Carbon credits are a market-based approach to mitigating greenhouse gas emissions and combating climate change. They are a key component of carbon trading systems that aim to reduce the overall level of carbon dioxide (CO2) and other greenhouse gas emissions in the atmosphere.

Here's how carbon credits work:

1. Emission Reduction Projects: Organizations, industries, or countries undertake projects that reduce their greenhouse gas emissions.
2. Emission Reduction Verification: TakeBack verify the actual reduction in emissions achieved by these projects.
3. Carbon Credits Issuance: For every ton of CO2 or equivalent greenhouse gases reduced, a carbon credit is issued. This credit represents a quantified reduction in emissions.
4. Carbon Trading: Organizations or entities that have exceeded their allocated emission limits or wish to voluntarily offset their emissions can purchase carbon credits from emission reduction projects. This creates a financial incentive for emission reduction.

The concept behind carbon credits is to encourage emission reduction in a cost-effective manner. Industries or entities that can reduce emissions more efficiently can sell their surplus credits to those that find it more challenging to meet emission reduction targets. This creates an economic incentive for companies to adopt greener practices and technologies.

Carbon credits play a significant role in international efforts to combat climate change and achieve emission reduction goals outlined in agreements like the Kyoto Protocol and the Paris Agreement. They promote sustainable practices, renewable energy adoption, and investments in projects that contribute to a lower-carbon future.