Which one of the following statements does not relate to the concept of carbon credits?

For one tonne of carbon dioxide emission reduction a company receives a carbon emission certificate which can be traded like any other commodity.

The carbon emission certificates are sold to companies in developed economies like power utilities.

Carbon credit certificates are traded under UN- mandated international convention on climate change.

Developing economies are allowed to offset some of their emissions from cars, factories and homes by funding clean energy projects in developed ones.