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Connecting Carbon Markets: A guide to the Core Carbon Principles

A practical introduction to carbon markets and the Core Carbon Principles (CCPs) — the global threshold for high-integrity carbon credits.

Carbon markets are an important tool to help scale climate action. But they only work if they are built on trust, transparency and high integrity. This guide explains how carbon markets operate, how carbon credits are created, and how the CCPs set a global threshold for quality.

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Why high-integrity carbon markets matter

National climate plans alone are not enough to deliver the level of action needed to address climate change. Public funding cannot meet the full scale of investment required. Mobilising private finance is essential. 

High-integrity carbon markets can help channel finance towards effective climate mitigation activities. But this requires clear rules, credible standards and strong oversight. This guide explains how those elements work together.

What you will learn

This first module provides a clear, accessible introduction to carbon markets and the CCPs. Learn how…

  • carbon markets work in practice 
  • carbon credits are created, measured and used 
  • carbon-crediting programs and methodologies operate 
  • the Core Carbon Principles define high integrity 
  • international frameworks like Article 6 and CORSIA fit in 

Key takeaways

In this guide, you will learn: 

Carbon markets explained

Understand the basics of carbon markets and how they support climate action. 

What high integrity means

Learn what makes a carbon credit credible, reliable and trusted. 

The role of the CCPs

Learn how the Core Carbon Principles (CCPs) define a global threshold for quality. 

How the system works

Get a simple overview of how programs and methodologies are assessed. 

Why integrity builds trust

Understand how strong standards increase confidence and support market growth. 

What this means in practice

See how different stakeholders can use the CCPs in real-world decisions.

Who this guide is for

This guide is designed for a wide range of stakeholders working in or engaging with carbon markets.

Governments and policymakers

Understand how to design or scale carbon markets and apply consistent integrity standards. 

Corporate users and market participants

Make informed decisions on the use of high-integrity carbon credits. 

Civil society and researchers

Engage with carbon markets using clear, transparent information on how they operate. 

About the Integrity Council

The Integrity Council for the Voluntary Carbon Market (the Integrity Council) sets a global threshold standard for high-integrity carbon credits through the Core Carbon Principles.  

It assesses carbon-crediting programs and methodologies against this threshold to support transparency, consistency and confidence across carbon markets. 

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Download the CCP Guide

Get a clear, practical introduction to carbon markets and the Core Carbon Principles.

Get updates on future CCP Guide Modules:

CCP Guide Interest

A data capture form for the CCP guide pages, for those who are interested in future updates.

CCP Guide Updates
ICVCM Newsletter
CCP Guide Module 1 Cover