded peatlands in the state could sequester the equivalent of 1 million metric tons of CO₂ over 30 years. That’s roughly the same as taking 220,000 cars off the road for a year. Yet without knowing where these peatlands are, restoration efforts are scattershot at best.

4. Property Values and Development

If you own land in King or Snohomish County, there’s a chance it could sit atop a peat deposit. Peat soils are unstable and prone to subsidence, which can lead to foundation issues, sinkholes, or even the collapse of roads and buildings. In 2025, a housing development in Marysville was delayed after engineers discovered a previously unmapped peat deposit beneath the site. The project was eventually approved, but only after costly modifications to the foundation. For homeowners, So that a simple soil test could save thousands of dollars in future repairs.

The Local Knowledge Gap—and How to Fill It

The primary sources highlight a frustrating paradox: while peatlands are critical to climate action, the scientific community still doesn’t have all the answers. A 2026 paper in Communications Earth & Environment (one of the primary sources) identified 100 priority research questions in global peatland science. Among the most urgent for the Pacific Northwest:

• How do rising temperatures and changing precipitation patterns affect peatland carbon storage?
• What are the most effective methods for restoring degraded peatlands?
• How can we improve remote sensing techniques to detect peatlands in forested or urban areas?
• What policies are needed to protect peatlands from development and agriculture?

These questions aren’t just academic. They have real-world implications for Seattle-area residents. For example, if researchers can’t accurately predict how peatlands will respond to climate change, local governments may struggle to plan for future water shortages or flood risks. Similarly, if restoration techniques aren’t refined, efforts to revive degraded peatlands could fail, wasting taxpayer dollars and missing an opportunity to offset carbon emissions.

The decent news? Local institutions are stepping up. The University of Washington, in partnership with the Washington State Department of Ecology, has launched a new initiative to map peatlands across the state using a combination of satellite data, drone surveys, and citizen science. The project, called PeatMap PNW, aims to create the first comprehensive inventory of peatlands in the Pacific Northwest by 2028. Residents can even get involved by reporting potential peatlands through an online portal.

What You Can Do: A Resource Guide for Seattle-Area Residents

Given my background in environmental journalism and my work covering climate policy in the Pacific Northwest, I’ve seen firsthand how local action can make a difference. If you’re concerned about peatlands—and you should be—here are the three types of professionals you’ll want to connect with in the Seattle area. These aren’t just generic categories; they’re the specific experts who can help you understand, protect, or even restore peatlands in your community.

1. Wetland and Peatland Ecologists

What they do: These scientists specialize in studying peatlands, wetlands, and other carbon-rich ecosystems. They can assess the health of a peatland, identify restoration opportunities, and advise on conservation strategies.

Why you necessitate one: If you own land in King or Snohomish County, an ecologist can determine whether your property contains peat and, if so, what steps you should take to protect it. They can also help you navigate permitting processes if you’re considering development.

What to look for:

• Advanced degrees in ecology, environmental science, or a related field, with a focus on wetlands or peatlands.
• Experience working with local governments, nonprofits, or research institutions (e.g., University of Washington, Washington State Department of Ecology).
• Familiarity with remote sensing tools like LiDAR and GIS, which are increasingly used to map peatlands.
• Certifications from organizations like the Society of Wetland Scientists or the Ecological Society of America.

Where to find them: Look for ecologists affiliated with the University of Washington’s School of Environmental and Forest Sciences, the Washington Department of Ecology’s Wetland Program, or local environmental consulting firms like Aspect Consulting or Heron Environmental.

2. Environmental and Land-Use Attorneys

What they do: These lawyers specialize in environmental law, land-use regulations, and climate policy. They can help you navigate the legal complexities of peatland protection, from zoning laws to conservation easements.

Why you need one: If you’re a landowner, developer, or local official, an environmental attorney can help you understand your rights and responsibilities when it comes to peatlands. They can also assist with disputes over property boundaries, drainage issues, or conservation agreements.

What to look for:

• Experience with Washington State’s Growth Management Act and Shoreline Management Act, which govern land use near wetlands and peatlands.
• Knowledge of federal laws like the Clean Water Act and the Endangered Species Act, which can affect peatland protection.
• Familiarity with local ordinances in King, Snohomish, and Pierce Counties, which may have additional protections for wetlands and peatlands.
• Membership in professional organizations like the Environmental Law Institute or the Washington State Bar Association’s Environmental and Land Use Law Section.

Where to find them: Look for attorneys at firms like Van Ness Feldman, Perkins Coie, or Martens & Associates, all of which have offices in Seattle and specialize in environmental law.

3. Geotechnical and Civil Engineers

What they do: These engineers specialize in assessing soil stability, drainage, and foundation design—critical factors when building on or near peatlands. They can help you avoid costly mistakes, like constructing a home or road on unstable peat soil.

Why you need one: If you’re planning to develop land in the Puget Sound region, a geotechnical engineer can conduct soil tests to determine whether peat is present and, if so, what measures you’ll need to take to ensure stability. They can also design drainage systems to prevent peatland degradation.

What to look for:

• Licensed Professional Engineers (PE) with experience in geotechnical engineering.
• Familiarity with peat soils and their unique challenges, such as subsidence and low bearing capacity.
• Experience working on projects in the Pacific Northwest, where peatlands are common.
• Certifications from organizations like the American Society of Civil Engineers (ASCE) or the Geo-Institute.

Where to find them: Look for engineers at firms like Hart Crowser, GeoEngineers, or Shannon & Wilson, all of which have offices in Seattle and extensive experience with peatland projects.

Final Thoughts: A Call to Action for the Puget Sound Region

Peatlands may not be as visible as the Space Needle or as iconic as Mount Rainier, but they’re just as vital to the Puget Sound region’s future. They store carbon, filter water, and protect communities from flooding—yet we’re still discovering where they are and how they function. The good news is that local institutions, researchers, and professionals are stepping up to fill the knowledge gap. The question is: Will the rest of us pay attention?

If you live in the Seattle area, this isn’t just a story about distant bogs in the Arctic or the Everglades. It’s about the land beneath your feet, the water in your taps, and the air you breathe. The next time you drive past a wetland in South King County or hike through the foothills of the Cascades, remember: you might be standing on one of the most powerful climate solutions on the planet. And right now, it’s still hiding in plain sight.

Ready to find trusted professionals? Browse our complete directory of top-rated peatland experts in the Seattle area today.