Carbon removal

“Removing carbon is not the same as avoiding an emission, and storing it is not the same as keeping it stored. ”

Carbon removal describes a physical sequence: carbon dioxide is taken from the atmosphere and stored. The removal can occur through biological processes such as afforestation or soil carbon increase, engineered approaches such as direct air capture, or hybrid systems such as bioenergy with carbon capture and storage. The term is often blurred with avoided emissions.

Replacing a coal plant with solar power can prevent future emissions, but it does not remove carbon dioxide already in the atmosphere. Both actions matter, yet they answer different climate needs and should not be accounted for interchangeably. Removal quality depends on storage durability, measurement, additionality, leakage and reversal risk.

Carbon stored in forests or soils can be released through fire, drought, harvest or management change.

Geological storage is potentially more durable but requires energy, infrastructure, monitoring and liability arrangements. Pathways limiting warming rely on removals for different purposes: compensating for overshoot, neutralising limited residual emissions and, in some scenarios, producing net-negative emissions.

Heavy reliance on future removal can postpone reductions and transfer risk to future generations, land systems and communities. Organisations should therefore apply a hierarchy. Reduce gross emissions first; develop removal capacity in parallel; and match the durability of storage to the climate effect of the emissions being neutralised.

A temporary biological store is not automatically equivalent to a long-lived fossil carbon release. Carbon removal is neither a distraction to reject nor a licence to delay.

It is a constrained climate tool whose credibility depends on physical evidence and on whether it complements deep reduction.

Practical application

Separate removals from avoided emissions and gross reductions. Record method, capture boundary, storage reservoir, expected duration, monitoring, reversal provisions and ownership of the claim. Avoid aggregating unlike storage into one undifferentiated tonne.

Why it matters

Removals will be needed for residual emissions and potentially net-negative goals. Poor accounting can overstate climate benefit and understate reversal or land-use risk.

Common misconception

Every carbon credit represents carbon removal. Many credits represent avoided or reduced emissions; only some involve atmospheric removal and storage.

Connections

Direct Air Capture is an engineered pathway. Carbon Sequestration describes storage processes. Additionality, Permanence and Reversal Risk test quality.

A question worth asking

If the stored carbon were released in twenty years, would your original climate claim still be defensible?

Selected references

IPCC, Sixth Assessment Report, carbon dioxide removal. Science Based Targets initiative, neutralisation requirements. Oxford Principles for Net Zero Aligned Carbon Offsetting.