Peatlands cover just 3% of the world’s land area, yet store at least 550 billion tonnes of carbon, more than all the world’s forests combined. Formed over millennia under waterlogged conditions, peat soils lock carbon away on geological timescales, making them uniquely durable climate assets when kept intact.
In the UK, peatlands cover ~10% of land (around 3 million hectares) and store an estimated 3 billion tonnes of carbon, equivalent to more than a century of the UK’s current annual greenhouse gas emissions. However, over 80% are degraded, emitting an estimated 20–30 MtCO₂e annually, removing this carbon from the cycle entirely is one of the most urgent land-use challenges the UK faces. The voluntary carbon market is evolving fast, restructuring itself around permanence, verifiability, and integrity. And in that new landscape, we believe one of the most undervalued and structurally misclassified opportunities is staring us in the face: the restoration of temperate peatlands.
Why Peatlands Are the Overlooked Critical Path to Net Zero
Peatlands are not a marginal climate solution. They are one of nature’s most powerful and most undervalued assets available to us.
- Unmatched carbon storage: Peatlands store more carbon per hectare than any other terrestrial ecosystem
- Immediate climate impact: Unlike afforestation projects that require decades of growth before meaningful sequestration occurs, peatland restoration and rewetting begins removing carbon from the cycle instantly.
- Exceptional permanence: When rewetted and appropriately managed, peatlands lock away carbon in waterlogged soils for centuries to millennia – more longer than many nature-based alternatives, which are vulnerable to fire, drought, and disease. Critically, unlike forests or other nature-based systems that can be replanted after catastrophic loss, peat systems destroyed by fire or degraded beyond a tipping point cannot be rebuilt on human timescales. Once lost, they are lost. This irreversibility makes their protection and restoration a matter of genuine urgency.
- Scalable ecosystem recovery: Restoration does not just address carbon; it reinstates functioning landscapes at scale, delivering biodiversity uplift and rebuilding degraded ecological networks.
- Water system resilience: Healthy peatlands filter pollutants, improve downstream water quality, and regulate hydrology by slowing water flow during storm events, reducing flood risk while maintaining base flows in dry periods.
Peatlands Are Essential Climate Infrastructure
Peatlands are perhaps best understood as nature’s carbon vault.
In temperate climates, such as the UK, northern Europe, and parts of North America, peat accumulates over millennia as decaying plant matter is trapped in cold, waterlogged, oxygen-absent conditions.
This process doesn’t just slow decomposition. It stops it. Permanent, natural biological internment of carbon.
The result is a dense, layered carbon archive stretching metres below ground. In its healthy state, this is one of the most effective long-term carbon removal systems on Earth.
But when peatlands are drained for agriculture, forestry, or development, that archive is opened. Exposed. Dry peat oxidises. Fires become increasingly likely and once a peat system burns or degrades past the point of recovery, no restoration programme can return what took ten thousand years to build Carbon that was removed from the cycle for millennia re-enters it in years, at an accelerating rate.
Restoration Reverses the Flow – Immediately
What makes peatlands so compelling is not just their storage capacity but their ability to return to net removals after restoration.
Rewetting halts the oxidation process by raising the water table. In the UK this would remove a source of approximately 23,100 kt CO2e from being released into the atmosphere each year. But more than that – it reawakens a process that has been quietly stalled for decades
Unlike woodland creation, which requires long establishment periods before significant carbon accumulation occurs, peatland restoration begins delivering climate impact immediately by stopping active removal from the carbon cycle and transitioning landscapes back to accumulation.
Crucially, once rewetted and stabilised, peat systems are inherently resilient carbon removal systems. They are not exposed to the same storm threat from increasingly aggressive weather, nor combustion risk as above-ground biomass, and their carbon is stored below ground in saturated conditions that dramatically reduce reversal risk. This is not speculative. In restored pocosins (shrubby peatlands in the south-eastern United States), studies show new carbon is being actively accumulated at 1.3 tonnes CO₂e per acre per year. When scaled across entire landscapes, this is a meaningful and measurable removal pathway.
Beyond Carbon: A Large-Scale Ecological Reset
Peatland restoration is not solely a carbon removal intervention – it is a large-scale ecological reset.
Rewetting re-establishes the hydrological conditions required for specialist bog communities to return. In healthy systems, sphagnum mosses dominate. These mosses are remarkable ecosystem engineers: they acidify their surroundings, retain extraordinary volumes of water (16-26x their dry weight), suppress decomposition, and physically build peat through their own slow accumulation. Alongside sphagnum, species such as cotton grass, sedges, bog asphodel, and cross-leaved heath appear which are all plants uniquely adapted to nutrient-poor, waterlogged conditions.
As vegetation structure and hydrology recover, so too does fauna.
Restored peatlands provide breeding habitat for threatened waders including curlew, lapwing and golden plover, as well as redshank and snipe. Raptors such as hen harrier and merlin benefit from improved prey availability and open hunting grounds. Highly specialised invertebrates including dragonflies, damselflies and the large heath butterfly, return as microhabitats diversify. Amphibians, small mammals and pollinators follow. The structural mosaic of pools, hummocks and wet lawns creates niches that drained peat simply cannot support.
Restoration does not just address carbon. It reinstates functioning landscapes at scale.
Removals vs Avoidance: Why Classification Matters
In increasingly sophisticated carbon markets, terminology, accuracy and science matter.
Historically, most peatland credits have been classified as “avoided emissions”. That framing recognised the benefit of stopping further degradation, but it failed to reflect the full climate benefits of restoration: preventing future damage, protecting the large amounts of carbon already stored in peat, and allowing new carbon to be captured over time. As our understanding has improved, this historic classification is increasingly seen as outdated.
A growing body of science, and a new generation of carbon protocols, are recognising that restored peatlands continue to store vast amounts of carbon and remove additional atmospheric CO₂.
In practice, this means restored peatlands now qualify for the same class of credit increasingly sought by institutional buyers and net-zero corporates: durable, verifiable carbon removals – the same category as biochar and biomass burial protocols.
In many ways, peatlands represent one of the most compelling nature-based examples of permanent carbon removal — a defining quality increasingly valued by leading hyperscaler buyers, who are uniquely positioned to think on the longest time horizons.
The Additionality Imperative: Carbon Markets as the Only Path to Scale
These ancient carbon removal systems will not be restored at scale without the carbon markets. The economics are stark: degraded peatland is often more immediately profitable as drained agricultural land or managed forestry. Without a credible, well-priced removal credit, there is no mechanism to make restoration financially viable across the millions of hectares that require it. The additionality case for peatland restoration is categorical — not marginal. Carbon finance is not merely supportive; it is the precondition for action at the scale the climate requires.
This also means that buyers of peatland removal credits are not simply offsetting — they are directly enabling the protection and restoration of ecosystems that are irreplaceable on human timescales. That is a fundamentally different value proposition from most nature-based solutions.
The Signal From the Market is Already There
Some of the most innovative carbon developers globally are already moving in this direction, and the market is following.
Emerging peatland-specific removal protocols are beginning to capture the full spectrum of what restoration delivers – breaking carbon accounting into distinct components including avoided losses, ecosystem rebalancing, and net peat accumulation, with corresponding crediting over time. Leading institutional buyers with the longest investment horizons are already engaging with this model. The signal is clear: where robust classification meets rigorous scientific evidence, catalytic capital follows.
It confirms what we have long believed: peatland restoration, when properly structured, belongs at the core of the carbon removal agenda — not the edge of the avoidance category.
From Understood to Investable
There are many reasons why peatland has had limited focus among carbon credit purchasers. The protocols are only now catching up with the science. Legacy methodologies undercounted what restoration actually delivers. Until recently, peatland ecosystems have been hard to restore, under-estimated in their contribution to carbon removals.
That is starting to change.
With credible MRV in place, robust water management systems designed for permanence, and supported ecosystem restoration that encourages biodiversity and water resilience, restored peatlands are emerging as one of the highest-integrity nature-based removals available at scale.
Critically, this makes them incredibly investable. At Oxygen Conservation, we have already proven it. We have sold peatland carbon credits at £100 per tonne, a record-breaking price that sets a new benchmark for nature-based removals. Later this year, we will be revealing the partnership behind that purchase.
Author: Esme Evans, Natural Capital Lead