The Power of Peatlands: Nature’s Hidden Carbon Sinks
Peatland doesn't announce itself. But it does a lot of quiet work. The UK's peatlands cover roughly 12% of the land surface, from the Flow Country of Caithness and Sutherland (the world's largest blanket bog) to the moors of the Pennines and Dartmoor. Together they store around 3.2 billion tonnes of carbon, more than all the UK's forests combined. When peatlands are healthy and wet, that carbon stays locked away. When they are damaged, drained or burned, it comes back out as CO2. That is why peatland restoration has become one of the most important nature-based climate solutions in Britain.
When people think of natural carbon sinks, forests and oceans often come to mind. However, peatlands—the waterlogged landscapes found in the UK, Europe, and beyond—are among the most efficient and largest carbon stores on Earth. Despite covering only 3% of the planet’s land surface, they store nearly twice as much carbon as all the world’s forests combined.
Yet, these crucial ecosystems are under threat. Drained for agriculture, development, and peat extraction, degraded peatlands are now a significant source of greenhouse gas emissions rather than a solution. Protecting and restoring these landscapes is essential for carbon sequestration, biodiversity preservation, and climate resilience.
What Are Peatlands?
Peatlands are wetlands where organic material, mainly plant matter, accumulates over thousands of years in waterlogged conditions. Due to a lack of oxygen, decomposition happens extremely slowly, locking in carbon rather than releasing it into the atmosphere.
Types of Peatlands
Bogs – Found in cool, wet climates like Scotland and Ireland, bogs rely solely on rainfall and are dominated by sphagnum moss, which plays a key role in carbon storage.
Fens – Unlike bogs, fens receive nutrients from surrounding groundwater and support a wider range of vegetation.
Swamps & Marshes – More common in warmer regions, these peatlands also play a vital role in water filtration and flood mitigation.
Why Are Peatlands So Important for Carbon Storage?
1. Peatlands Store Gigatons of Carbon
Peatlands hold approximately 550 gigatons of carbon, which is more than all the carbon stored in the Earth’s forests. When left undisturbed, they absorb and store carbon for thousands of years.
2. Damaged Peatlands Become Carbon Emitters
When peatlands are drained, burned, or degraded, they release CO₂ and methane, contributing significantly to global emissions. The UK’s degraded peatlands alone emit 10 million tonnes of CO₂ annually—equivalent to the emissions from over 5 million cars.
3. Peatland Restoration Is a High-Impact Climate Solution
Re-wetting and restoring peatlands can prevent emissions, restore biodiversity, and enhance climate resilience. By allowing natural vegetation to recover and water levels to rise, restored peatlands begin storing carbon again.
The Threats to Peatlands
Despite their importance, human activities are accelerating peatland degradation:
Agricultural Drainage – Peatlands are often drained for farming, releasing stored carbon into the atmosphere.
Peat Extraction – Peat is harvested for fuel and gardening compost, leading to irreversible carbon loss.
Infrastructure Development – Roads, housing, and industry have destroyed vast peatland areas worldwide.
Wildfires & Climate Change – Drier conditions increase fire risks, turning peatlands into massive carbon sources.
Peatland Protection and Restoration: A Climate Priority
Governments, businesses, and conservation groups are now recognising peatlands as a priority for climate action.
1. Policy and Conservation Initiatives
The UK Peatland Strategy aims to restore 35,000 hectares of peatland by 2025.
The EU Nature Restoration Law sets targets to halt peatland degradation across Europe.
The IUCN Peatland Programme is working globally to restore damaged peatlands.
2. Corporate Responsibility and Carbon Offsetting
Businesses can support verified peatland restoration projects as part of their carbon offsetting strategy.
3. Sustainable Alternatives to Peat-Based Products
Gardening & Agriculture: Peat-free compost alternatives such as coir, wood fiber, and green waste compost are now widely available.
Fuel & Energy: Shifting away from peat as a fuel source is crucial, especially in countries where it is still widely used.
UK peatland restoration: what is happening now
Peatland restoration in Britain is one of the most active and, honestly, one of the most contested parts of UK nature policy. Three things are worth knowing.
The Flow Country is now a World Heritage Site. In July 2024, UNESCO inscribed the Flow Country in Caithness and Sutherland as the world's first peatland World Heritage Site. It is Scotland's first natural World Heritage Site and covers around 1,900 square kilometres of blanket bog. The designation matters because it puts a landscape most people never see on the same list as the Grand Canyon and the Great Barrier Reef, and it changes the funding and protection conversation for the peatlands around it.gov
England has a large, long-dated restoration target, and is behind on the short-term one. Defra's 2025 Environmental Improvement Plan commits to restoring 40,000 hectares of peatland by 2030 and 280,000 hectares by 2050. The route to that target has run through the £50 million Nature for Climate Peatland Grant Scheme, administered by Natural England from 2021 to 2025. In March 2026 the National Audit Office reported that England delivered 26,426 hectares of restoration in the 2020 to 2025 window, 76% of the 35,000-hectare target. That is real progress, but it is also a real shortfall.gov+1
New funding is starting to focus on capacity, not just hectares. In 2026 Defra opened the Peatland Restoration Sector Capacity Grant, a £1.15 million scheme running to 2030 that funds skills, training, machinery and apprenticeships rather than restoration works directly. It is a small budget, but the shift is significant: government has recognised that England cannot hit its restoration targets without a workforce large enough to do the work.defraenvironment.blog.gov
Where CNB sits. Peatland restoration is one of the highest-integrity forms of climate action available in Britain. It stores carbon, protects rare species, filters drinking water and reduces flood risk in one landscape. It is also slow, technical and expensive, which is why credible peatland offsets under the IUCN UK Peatland Code are worth paying attention to. For UK businesses looking to fund domestic climate work with clear evidence behind it, peatland restoration is one of the strongest options on the table.
The Future of Peatland Conservation
As the world moves towards net-zero emissions, peatland restoration must become a core strategy in climate action. Governments, businesses, and consumers all have a role to play:
Policymakers must enforce stricter protections against peatland destruction.
Companies should support verified peatland carbon projects instead of relying on lower-impact offsetting methods.
Individuals can choose peat-free products and support conservation efforts.
Protecting and restoring peatlands is one of the most cost-effective and impactful ways to combat climate change. By preserving these vital carbon sinks, we can reduce emissions, restore ecosystems, and build a more sustainable future.
Peatlands do quiet work. So do the people restoring them, and the businesses funding that work. Our piece on the human stories behind a carbon credit traces those connections.
