Proof of Removal

Proof of Carbon Removed

Every carbon removal we sell is certified by Puro.earth and independently verified, already occurred (ex-post) and durably stored for over 100 years, retired on your behalf within one month of purchase, and confirmed with a link to the retirement record at the public registry.

Certified by Puro.earth

Puro.earth is a leading crediting platform for engineered carbon removal. They certiy most of the issued and retired CO2 removal credits globally.

Puro.earth defines robust, science-based methodologies for carbon removal, such as biochar, and requires independent third-party verification before any carbon removal is certified.

Only carbon dioxide that has been physically removed from the atmosphere and durably stored for at least 100 years is eligible for certification.

What a CO₂ Removal Certificate (CORC) represents

For every metric ton of CO₂ that is physically removed from the atmosphere and durably stored, Puro.earth issues one CO₂ Removal Certificate (CORC).

Each CORC confirms that the carbon removal is:

Ex-post - the removal has already taken place
Measured and verified - audited under science-based standards
Durable - stored for at least 100 years
Unique - tied to a single, completed removal

A CORC represents one metric ton of CO₂ physically removed and durably stored.

Public registry and retirement

Puro.earth operates a public registry where all CO₂ Removal Certificates are:

issued
tracked
and retired

Retirement means the certificate has been permanently closed in the public registry, so the same carbon removal cannot be sold, transferred, or counted twice.

Anyone can view retired certificates in the Puro.earth public registry.

This registry is the core mechanism that makes carbon removal transparent, traceable, and verifiable.

What this means for individuals

Remove Carbon Today exists to make certified carbon removal accessible to individuals.

We purchase CO₂ Removal Certificates from certified carbon removal suppliers and retire them on behalf of individual customers.

Every time purchases through our store add up to one full metric ton of CO₂ removed, one CORC is retired in the public registry.

When your purchase contributes to that retired ton, you receive an email confirmation, with a link to Puro.earth public registry retirement statement confirming the CORC is retired and closed on your behalf.

This retirement and confirmation is done within one month of purchase.

You do not need to rely on claims - you can independently verify the record yourself at Puro.earth registry.

What your proof looks like

Each retirement registry record shows:
- the amount of retired CORCs
- the carbon removal method and project
- the beneficiary and purpose of removal
- the Remove Carbon Today batch ID
- the retirement status and date
This confirms that the CO₂ has been removed from the atmosphere and claimed only once.
See an example of our CORC retirement record in the public Puro.earth registry →

Learn more at Puro.earth →
View Puro.earth public registry →

Want to learn more about carbon removal?

Learn how carbon removal works for individuals →

Why this level of proof matters

Atmospheric CO₂ concentrations are at their highest levels in human history and are the primary driver of global warming.

Reducing future emissions is essential, but it does not remove the excess CO₂ already in the atmosphere.

Durable carbon removal addresses this need by physically removing CO₂ and storing it for the long term, supporting efforts to limit warming and reduce cumulative climate risk.

Learn more about the climate crisis →

In short

Individuals using Remove Carbon Today can independently verify that their purchased carbon removal has been completed as certified, ex-post carbon removal and retired in a public registry.

See an example of our CORC retirement record in the public Puro.earth registry →