The carbon credit can be divided into two forms according to the method of production and the difference in content. The first is emission allowances or often referred to as quotas. The second is the carbon credit, which represents a certified emission re

The Renewable Energy Certificate (REC) System is composed of policies, supply chain manufacturers, renewable energy advocacy organizations, RECs, green labels and the Environmental, Social, and Governance (ESG) rating.

Green-e is a certification program for renewable energy managed by the Center for Resource Solutions (CRS).

Carbon Footprint Label, also known as Carbon Emission Label, is a labeling method used to display the carbon emissions of companies, production processes, products (including services), and individuals.

The EU ETS implements a cap-and-trade program to limit greenhouse gas emissions below the cap through purchasing allowances.

RE100 is a global renewable energy advocacy organization led by the Climate Group and Carbon Disclosure Project (CDP) to promote the use of green power among end users.

The Carbon Border Adjustment Mechanism (CBAM) is considered an extension of the European Union Emission Trading Scheme (EU ETS).

South Korea has developed a carbon labeling scheme for intermediate products and services and a low-carbon product certification scheme, both of which are non-mandatory and voluntarily participated by enterprises.